1. Organization and Nature of Operations

On February 27, 2008, Nasdaq and OMX AB combined their businesses and Nasdaq was renamed The NASDAQ OMX Group, Inc. We are a leading global exchange group that delivers trading, exchange technology, securities listing, and public company services across six continents. Our global offerings are diverse and include trading across multiple asset classes, market data products, financial indexes, capital formation solutions, financial services and market technology products and services. Our technology powers markets across the globe, supporting cash equity trading, derivatives trading, clearing and settlement and many other functions.

In the U.S., we operate The NASDAQ Stock Market, a registered national securities exchange. The NASDAQ Stock Market is the largest electronic cash equity securities market in the United States in terms of number of listed companies and in the world in terms of share value traded. As of December 31, 2008, The NASDAQ Stock Market was home to over 3,000 listed companies with a combined market capitalization of approximately $2.6 trillion. In addition, in the U.S. we operate NASDAQ OMX PHLX, which is the third largest U.S. options market, The NASDAQ Options Market, NASDAQ OMX BX, a second cash equities trading market, and NASDAQ OMX Futures Exchange, a futures market.

In Europe, we operate exchanges in Stockholm (Sweden), Copenhagen (Denmark), Helsinki (Finland), and Iceland as NASDAQ OMX Nordic and exchanges in Tallinn (Estonia), Riga (Latvia) and Vilnius (Lithuania) as NASDAQ OMX Baltic. In addition, we operate NASDAQ OMX Europe (London), a marketplace for pan-European blue chip trading, NASDAQ OMX Commodities, our new offering for trading and clearing commodities in Oslo, and the Armenian Stock Exchange.

The exchanges that comprise NASADQ OMX Nordic and NASDAQ OMX Baltic offer trading in cash equities, bonds, structured products and ETFs, as well as trading and clearing of derivatives. Our Nordic and Baltic operations also offer alternative marketplaces for smaller companies called NASDAQ OMX First North. As of December 31, 2008, the exchanges within NASDAQ OMX Nordic and NASDAQ OMX Baltic were home to 824 listed companies with a combined market capitalization of approximately $605 billion.

We also operate two registered broker-dealers: Nasdaq Execution Services and NASDAQ Options Services. Nasdaq Execution Services is a wholly-owned subsidiary of The NASDAQ Stock Market. It has no customers, accepts orders from one user, The NASDAQ Stock Market, and currently operates solely as the routing broker for The NASDAQ Stock Market. Nasdaq Execution Services is distinguished from most broker-dealers in that it is a facility of The NASDAQ Stock Market, which functions as both an exchange and a SRO.

NASDAQ Options Services is also a wholly-owned subsidiary of The NASDAQ Stock Market. It performs a comparable function to Nasdaq Execution Services with respect to routing of orders from The NASDAQ Options Market.

We manage, operate and provide our products and services in three business segments: Market Services, Issuer Services and Market Technology.

Market Services

Our Market Services segment includes our U.S. and European Transaction Services businesses, as well as our Market Data and Broker Services businesses. We offer trading on multiple exchanges and facilities across several asset classes including equities, derivatives, debt, commodities, structured products and ETFs.

U.S. Transaction Services

In the U.S., we offer trading in equity securities, derivatives and ETFs on The NASDAQ Stock Market, NASDAQ OMX PHLX, The NASDAQ Options Market, NASDAQ OMX BX and NFX. Our transaction-based platforms in the U.S. provide market participants with the ability to access, process, display and integrate orders and quotes for cash equities and derivatives. The platforms allow the routing and execution of buy and sell orders as well as the reporting of transactions for cash equity securities, derivatives and ETFs, providing fee-based revenues.

European Transaction Services

Nordic Transaction Services

The exchanges that comprise NASDAQ OMX Nordic offer trading for equities and bonds and trading and clearing services for derivatives. Our platform allows the exchanges to share the same trading system which enables efficient cross-border trading and settlement, cross membership, and one source for Nordic market data.

Cash trading is offered in Nordic securities such as equities and depository receipts, warrants, convertibles, rights, fund units, ETFs, bonds and other interest-related products. NASDAQ OMX Nordic also offers trading in derivatives, such as stock options and futures, index options and futures, fixed-income options and futures and stock loans.

On NASDAQ OMX Stockholm, we offer clearing services for fixed-income options and futures, stock options and futures and index options and futures by serving as the central counterparty. In doing so, we guarantee the completion of the transaction and market participants can thereby limit their counterparty risk. We also act as the counterparty for certain over-the-counter contracts. The transactions are reported electronically prior to central counterparty clearing and we thereby guarantee the completion of the transaction. Following the completion of a transaction, settlement takes place between parties with the exchange of the securities and funds. The transfer of ownership is registered and the securities are stored on the owner’s behalf. Settlement and registration of cash trading takes place in Sweden and Finland via the local central securities depositories.

Baltic Transaction Services

NASDAQ OMX holds a 62% ownership stake in NASDAQ OMX Tallinn (Estonia) and holds a 93% ownership stake in both NASDAQ OMX Riga (Latvia) and NASDAQ OMX Vilnius (Lithuania). In addition, we own the central securities depositories in Estonia and Latvia, and 40 percent of the central securities depository in Lithuania.

In the Baltic markets, NASDAQ OMX exchanges offer their members trading, clearing, payment and custody services. Issuers, primarily large companies, are offered listing and a distribution network for their securities. The securities traded are mainly equities, bonds and treasury bills. Clearing, payment and custody services are offered through the central securities depositories in Estonia, Latvia and Lithuania. In addition, in Estonia and Latvia, NASDAQ OMX offers registry maintenance of fund units included in obligatory pension funds, and in Estonia, the maintenance of shareholder registers for listed companies. The Baltic central securities depositories offer a complete range of cross-border settlement services.

Pan-European Transaction Services

NASDAQ OMX Europe is a new marketplace designed for high performance trading of the most actively traded European stocks. It is the first platform to connect European liquidity pools with pan-European routing.

As of December 31, 2008, NASDAQ OMX Europe traded approximately 800 securities including constituents of the main European indices, ETFs and other highly liquid securities.

Commodities Trading and Clearing

NASDAQ OMX Commodities, together with third party partner Nord Pool, provides access to the world's largest power derivatives markets and one of Europe's largest carbon markets. NASDAQ OMX Commodities offers international derivatives and carbon products, operates a clearing business and offers consulting services to commodities markets globally. Nord Pool is responsible for exchange operations and trading activities, including ownership of Nordic derivatives products. NASDAQ OMX Commodities and Nord Pool have more than 400 members from 22 countries across a wide range of energy producers and consumers, as well as financial institutions. NASDAQ OMX Commodities offering is designed for banks, brokers, hedge funds and other financial institutions, as well as power utilities, industry, manufacturing and oil companies. NASDAQ OMX Commodities offers clearing services for energy derivative and carbon product contracts by serving as the central counterparty. In doing so, we guarantee the completion of the transaction and market participants can thereby limit their counterparty risk. We also act as the counterparty for trades on the OTC derivative market subject to our approval on a case by case basis. Trading on the contracts can take place up until the delivery period which can occur over a period of up to six years.

Access Services

We provide market participants with several alternatives for accessing our markets for a fee. We also earn revenues from annual and monthly exchange membership and registration fees.

