NASDAQ OMX Group (NDAQ)

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.

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Table of Contents

The NASDAQ OMX Group, Inc.

Notes to Consolidated Financial Statements—(Continued)

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.

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.

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.

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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 0.25 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.