The Nasdaq Stock Market Inc. announced that it will begin publishing consolidated market performance statistics for the Nasdaq Market Center, INET and Brut trading platforms.

Nasdaq says it expects to make these monthly performance statistics public on the second Monday of each month, and will disclose market statistics for both Nasdaq and NYSE-listed securities.

The firm noted that in February it continued to maintain strong market share in Nasdaq-listed securities, with total market share of 80.0%, in line with January’s market share of 80.9%. Nasdaq’s total market share in NYSE-listed securities was 21.4% last month, an increase from 15.9% in February 2005.

Also, Nasdaq’s average daily share volume in NYSE-listed securities in February was 497.4 million, compared to 311.0 million February 2005 and 551.8 million in the previous month. Included in the total market share figure for February is 25.3% in Nasdaq securities and 14.4% in NYSE securities executed by broker dealers and reported to Nasdaq.

“Nasdaq continues to see stable market share in Nasdaq-listed securities. Over the course of 2005 and with the acquisition of INET, we have seen a dramatic increase in our NYSE-listed market share,” commented Chris Concannon, executive vice president of Nasdaq Transaction Services.

“The increase in our market share of NYSE-listed securities is being driven by a strong demand for automated executions in NYSE-listed stocks,” Concannon added. ”As a result we have seen our liquidity pool of matched market share in NYSE-listed securities increase to an average of 7% in February and our touched market share in these securities rise from a 3% average in January 2005 to an average of 17.7% in February.”

Its total market share in Nasdaq-listed securities includes total share volume of Nasdaq-listed securities that are executed on the Nasdaq Market Center, INET and/or Brut books plus internalized volume, as a percentage of total consolidated Nasdaq market volume. Shares routed to other market centers for execution are not included.

Nasdaq reiterated that it expects to complete the integration of its INET acquisition during the fourth quarter of 2006. Integration of the technology platforms is expected to begin during the third quarter and continue into the fourth quarter. These time frames assume Nasdaq will receive prompt SEC approval of its “single book” and other integration-related rule proposals.