Market Data

Market Data revenues are earned from U.S tape plans and U.S. and European market data products.

Net U.S. Tape Plans

The NASDAQ Stock Market operates as the exclusive Securities Information Processor of the UTP Plan for the collection and dissemination of best bid and offer information and last transaction information from markets that quote and trade in NASDAQ-listed securities. The NASDAQ Stock Market also is a participant in the UTP Plan and shares in the net distribution of revenue according to the plan on the same terms as the other plan participants. In the role as the Securities Information Processor, The NASDAQ Stock Market collects and disseminates quotation and last sale information for all transactions in NASDAQ-listed securities whether on The NASDAQ Stock Market or other exchanges. We sell this information to market participants and to data distributors which the data distributors then sell to the public. After deducting costs associated with acting as an exclusive Securities Information Processor, as permitted under the revenue sharing provision of the UTP Plan, we distribute the tape fees to the respective UTP Plan participants, including The NASDAQ Stock Market, based on a formula required by Regulation NMS that takes into account both trading and quoting activity. In addition, all quotes and trades in NYSE- and NYSE Alternext-listed securities are reported and disseminated in real time, and as such, we share in the tape fees for information on NYSE- and NYSE Alternext-listed securities.

U.S. Market Data Products

Our data products enhance transparency and provide critical information to the professional and non-professional marketplace. We collect and process information and earn revenues as a distributor of our market data. We provide varying levels of quote and trade information to market participants and to data distributors, who in turn sell subscriptions for this information to the public. Our systems enable vendors to gain direct access to our detailed order data, index information, mutual fund pricing information, and corporate action information on NASDAQ-listed securities. We earn revenues primarily based on the number of data subscribers and distributors of our data.

European Market Data Products

Nordic and Baltic market data products and services provide critical market transparency to the professional and non-professional investors that participate in NASDAQ OMX Nordic and NASDAQ OMX Baltic marketplaces and, at the same time, give investors greater insight into these markets.

Information products and services are based on the trading information from the exchanges that comprise NASDAQ OMX Nordic and NASDAQ OMX Baltic for three classes of securities: equities, bonds and derivative instruments. We provide varying levels of quote and trade information to market participants and to data distributors, who in turn sell subscriptions for this information to the public. Revenues from European market data are subscription based and are generated primarily based on the number of data subscribers and distributors of our data.

Broker Services

Our Broker Services operations offer technology and customized securities administration solutions to financial participants in the Nordic market and in the United Kingdom. Broker Services provide services through a registered securities company which is regulated by the Swedish and United Kingdom Financial Supervisory Authorities. The primary services include flexible back-office systems. Our services allow customers to entirely or partly outsource their company’s back-office functions.

We offer customer and account registration, business registration, clearing and settlement, corporate action handling for reconciliations and reporting to authorities. Available services also include direct settlement with the Nordic central securities depositories, real-time updating and communication via SWIFT to deposit banks. Revenues are based on a fixed basic fee for back- office brokerage services, such as administration or licensing, maintenance and operations, and a variable portion that depends on the number of transactions completed.

Issuer Services

Our Issuer Services segment includes our Global Listing Services and the Global Index Group businesses.

Global Listing Services

U.S. Listings

In the U.S., companies listed on The NASDAQ Stock Market represent a diverse array of industries including telecommunication services, information technology, financial services, healthcare, consumer products, industrials and energy. There are three types of fees applicable to companies that list on The NASDAQ Stock Market: an annual renewal fee, a listing of additional shares fees and an initial listing fee. Annual renewal fees for securities listed on The NASDAQ Stock Market are based on total shares outstanding. The fee for listing of additional shares is based on the total shares outstanding, which we review quarterly, and the initial listing fee for securities listed on The NASDAQ Stock Market includes a listing application fee and a total shares outstanding fee.

European Listings

We also offer listings on the exchanges that comprise NASDAQ OMX Nordic and NASDAQ OMX Baltic. Revenues are generated through annual fees paid by companies listed on these exchanges which are measured in terms of the listed company’s market capitalization. Our European listing customers are organization such as companies, funds or governments. Customers issue securities in the forms of equities and depository receipts, warrants, ETFs, convertibles, rights, options, bonds and other fixed-income related products.

Corporate Services

In addition, our Global Listing Services business includes revenues generated through our Corporate Services business. Our Corporate Services business provides customer support services, products and programs to companies, including companies listed on our exchanges. Through our Corporate Services offerings, companies gain access to innovative products and services that facilitate transparency, mitigate risk, maximize board efficiency and inspire better corporate governance.

Global Index Group

We develop and license NASDAQ OMX branded indexes, associated derivatives and financial products as part of our Global Index Group. These indexes and products leverage, extend and enhance the NASDAQ OMX brand. License fees for our trademark licenses vary by product based on assets or number or underlying dollar value of contracts issued. In addition to generating licensing revenues, these products, particularly mutual funds and ETFs, lead to increased investments in companies listed on The NASDAQ Stock Market, which enhances our ability to attract new U.S. listings. We also license cash-settled options, futures and options on futures on our indexes.

Market Technology

The Market Technology segment delivers technology and services to marketplaces throughout the world. Market Technology provides technology solutions for trading, clearing and settlement, and information dissemination, and also offers facility management integration and advisory services. Revenues are derived from three primary sources: licensing, support and project revenues, facility management services revenues and other revenues. License, support and project revenues are derived from the system solutions developed and sold by NASDAQ OMX. After we have developed and sold a system solution, the customer licenses the right to use the software. Facility management services revenues are derived when NASDAQ OMX assumes responsibility for the continuous operation of a system platform for a customer and receives facility management services revenues. Other revenues are derived from the amortization of the deferred revenue related to our contribution of technology licenses to NASDAQ Dubai and advisory services. See “Equity Investment in NASDAQ Dubai,” of Note 3, “Business Combinations,” for further discussion of our transaction with NASDAQ Dubai.

For further discussion of our segments, see Note 21, “Segments.” For further discussion of our revenue recognition policies, see “Revenue Recognition and Cost of Revenues,” of Note 2, “Summary of Significant Accounting Policies.”

3. Business Combinations

We completed the following significant acquisitions in 2008:

Each of these significant acquisitions is discussed in more detail below.

In addition, we completed the following acquisitions and strategic initiative in 2008, 2007 and 2006:

2008

2007

2006

Further detail on these acquisitions and strategic initiative is summarized in tables below.

The results of operations of each acquisition and strategic initiative are included in our Consolidated Statements of Income from the dates of each acquisition and strategic initiative.

Business Combination with OMX AB

On February 27, 2008, Nasdaq and OMX AB combined their businesses. The business combination was completed pursuant to the terms of an agreement with Borse Dubai Limited, a Dubai company, dated November 15, 2007. Pursuant to that agreement, Borse Dubai conducted an offer to acquire all of the outstanding shares of OMX AB and subsequently, on February 27, 2008, sold the OMX AB shares acquired in the offer or otherwise owned by Borse Dubai or its subsidiaries to Nasdaq. Nasdaq acquired 117,227,931 shares of OMX AB, representing 97.0% of the share capital of OMX AB, for SEK 11,678,630,352 ($1.9 billion) in cash and 60,561,515 shares of Nasdaq common stock issued to Borse Dubai and a trust, or the Trust, for Borse Dubai’s economic benefit. Subsequently, Borse Dubai acquired an additional 2,013,350 shares of OMX AB and, on March 17, 2008, sold those shares to Nasdaq in exchange for SEK 533,537,750 ($0.1 billion) in cash, as a result of which we owned 98.8% of OMX AB’s outstanding shares. See below for discussion of the acquisition of the remaining 1.2% of OMX AB’s shares held by OMX AB shareholders. The cash component of the purchase price for OMX AB was financed through cash on hand, our Credit Facilities and the issuance of 2.50% convertible senior notes. See Note 9, “Debt Obligations,” for further discussion.

