New NASDAQ Market Data Web Page Posted - Share, Trade & Listing Information To Be Updated Monthly

New NASDAQ Market Data Web Page Posted - Share, Trade & Listing Information To Be Updated Monthly The Nasdaq Stock Market, Inc. today announced that it has posted market data on volume and market share, trades and market share, and listing information to the NASDAQ Web site at www.NASDAQ.com and the NASDAQ NewsroomSM at www.NASDAQnews.com.

In an effort to help its key constituents better understand its operations on an ongoing basis, the data will be updated on the 15th of every month or the preceding business day if the 15th is on a weekend or holiday.

Market data for January 2003 is as follows:

Volume and Market Share

NASDAQ Average Daily Composite Volume: 1.55 billion
NASDAQ SuperMontage Volume: 19.1%
Volume Reported to NASDAQ: 86.7%

Trades and Market Share

NASDAQ Average Daily Composite Trades: 2.56 million
NASDAQ SuperMontage Trades: 23.3%
Trades Reported to NASDAQ: 83.2%

Listing Information

National Market Issuers: 2,784; New Issuers: 2; Regulatory Delistings: 5
SmallCap Market Issuers: 836; New Issuers: 6; Regulatory Delistings: 17
Total Issuers: 3,620; New Issuers: 8; Regulatory Delistings: 22

In order to use data more consistent with the separation of the Securities Information Processor (SIP) function from The Nasdaq Stock Market that began in July 2002, the methodology for calculating systems market share of volume and trades was adjusted. As a result, information on volume market share and trade market share provided here may not be comparable to such data previously provided by NASDAQ for prior periods based on the old methodology. A discussion of the SIP separation is contained in NASDAQ's Form 10-K, as amended.

NASDAQ (OTCBB:NDAQ) is the world's largest electronic stock market. With approximately 3,600 companies, NASDAQ lists more companies and trades more shares per day than any other U.S. market. It is home to category-defining companies that are leaders across all areas of business including technology, retail, communications, financial services, media and biotechnology industries. For more information about NASDAQ, visit the NASDAQ Web site at www.NASDAQ.com or the NASDAQ NewsroomSM at www.NASDAQnews.com.