NYSE Euronext (NYX)

Adoption of SFAS 158

On December 31, 2006, NYSE Group adopted the recognition and disclosure provisions of SFAS 158. SFAS 158 required NYSE Group to recognize the funded status (i.e. the difference between the fair value of plan assets and the projected benefit obligations) of its pension and SERP plans in the December 31, 2006 statement of financial position, with a corresponding adjustment to accumulated other comprehensive income, net of tax. The adjustment to accumulated other comprehensive income at adoption represents the net unrecognized actuarial losses, unrecognized prior services costs, and unrecognized transition obligation remaining from the initial adopting of SFAS 87, all of which were previously netted against the pension and SERP plans funded

167

Table of Contents

status in NYSE Group’s statement of financial position pursuant to the provisions of SFAS 87. These amounts will be subsequently recognized as net periodic pension cost pursuant to NYSE Group’s historical accounting policy for amortizing such amounts. Further, actuarial gains and losses that arise in subsequent periods are not recognized as net periodic pension cost in the same periods and will be recognized as a component of other comprehensive income. Those amounts will be subsequently recognized as a component of net periodic pension cost on the same basis as the amounts recognized in accumulated other comprehensive income at adoption of SFAS 158.

The incremental effects of adopting the provisions of SFAS 158 on NYSE Group’s statement of financial position at December 31, 2006 are presented in the following table. The adoption of SFAS 158 had no effect on NYSE Group’s consolidated statement of income for the year ended December 31, 2006, or for any prior period presented, and it will not affect NYSE Group’s operating results in future periods. Had NYSE Group not been required to adopt SFAS 158 at December 31, 2006, it would have recognized an additional minimum pension liability pursuant to SFAS 87. The effect of recognizing the additional minimum liability is included in the table below:

Included in accumulated other comprehensive income at December 31, 2006 are the following amounts that have not yet been recognized in net periodic pension cost: unrecognized transition obligation of $0.3 million ($0.2 million net of tax), unrecognized prior service costs gain of $21.4 million ($11.8 million net of tax) and unrecognized actuarial losses of $42.3 million ($23.3 million net of tax). The amount of transition obligation, prior service cost, and actuarial loss included in accumulated other comprehensive income which are expected to be recognized in net periodic pension cost during the year ended December 31, 2007 are $0.0 million, $3.3 million gain ($1.8 million net of tax), and $3.3 million loss ($1.8 net million of tax), respectively.