At the closing of the transaction, Borse Dubai was issued shares of Nasdaq common stock representing 19.99% of our fully diluted outstanding share capital (approximately 42.9 million shares), and the balance (approximately 17.7 million shares) were issued to the Trust to be held for Borse Dubai’s economic benefit until disposed of by the Trust.

In August 2008, through compulsory acquisition procedures, NASDAQ OMX received advanced title for the remaining 1.2% of OMX AB shares held by OMX AB shareholders for an aggregate consideration of SEK 370.8 million ($61.7 million). As a result of the compulsory acquisition procedures, OMX AB is now wholly-owned by NASDAQ OMX.

Concurrently with the business combination with OMX AB, on February 27, 2008, Nasdaq also acquired 33 ¹/3% of the equity of DIFX in exchange for a contribution of $50 million in cash to DIFX and the entry into certain technology and trademark licensing agreements. In the fourth quarter of 2008, DIFX was renamed NASDAQ Dubai. We also are responsible, under an agreement with Borse Dubai and NASDAQ Dubai, for 50% of any additional capital contribution calls made by NASDAQ Dubai, subject to a maximum aggregate additional commitment by us of $25 million. We account for our investment in NASDAQ Dubai under the equity method of accounting in accordance with APB 18.

The business combination of Nasdaq and OMX AB and the acquisition of the equity interest in NASDAQ Dubai are collectively referred to as the “Transactions.”

The financial results of OMX are included in the consolidated results of NASDAQ OMX beginning on February 27, 2008.

Purchase Price

The following is a summary of the purchase price in the OMX AB business combination (in millions):

(i) Issuance of 2.50% convertible senior notes due August 15, 2013 for proceeds of $475.0 million;

(ii) Draw down of debt of $1,050.0 million under a five-year $2,000.0 million senior secured term loan facility; and

(iii) The use of $442.8 million of cash on hand.

See Note 9, “Debt Obligations,” for further discussion on the issuance of the 2.50% convertible senior notes and the draw down on the senior secured term loan facility.

The above purchase price has been preliminarily allocated based on an estimate of the fair value of OMX AB’s assets acquired and liabilities assumed. In addition, we have begun to finalize our plan to integrate certain activities related to our business combination with OMX AB. We are still gathering information to make final decisions regarding the optimal organization of the combined company, from which additional adjustments and refinements to our plan will arise. As such, additional adjustments to the OMX AB purchase price allocation will be recorded as we finalize restructuring costs associated with integration activities of the combined company in accordance with the requirements of EITF No. 95-3, “Recognition of Liabilities in Connection with a Purchase Business Combination,” or EITF 95-3. Upon completion of the organizational analysis and the approval of appropriate management, our plan will be finalized. The future adjustments, whether increasing or decreasing our plan’s total value, will impact goodwill and accounts payable and accrued liabilities. We expect our plan to be finalized during the one year allocation period. We are completing our plan under the provisions of EITF 95-3. See Note 4, “Goodwill and Purchased Intangible Assets,” for a summary of additional adjustments to the OMX AB purchase price as of December 31, 2008. All other restructuring liabilities outside the scope of EITF 95-3 will be recognized in the income statement when those costs have been incurred in accordance with SFAS No. 146, “Accounting for Costs Associated with Exit or Disposal Activities,” or SFAS 146. The final valuation of net assets will be completed as soon as possible but no later than one year from the acquisition date. To the extent that the estimates need to be adjusted, we will do so, but no later than one year after closing in accordance with SFAS 141.

The following table presents a summary of the preliminary OMX AB purchase price allocation, which was revised to reflect changes in the fair value of certain purchased intangible assets as well as the purchase of the remaining 1.2% of OMX AB shares:

In performing the preliminary purchase price allocation, Nasdaq considered, among other factors, the intention for the future use of the acquired assets, analyses of historical financial performance, and an estimate of the future performance of OMX AB’s business. The preliminary estimate of the fair values of intangible assets is based, in part, on a valuation using an income or cost approach, as appropriate. The risk-adjusted discount rates used to compute the present value of the expected net cash flows of individual intangible assets were based on OMX AB’s weighted average cost of capital, which ranged from 7.8% to 9.6%. These discount rates were determined after consideration of OMX AB’s rate of return on debt and equity and the weighted-average return on invested capital. In estimating the remaining useful lives of the intangible assets, we considered the six factors presented in paragraph 11 of SFAS 142 and an analysis of the intangible assets’ relevant historical attrition data.

Intangible Assets

The following table presents the details of the purchased intangible assets acquired in the OMX AB business combination. All purchased intangible assets are amortized using the straight-line method. See Note 4, “Goodwill and Purchased Intangible Assets,” for further discussion.

Below is a discussion of the methods used to determine the fair value of OMX AB’s intangible assets and equity method investment, as well as a discussion of the estimated average remaining useful life of each intangible asset. The carrying value of all other assets and liabilities was deemed to approximate their estimated fair value.

Equity Investment

As of February 27, 2008, OMX AB owned approximately 3.8 million shares of Orc Software AB, a company publicly traded on NASDAQ OMX Stockholm which was recorded under the equity method of accounting with a carrying value of $14.0 million. As part of the OMX AB purchase price allocation, the investment in Orc Software was recorded at fair value of $88.7 million based on the daily closing price as reported on NASDAQ OMX Stockholm as of February 27, 2008.

Exchange and Clearing Registrations

The exchange and clearing registrations represent licenses that provide OMX AB with the ability to operate its equity and derivative exchanges as well as the clearing function. Nasdaq views these intangible assets as a perpetual license to operate the exchanges so long as OMX AB meets its regulatory requirements. Nasdaq selected a variation of the income approach called the Greenfield Approach to value the exchange and clearing registrations. The Greenfield Approach refers to a discounted cash flow analysis that assumes the buyer is building the exchange and clearing operations from a start-up business to a normalized level of operations as of the acquisition date. This discounted cash flow model considers the required resources and eventual returns from the build-out of operational exchanges and the acquisition of customers, once the exchange and clearing registrations are obtained. The advantage of the approach is that it reflects the actual expectations that will arise from an investment in the registrations and it directly values the registrations. The Greenfield Approach relies on assumptions regarding projected revenues, margins, capital expenditures, depreciation, and working capital during the two year pre-trade phase, the 10 year ramp-up period as well as the terminal period.

A steady state projection for OMX AB was established first. The projection included synergies that a market participant buyer could realize. Since OMX AB has a strong market position, Nasdaq assumed that the projected revenues represent nearly 100.0% of the potential market until 2019, and that a market participant would be able to achieve 80.0% of the market within the 12 year ramp-up period. A terminal growth rate of 4.0% was chosen as a reasonable estimate of the growth rate of the stock exchange industry on a long-term basis. A steady state projection was used starting in year 12 based on the assumption that a stock exchange can expect to reach normalized operations at this time.

