NYSE Group Inc. Issues Short Interest Report

New York, May 27, 2009 --The NYSE Group, Inc. today reported short interest as of the close of business on the settlement date of May 15, 2009.

Based on information received from members and member organizations, short interest decreased to 15,146,124,765 shares from 15,173,139,551 (revised) shares on April 30, 2009. This was an decrease of 27,014,786 shares.

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The short interest on May 15 was equal to 3.96 percent of the total shares outstanding.

The short interest in warrants as of May 15 amounted to 37,406 warrants, compared to 30,157 warrants the previous period.

As of the settlement date, there were 4,110 stocks and 10 warrants available for trading. Of these, 3,381 issues had either a short position of at least 5,000 shares or a change of 2,000 shares since the last monthly report.

A short sale is any sale of a security that the seller does not own or any sale that is completed by the delivery of a borrowed security.

Adjusted short interest for the preceeding 12 months:

Source: NYSE Group Inc.