Nasdaq characterized the costs into fixed costs, variable costs, and technology costs. Annual fixed costs remained constant throughout the projection at approximately $122.5 million, which represents 50.0% of normalized costs. The remaining 50.0% of the costs were variable costs, which were estimated as a proportion to the revenue. It was estimated that OMX AB would have to incur approximately $200.0 million in upfront technology to start the exchanges, and ongoing maintenance technology costs would be equal to 15.0% of revenues thereafter.

The initial capital expenditures in years one and two reflect the costs associated with obtaining the fixed assets and the minimal regulatory fees required to start exchanges. Subsequent annual capital expenditures and depreciation were estimated at 4.9% of the revenue, assuming that maintenance capital expenditures are required to replace the depreciated fixed assets. Nasdaq also assumed that the exchanges would require $100.0 million of initial clearing capital which would increase to $275.0 million by the time the exchange reached normalized operations.

Based on historical working capital levels and a review of working capital for comparable companies operating in the industry, working capital for a typical market participant, as a percentage of incremental revenue, is projected to be approximately 12.5%.

The cash flows were then tax-effected at a rate of 25.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the exchange registrations would be amortized for tax purposes over a period of seven years.

An indefinite life was assumed for these registrations as the exchanges have operated, in some cases, for more than 140 years and the authorization to operate these exchanges is perpetual so long as OMX AB meets its regulatory requirements. Furthermore, since no legal, contractual, competitive, economic, or other factors limit the useful life of these intangible assets, Nasdaq considered the useful life of the exchange and clearing registrations to be indefinite. As noted above, we assessed the factors listed in paragraph 11 of SFAS 142 in making this indefinite life determination.

The fair value of the exchange registrations was determined to be approximately $583.0 million.

Trade Name

Nasdaq has incorporated OMX AB into three reporting segments—Issuer Services, Market Services, and Market Technology. The OMX AB trade name was valued as used in each of these reporting segments. The trade name represents the value of the market recognition of quality service that OMX AB and its predecessor entities have developed in their 140 years of operation. In valuing the acquired trade names, we used the income approach, specifically the relief from royalty approach, relying on publicly available information to determine the royalty rate that OMX AB would have to pay a third-party for the use of the trade name. This valuation methodology is based on the concept that because OMX AB owns the trade name, it does not have to pay a third-party for the right to use the trade name.

Nasdaq researched public documents and accessed the Royalty Source database for license agreements involving similar trade names in the financial services and technology industries. The guideline sample of license agreements yielded a range of royalty rates extending from 0.5% to 2.0% for financial services and technology companies. Based on the margins of the reporting segments, Nasdaq estimated the royalty rates to be 2.0% for Issuer Services, 2.0% for Market Services, and 0.5% for Market Technology.

The cash flows were then tax-effected at a rate of 25.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the trade name would be amortized for tax purposes over a period of seven years for Issuer Services and Market Services and five years for Market Technology.

The following is a summary of the indicated fair value for the trade name asset:

Customer Relationships

Customer relationships represent the non-contractual and contractual relationships that OMX AB has with issuers, traders, information vendors, and technology customers. OMX AB’s customer relationships were valued using the income approach, specifically an excess earnings method. This valuation approach relied on assumptions regarding projected revenues, attrition rates, and operating cash flows for each customer type, which were projected up to 45 years.

The following chart depicts OMX AB’s primary revenue streams and how the 2008 revenues were divided amongst the three customer relationship intangible assets:

For operating income, Nasdaq assumed that the weighted-average growth for existing customers was 20.0% for each reporting segment. Nasdaq also adjusted for synergies that would be available to the typical market participant, as well as the cost savings, assumed to be 2.0% of revenue, related to servicing an existing customer base versus a future revenue base.

Nasdaq assumed annual revenue attrition of 5.0% for the customers for all reporting segments, as well as charges for contributory assets. The tax-effected cash flows were discounted at a rate of 9.6%, 10.1%, and 7.9% for Issuer Services, Market Services, and Market Technology, respectively.

The cash flows were then tax-effected at a rate of 25.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the customer relationships would be amortized for tax purposes over a period of seven years for Issuer and Market Services and five years for Market Technology.

The following is a summary of the indicated fair value for the customer relationship assets:

The estimated remaining useful life captures 90.0% to 95.0% of the present value of the cash flows generated by each customer relationship. The remaining useful life was determined based on an analysis of the historical attrition rates of OMX AB customers and paragraph 11 of SFAS 142, which included an analysis of the legal, regulatory, contractual, competitive, economic, or other factors that limit the useful life of this intangible asset. The useful life is addressed in the section below, which discusses the assessment of the lives of the customer relationships and market technology.

Technology—Licensed to Third Parties

Nasdaq acquired two types of technology from OMX AB, developed and new. The developed technology represents the existing portfolio of software technologies that OMX AB had developed or acquired. These software technologies are licensed to more than 60 external unrelated customers and are also currently used internally by OMX AB. The new technology includes Genium. Our future technology platform is an ongoing effort as we further evaluate both Nasdaq and OMX AB technologies. NASDAQ OMX has refocused the development of Genium to combine our INET (Nasdaq’s current trading platform) and CLICK technologies with the original Genium concepts and components. Ongoing Genium development will predominately incorporate our core INET functionality, including order routing that will be deployed in the new NASDAQ OMX Europe. We will develop new integrated trading and clearing functions based on CLICK and SECUR, and the Genium platform will include Genium Market Info, our information dissemination solution. The exchanges that comprise NASDAQ OMX Nordic and NASDAQ OMX Baltic will begin the migration to the Genium platform in 2010. The fair values of the technologies licensed to third parties were computed using the income approach, specifically the excess earnings approach. This valuation approach relied on assumptions regarding projected revenues, operating cash flows and core technology charges for each technology, which were projected over three years for developed technology and over 10 years for new technology.

The technology revenue streams include 75.0% of license, support, and project revenues and facility management services revenues. Nasdaq assumed that certain customers will gradually start migrating from the existing technology to Genium starting in 2010 and will be almost fully migrated to Genium by 2014.

The projected margins for the technology business are consistent with the overall Market Technology business but are adjusted for research and development, or R&D, costs spent on each technology. Nasdaq assumed that for developed technology, 2.0% of the overall expenses were related to R&D associated with developed technology, and that for new technology, 10.0% of the overall expenses were related to R&D associated with developed technology.

A contributory asset charge for the use of other assets was deducted from the after-tax operating income yielding the excess earnings generated by the technologies, which were discounted at a rate of 7.9% for developed and new technologies.

The cash flows were then tax-effected at a rate of 25.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the technology would be amortized for tax purposes over a period of five years.

The fair value of the new technology was adjusted for the INET components that Nasdaq and OMX AB are incorporating into Genium, which represented approximately 96.0% of value.

The following is a summary of the indicated fair value for the technology asset:

The estimated useful life of the developed and new technology was based on discussions with OMX AB management as to the likely duration of benefit to be derived from the technology. Nasdaq considered such factors as the migration cycle from the existing technology to Genium, the estimated R&D, and the development of future generations of technology. Nasdaq also gave consideration to paragraph 11 of SFAS 142 and to the pace of the technological changes in the industries in which OMX AB sells its products.

Technology—Internal Use

The fair values of the internally used technology were valued using the income approach, specifically the relief from royalty approach, relying on publicly available information to determine the royalty rate that OMX AB would have to pay a third-party for the use of the technologies. This valuation methodology is based on the concept that because OMX AB owns the technologies it does not have to pay a third-party for the right to license the technology.

Nasdaq researched public documents and accessed the Royalty Source database for license agreements involving similar trade names in the financial services and technology industries. The guideline sample of license agreements yielded a range of royalty rates extending from 0.25% to 40.0% for financial services technologies. Based on the functionality of the technologies, Nasdaq estimated the royalty rates to be 5.0% for the developed and new technology.

The cash flows were then tax-effected at a rate of 25.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the technologies would be amortized for tax purposes over a period of seven years.

The fair value of the new technology was adjusted for the INET components that Nasdaq and OMX AB are incorporating into Genium, which represented approximately 96.0% of value.

The following is a summary of the indicated fair value for the internally licensed existing and new technologies:

Customer Relationships and Market Technology Lives

The following summarizes the methodologies and assumptions Nasdaq used to estimate the remaining economic lives of the customer relationships and market technology.

a. The expected use of the asset by the entity—As previously discussed, the existing technology will be partially replaced by the Genium technology over the next 6 years. In addition, the existing technology and Genium technology will be obsolete after three and 10 years, respectively. The determination of the useful life of Genium was based on the historical development and life cycles of existing technology products within Nasdaq and OMX AB.

b. The expected useful life of another asset or group of assets to which the useful life of the intangible asset may relate—The useful lives of the technology and customer relationship assets are not significantly impacted by any other asset or group of assets. The life of the customer relationships varies depending on the customers. The issuers generally have a 27 to 33 year life, the traders/information vendors have a 23 to 29 year life, and the market technology customers have a 20 to 24 year life. For technology, the existing technology has a three year life whereas Genium has a 10 year life.

c. Any legal, regulatory or contractual provisions that may limit the useful life—We are not aware of any.

d. Any legal, regulatory or contractual provisions that enable renewal or extension of the asset’s legal or contractual life without substantial cost—The market technology customers enter into license and facilities management contracts with a duration of three to 10 years. Such contracts are generally renewed at least once with minimal cost. The useful life of 20 to 24 years was selected based on the fact that many contracts are renewed more than one time, and a majority of the contracts have terms in the eight to 10 year range. We are not aware of any other legal, regulatory, or contractual provisions that may impact the lives of the customer relationships and market technology.

e. The effects of obsolescence, demand, competition, and other economic factors—Genium will be introduced both internally and externally beginning in 2010. The existing technology would become obsolete in approximately three years. In addition, Genium would become obsolete in approximately ten years should OMX AB not invest in upgrades and improvements. The life cycles were based on the historical development and life cycles of existing software products within Nasdaq and OMX AB.

With respect to the customer relationships, the issuers are generally loyal to their home country and, as such, list on the local exchanges. Most delistings relate to mergers or acquisitions rather than competition. However, within Europe, there has been increased competition with respect to the trading business, resulting in higher attrition rates for the listing/information vendor business. Finally, for the market technology customers, OMX AB faced competition from exchanges that choose to develop their own exchange technologies. The present competition does not have a large impact on the life cycle as customers typically return due to better pricing options and the high cost of changing providers.

f. The level of maintenance expenditures required to obtain the expected future cash flows from the asset. OMX AB expects to incur research and development expenses to maintain its technology. With respect to the customer relationships, OMX AB incurs sales and marketing expenses to maintain the current customers. Nasdaq believes that historically the research and development and sales and marketing expenses have maintained the quality of its products and services, thus contributing to a longer life.

Deferred Tax Liability

An $11.3 million current deferred tax liability and a $466.1 million non-current deferred tax liability (total deferred tax liability of $477.4 million) has been set up against the $1,207.1 million increase in value of OMX AB’s intangible assets outlined in the table above. The deferred tax liabilities represent the tax effect of the difference between the estimated assigned fair value of the acquired intangible assets ($1,207.1 million) and the tax basis ($0) of such assets. The estimated amount of $477.4 million is determined by multiplying the difference of $1,207.1 million by the U.S. marginal tax rate of 39.55%.

Equity Investment in NASDAQ Dubai

As discussed above, we also acquired 33 ¹/3% of the equity of NASDAQ Dubai in exchange for $50 million of cash consideration and the entry into certain technology and trademark licensing agreements. These agreements are intended to be nontransferable and perpetual, subject to various exceptions. The agreements grant to NASDAQ Dubai and/or its affiliates rights to use or sublicense certain intellectual property (including, in some instances, on an exclusive basis). We will also be responsible for 50.0% of any additional capital contribution calls made by NASDAQ Dubai, subject to a maximum aggregate additional commitment by us of $25.0 million.

Included in the Consolidated Balance Sheet is our equity method investment in NASDAQ Dubai, which was initially recorded for approximately $128 million. Our investment includes $50 million of cash consideration and the contribution of certain licenses related to our technology, or technology licenses, and the Nasdaq trade name with a gross value of $117 million (net value of $78 million after reduction by the portion of economic interest retained through our 33 ¹/3% equity investment in NASDAQ Dubai). Upon the concurrent closing of the Transactions, we recognized a non-recurring pre-tax gain of $26 million ($15.7 million after-tax) on the transfer of the Nasdaq trade name asset. In addition, as discussed below, we recorded deferred revenue of $52 million related to the transfer of the technology licenses and will ratably recognize this revenue over a seven year period, which is an estimate of the relevant period for which service will be provided to NASDAQ Dubai.

The basis of the estimated fair values of the technology licenses and the Nasdaq trade name and the calculation of deferred revenue on the technology licenses and the calculation of the Nasdaq trade name pre-tax and after-tax gains are presented below.

Estimated Fair Value of Licenses related to Technology and Calculation of Deferred Revenue

Estimated Fair Value of Technology Licenses

The technology license contributed to NASDAQ Dubai was valued using the cost savings method. As part of the Transactions, NASDAQ Dubai was granted the rights to use or sublicense certain intellectual property (including in some instances, on an exclusive basis) for use in NASDAQ Dubai’s operations in certain territories. Furthermore, NASDAQ Dubai can sublicense current or future commercially available technologies owned by NASDAQ OMX to any of its affiliated entities. Nasdaq estimated the hypothetical after-tax license fees saved by NASDAQ Dubai based on similar license agreements. The applicable license fees saved by the affiliated entities were based on the analysis of likely licensors of commercially available technologies. A hypothetical license agreement with NASDAQ Dubai and their affiliated entities was assumed to span a period of five years, and the license fees were assumed to be paid at the beginning of each period. The tax rate in Dubai is zero. The tax-effected license fee savings cash flows were discounted at a rate of 19.1%. The discount rate was developed using the comparable public company data and economic data reflecting the risk environment in NASDAQ Dubai’s market area. The discount rate was based on the capital asset pricing model and represents the weighted-average cost of capital.

The fair value of the technology licenses was determined to be approximately $78 million.

Calculation of Deferred Revenue

As part of the perpetual technology license agreement, we are obligated to provide NASDAQ Dubai with additional unspecified software developed or marketed by NASDAQ OMX in the future. As such, we have deemed our contribution of technology to be an “insubstance subscription” in accordance with SOP 97-2. As such, revenue that is earned as a result of the license agreement will be recognized ratably over its estimated economic useful life. We have recorded deferred revenue equal to the fair value of the technology licenses. The deferred revenue will be reduced by the portion of the economic interest retained since we will have a 33 ¹/3% equity investment in NASDAQ Dubai and the deferred revenue will be recognized ratably over the estimated economic useful life of the technology licenses, which is seven years.

Calculation is as follows:

For the year ended December 31, 2008, we recorded $5.8 million of income related to this deferred revenue in Market Technology revenues in the Consolidated Statements of Income.

Estimated Fair Value of License related to the Nasdaq Trade Name and Calculation of Gain on Transfer of the Nasdaq Trade Name

Estimated Fair Value of Nasdaq Trade Name

Nasdaq used the relief from royalty method in valuing NASDAQ Dubai’s right to the Nasdaq trade name. As a part of the Transactions, NASDAQ Dubai received rights to use the Nasdaq trade name. The valuation methodology used is based on the after-tax royalties saved by NASDAQ Dubai because of the licensing agreement. The royalty rate used was selected after researching publicly available information on license agreements involving similar trade names. Based on these license agreements, a royalty rate of 3.0% was selected, which was multiplied by NASDAQ Dubai’s projected revenue stream to derive the after-tax royalty savings. The tax rate in Dubai is zero. The resulting after-tax royalty savings were discounted using a rate of 19.1%, which represents the weighted average cost of capital.

The fair value of the license related to the Nasdaq trade name was determined to be approximately $39 million.

Calculation of Gain on Transfer of Asset

As noted above, the fair value of the license related to the Nasdaq trade name was approximately $39 million and had a zero carrying value on Nasdaq’s books and records prior to the transfer. The contribution of the Nasdaq trade name is considered an exchange of monetary assets in accordance with EITF 01-02 “Interpretations of APB Opinion No. 29”, therefore we determined that a gain should be recognized for the difference between Nasdaq’s carrying value and the fair value of this contributed asset. This gain is reduced by the portion of economic interest retained since we will have a 33 ¹/3% equity investment in NASDAQ Dubai.

The pre-tax gain was calculated as follows:

The after-tax gain was calculated as follows:

Tax Related to the NASDAQ Dubai Investment

For tax purposes, we recorded a current income tax payable of $46.3 million on the total intangible asset value of $117 million. In addition, we recorded a deferred tax asset of $36.0 million related to the difference between the total intangible asset value of $117 million and the gain of $26.0 million recognized on the Nasdaq trade name contribution.

Acquisition of PHLX

On July 24, 2008, we completed our previously announced acquisition of PHLX, or the PHLX acquisition. NASDAQ OMX’s cost to acquire PHLX of approximately $707.5 million ($652.0 million cash paid plus approximately $55.5 million of direct acquisition costs and working capital adjustments) is subject to certain post-closing adjustments.

Purchase price

The following is a summary of the purchase price in the PHLX acquisition (in millions):

The above estimated purchase price has been preliminarily allocated based on an estimate of the fair value of PHLX’s assets acquired and liabilities assumed. In addition, we have begun to finalize our plan to integrate certain activities related to our acquisition of PHLX. We are still gathering information from which to make final decisions regarding the optimal organization of the combined company, from which additional adjustments and refinements to our plan will arise. As such, additional adjustments to the PHLX purchase price allocation will be recorded as we estimate restructuring costs associated with integration activities of the combined company in accordance with the requirements of EITF 95-3. Upon completion of the organizational analysis and the approval of appropriate management, our plan will be finalized. The future adjustments, whether increasing or decreasing our plan’s total value, will impact goodwill and accounts payable and accrued liabilities. We expect our plan to be finalized during the one year allocation period. We are completing our plan under the provisions of EITF 95-3. All other restructuring liabilities outside the scope of EITF 95-3 will be recognized in the income statement when those costs have been incurred in accordance with SFAS 146. The final valuation of net assets will be completed as soon as possible but no later than one year from the acquisition date. To the extent that the estimates need to be adjusted, we will do so, but no later than one year after closing in accordance with SFAS 141.

The following table presents a summary of the preliminary PHLX purchase price allocation:

In performing the preliminary purchase price allocation, NASDAQ OMX considered, among other factors, the intention for the future use of the acquired assets, analyses of historical financial performance, and an estimate of the future performance of PHLX’s business. The estimate of the fair values of intangible assets is based, in part, on a valuation using an income approach, market approach, or cost approach, as appropriate. The risk-adjusted discount rates used to compute the present value of the expected net cash flows of individual intangible assets, based on PHLX’s weighted average cost of capital, ranged from 12.0% to 12.5%. These discount rates were determined after consideration of PHLX’s rate of return on debt and equity and the weighted-average return on invested capital. In estimating the remaining useful lives of the intangible assets, NASDAQ OMX considered the six factors presented in paragraph 11 of SFAS 142 and an analysis of the intangible assets’ relevant historical attrition data.

Intangible Assets

The following table presents the details of the purchased intangible assets acquired in the PHLX acquisition. All purchased intangible assets are amortized using the straight-line method. See Note 4, “Goodwill and Purchased Intangible Assets,” for further discussion.

Below is a discussion of the methods used to determine the fair value of PHLX’s intangible assets, as well as a discussion of the estimated average remaining useful life of each intangible asset. The carrying value of all other assets and liabilities was deemed to approximate their estimated fair value.

Exchange and Futures Registrations

The national securities exchange and futures registrations represent licenses that provide PHLX with the ability to operate its equity and options and futures exchanges. NASDAQ OMX views these intangible assets as perpetual licenses to operate the exchange and futures functions so long as PHLX meets certain regulatory

requirements. NASDAQ OMX selected a variation of the income approach called the Greenfield Approach to value the SRO exchange registration and the cost approach to value PBOT’s futures registration. PBOT has been renamed NFX and is a subsidiary of NASDAQ OMX PHLX.

An indefinite life was assumed for these registrations as PHLX is the oldest securities exchange in the United States. Furthermore, since no legal, contractual, competitive, economic, or other factors limit the useful life of these intangible assets, NASDAQ OMX considered the useful life of the exchange and futures registrations to be indefinite. We assessed the factors listed in paragraph 11 of SFAS 142 in making this indefinite life determination.

SRO Exchange Registration

The Greenfield Approach refers to a discounted cash flow analysis that assumes the buyer is building the exchange operation from a start-up business to a normalized level of operation as of the acquisition date. This discounted cash flow model considers the required resources and eventual returns from the build-out of an operational exchange and the acquisition of customers, once the exchange registration is obtained. The advantage of the approach is that it reflects the actual expectations that will arise from an investment in the registration and it directly values the registration. The Greenfield Approach relies on assumptions regarding projected revenues, margins, market share, capital expenditures, depreciation, and working capital during the two year pre-trade phase, the 10 year ramp-up period, and the terminal period.

A steady state projection for PHLX was established first. The projection excluded revenue from options and clearing. A steady state projection was used starting in year 12 based on the assumption that a stock exchange can expect to reach normalized operations at this time. In the terminal year, NASDAQ OMX assumed a market share equal to 80.0% of current projections. This is because PHLX would be a late entrant into this business and would not achieve the same market penetration they currently enjoy given their long history. It also reflects what a market participant would be able to achieve by the end of the 10 year ramp-up period. A terminal growth rate of 3.0% was chosen as a reasonable estimate of the growth rate of the stock exchange industry on a long-term basis.

NASDAQ OMX divided the costs into fixed costs and variable costs. Annual fixed costs were estimated to grow steadily from $20 million in 2008 to $50 million in 2019. Variable costs were estimated as a proportion of the revenue.

Based on historical working capital levels and a review of working capital for comparable companies operating in the industry, working capital for a typical market participant, as a percentage of incremental revenue, is projected to be approximately 34.0%.

The cash flows were then tax-effected at a rate of 40.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the SRO exchange registration would be amortized for tax purposes over a period of 15 years.

The following is a summary of the indicated fair value for the SRO exchange registration:

NFX Futures Registration

The fair value of NFX futures registration was valued using the cost approach, specifically the replacement cost new approach, to determine the current cost to purchase or replace the futures registration. This valuation methodology is based on the concept that a prudent investor would pay no more for an asset than the amount necessary to replace the asset.

The following is a summary of the indicated fair value for NFX futures registration:

Customer Relationships

Customer relationships represent the non-contractual and contractual relationships that PHLX has with its members. PHLX’s customer relationships were valued using the income approach, specifically an excess earnings method. This valuation approach relied on assumptions regarding projected revenues, attrition rates, and operating cash flows for its customers, which were projected up to 35 years.

NASDAQ OMX assumed annual revenue attrition of 5.0% for the customers and that 95.0% of the projected revenue growth came from existing customer relationships. Charges for contributory assets were taken, and the tax-effected cash flows were discounted at a rate of 12.5%.

The cash flows were then tax-effected at a rate of 40.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the customer relationships would be amortized for tax purposes over a period of 15 years.

The following is a summary of the indicated fair value for the customer relationships asset:

The estimated remaining useful life captures 90.0% to 95.0% of the present value of the cash flows generated by the customer relationships. The remaining useful life was determined based on an analysis of the historical attrition rates of PHLX customers and paragraph 11 of SFAS 142, which included an analysis of the legal, regulatory, contractual, competitive, economic, or other factors that limit the useful life of this intangible asset. The useful life of customer relationships is addressed in the section below, “Customer Relationships and Technology Lives.”

Technology—XL, PBOT, XLE, and SCCP

NASDAQ OMX acquired five technologies from PHLX: XL, PBOT, XLE, SCCP, and certain supporting technologies. These technologies represent the existing portfolio of software technologies that PHLX had developed or acquired to operate its exchange.

NASDAQ OMX will develop new integrated trading functions based on existing NASDAQ OMX technologies, and accordingly will either re-platform or discontinue using PHLX’s XL, PBOT, XLE, and SCCP technologies while incorporating several supporting, peripheral technologies into the revised platform. The fair values of the technologies being re-platformed or discontinued were valued using the income approach, specifically the relief from royalty approach, relying on publicly available information to determine the royalty rate that PHLX would have to pay a third-party for the use of the technologies. This valuation methodology is based on the concept that because PHLX owns the technologies, it does not have to pay a third-party for the right to license the technology.

NASDAQ OMX researched public documents and accessed the Royalty Source database for license agreements involving similar trade names in the financial services industries. Based on the functionality of the technologies, NASDAQ OMX estimated the royalty rates to be 8.0% for XL, XLE, and SCCP technologies and 5.0% for PBOT technology.

The cash flows were then tax-effected at a rate of 40.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the technologies would be amortized for tax purposes over a period of 15 years.

The following is a summary of the indicated fair value for XL, PBOT, XLE, and SCCP technologies:

The estimated useful life of the technologies was based on discussions with PHLX management as to the likely duration of benefit to be derived from the technology. Since NASDAQ OMX will be re-platforming most of the existing technologies, NASDAQ OMX considered the migration cycle for re-platforming the existing technologies. NASDAQ OMX also gave consideration to paragraph 11 of SFAS 142 and to the pace of the technological changes in the industries in which PHLX sells its products.

Technology—Supporting

The fair values of certain supporting technologies were valued using the cost approach, specifically the replacement cost new approach, to determine the current cost to purchase or replace the supporting technologies. This valuation methodology is based on the concept that a prudent investor would pay no more for an asset than the amount necessary to replace the asset.

The following is a summary of the indicated fair value for the supporting technologies:

Trade Name

In valuing PHLX’s trade names and trademarks, we used the income approach, specifically the relief from royalty approach, relying on publicly available information to determine the royalty rate that PHLX would have to pay a third-party for the use of the trade name. This valuation methodology is based on the concept that because PHLX owns the trade name, it does not have to pay a third-party for the right to use the trade name.

NASDAQ OMX researched public documents and accessed the Royalty Source database for license agreements involving similar trade names in the financial services and technology industries. The guideline sample of license agreements yielded a typical royalty rate of 0.5% for financial services companies.

The cash flows were then tax-effected at a rate of 40.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the trade name would be amortized for tax purposes over a period of 15 years.

The following is a summary of the indicated fair value for the trade name asset:

Customer Relationships and Technology Lives

The following summarizes the methodologies and assumptions NASDAQ OMX used to estimate the remaining economic lives of the customer relationships and technology.

a. The expected use of the asset by the entity—As previously discussed, most of the existing technology will be re-platformed or discontinued in the next two years. The determination of the useful life of supporting technologies was based on the historical development and life cycles of existing technology products within NASDAQ OMX.

b. The expected useful life of another asset or group of assets to which the useful life of the intangible asset may relate—The useful lives of the technology and customer relationships assets are not significantly impacted by any other asset or group of assets. The life of the customer relationships is about 19 to 23 years. For technology, the existing technologies will be re-platformed in the next one to two years whereas supporting technologies have a 5 year life.

c. Any legal, regulatory or contractual provisions that may limit the useful life—We are not aware of any.

d. Any legal, regulatory or contractual provisions that enable renewal or extension of the asset’s legal or contractual life without substantial cost—We are not aware of any other legal, regulatory, or contractual provisions that may impact the lives of the customer relationships and technology.

e. The effects of obsolescence, demand, competition, and other economic factors—Since NASDAQ OMX will re-platform most of the existing technologies, they would become obsolete in approximately 0.25 to two years. The life cycles were based on the business plans to re-platform the existing technologies within NASDAQ OMX and PHLX. With regards to the customer relationships, an analysis of attrition rates was performed based on historical information.

f. The level of maintenance expenditures required to obtain the expected future cash flows from the asset. PHLX expects to incur research and development expenses to maintain its technology. With respect to the customer relationships, PHLX incurs little, if any, sales and marketing expenses to maintain the current customers. NASDAQ OMX believes that historically the research and development have maintained the quality of its products and services, thus contributing to the shorter life.

Deferred Tax Liability

A $5.0 million current deferred tax liability and a $149.0 million non-current deferred tax liability (total deferred tax liability of $154.0 million) has been set up against the $336.8 million value of PHLX’s assets outlined in the above table. The deferred tax liabilities represent the tax effect of the difference between the estimated assigned fair value of the acquired intangible assets ($336.8 million) and the tax basis ($0) of such assets. The estimated amount of $154.0 million is determined by multiplying the difference of $336.8 million by the PHLX U.S. effective tax rate of 45.72%.

Acquisition of certain businesses of Nord Pool

On October 21, 2008, we completed our acquisition of Nord Pool’s clearing, international derivatives and consulting subsidiaries. The aggregate purchase price of NOK 2,192 million (approximately $317.1 million) consisted of NOK 1,725 million (approximately $249.4 million) in cash, NOK 457 million (approximately $66.0 million) in the form of a vendor note due to the current owners of Nord Pool within 18 months of closing and NOK 10 million (approximately $1.7 million) of direct acquisition costs. NASDAQ OMX may also be obligated to pay further earn-out payments of up to NOK 800 million (approximately $115.6 million), based on certain volume measurements over a five-year period. In accordance with SFAS 141, we will recognize these payments as additional goodwill if and when the earn-outs are achieved.

Purchase Price

The following is a summary of the purchase price of the Nord Pool transaction (in millions):

The following table presents a summary of the preliminary Nord Pool transaction purchase price allocation:

Intangible Assets

The following table presents the details of the purchased intangible assets acquired in the Nord Pool transaction. All finite-lived purchased intangible assets are amortized using the straight-line method. See Note 4, “Goodwill and Purchased Intangible Assets,” for further discussion.

In performing the preliminary purchase price allocation, NASDAQ OMX considered, among other factors, the intention for the future use of the acquired assets, analyses of historical financial performance, and an estimate of the future performance of the acquired businesses. The estimate of the fair values of intangible assets is based, in part, on a valuation using an income approach, market approach, or cost approach, as appropriate. The risk-adjusted discount rates used to compute the present value of the expected net cash flows of individual intangible assets, were based on Nord Pool’s weighted average cost of capital of 11.7%. This discount rate was determined after consideration of Nord Pool’s rate of return on debt and equity and the return on invested capital. In estimating the remaining useful lives of the intangible assets, NASDAQ OMX considered the six factors presented in paragraph 11 of SFAS 142 and an analysis of the intangible assets’ relevant historical attrition data. Below is a discussion of the method used to determine the fair value of the customer relationships intangible asset.

Customer Relationships

Customer relationships represent the non-contractual and contractual relationships that the businesses acquired in the Nord Pool transaction have with their members. Customer relationships were valued using the income approach, specifically an excess earnings method. This valuation approach relied on assumptions regarding projected revenues, attrition rates, and operating cash flows for customers, which were projected over 38 years.

NASDAQ OMX assumed annual revenue attrition of 5.0% for the customers and revenue growth of the customers at 80% of the projected overall revenue growth of the business. Charges for contributory assets were taken, and the tax-effected cash flows were discounted at a rate of 12.8%.

The cash flows were then tax-effected at a rate of 28.0%, and a discounted tax amortization benefit was added to the fair value of the asset under the assumption that the customer relationships would be amortized for tax purposes over a period of 21 years based on the remaining useful life of the customers and Norwegian tax law.

The following is a summary of the indicated fair value for the customer relationships asset:

The estimated remaining useful life captures approximately 95.0% of the present value of the cash flows generated by the customer relationships. The remaining useful life was determined based on an analysis of the historical attrition rates of customers and paragraph 11 of SFAS 142, which included an analysis of the legal, regulatory, contractual, competitive, economic, or other factors that limit the useful life of this intangible asset.

The following summarizes the methodologies and assumptions NASDAQ OMX used to estimate the remaining economic lives of the customer relationships.

a. The expected use of the asset by the entity—The determination of the useful life of the customer relationships asset was estimated based on the period in which 95% of the present value of cash flows related to the customer relationships are captured.

b. The expected useful life of another asset or group of assets to which the useful life of the intangible asset may relate—The useful lives of the customer relationships asset is not significantly impacted by any other asset or group of assets. The life of the customer relationships is about 20 to 22 years.

c. Any legal, regulatory or contractual provisions that may limit the useful life—We are not aware of any.

d. Any legal, regulatory or contractual provisions that enable renewal or extension of the asset’s legal or contractual life without substantial cost—We are not aware of any other legal, regulatory, or contractual provisions that may impact the lives of the customer relationships and technology.

e. The effects of obsolescence, demand, competition, and other economic factors—With regards to the customer relationships, an analysis of attrition rates was performed based on historical information.

f. The level of maintenance expenditures required to obtain the expected future cash flows from the asset. With respect to the customer relationships, the businesses acquired in the Nord Pool transaction incur little, if any, sales and marketing expenses to maintain the current customers.

Deferred Tax Liability

A $24.9 million deferred tax liability has been set up against the $89.1 million value of the intangible assets acquired in the Nord Pool transaction outlined in the above table. The deferred tax liability represents the tax effect of the difference between the estimated assigned fair value of the acquired intangible assets ($89.1 million) and the tax basis ($0) of such assets. The estimated amount of $24.9 million is determined by multiplying the difference of $89.1 million by the effective tax rate of 28.0%.

Pro Forma Results

The consolidated financial statements for the year ended December 31, 2008 include the financial results of OMX AB, PHLX, BSX, certain businesses of Nord Pool and IDCG from the date of each acquisition. Unaudited pro forma combined historical results for the years ended December 31, 2008 and 2007 are included in the table below. The unaudited pro forma combined results include the historical Consolidated Statements of Income of Nasdaq, OMX AB and PHLX giving effect to the OMX AB business combination and PHLX acquisition as if they had occurred at the beginning of each period presented. We also acquired BSX in August 2008, certain businesses of Nord Pool in October 2008 and IDCG in December 2008, but have not included their results prior to their respective acquisition dates in these pro forma results as these acquisitions were not considered significant.

The pro forma results for the years ended December 31, 2008 and 2007 primarily include adjustments for amortization of the intangible assets presented above, the elimination of OMX AB’s historical amortization expense, elimination of PHLX’s non-recurring expenses related to the acquisition, additional interest expense on the Credit Facilities and the 2.50% convertible senior notes, elimination of OMX AB’s historical interest expense related to OMX AB’s debt that was refinanced and related tax adjustments.

The pro forma results for the year ended December 31, 2008 also include the elimination of the non-recurring gain on the contribution of the Nasdaq trade name in the NASDAQ Dubai transaction discussed above. In addition, the pro forma results for the year ended December 31, 2007 were adjusted to exclude the material non-recurring charges or credits and related tax effects related to our previous investment in the LSE. The adjustments related to the LSE transaction include the elimination of Nasdaq’s interest expense related to the financing of the purchase of the share capital of the LSE, the loss on foreign currency option contracts purchased to hedge the foreign currency exposure on our acquisition bid, dividend income received from the LSE, strategic initiative costs and related tax adjustments. In addition, pro forma results for the years ended December 31, 2008 and 2007 include adjustments to eliminate interest income related to the net cash received from the sale of our investment in the LSE.

Other Acquisitions Completed in 2008, 2007 and 2006

The following table presents a summary of our other acquisitions in 2008, 2007 and 2006:

The following table presents the details of the purchased intangible assets acquired in the above 2008, 2007 and 2006 acquisitions. All purchased intangible assets are amortized using the straight-line method. See Note 4, “Goodwill and Purchased Intangible Assets,” for further discussion.