NASDAQ's competitive electronic market structure is designed to provide a fair, fast, efficient and low-cost marketplace for companies and investors. The information provided here is a snapshot of key performance benchmarks, which underscore NASDAQ's superior market quality. This data is updated regularly.

Get a quick look at what's happening today in the NASDAQ Market Center including:

• NASDAQ Market Summary
• NASDAQ Index Values
• Block Trades
• NASDAQ 10 Most Active By Share Volume
• NASDAQ 15 Most Active By Dollar Volume

Liquidity is moving off the floor at a rapid rate, and NASDAQ is trading greater volumes of NYSE-listed stocks than ever before. A record number of trades in NYSE securities- 14.9% - were executed on NASDAQ systems in January 2007. This is not surprising since NASDAQ's trading systems are the faster, more efficient, transparent, better way to trade NYSE-listed securities. Look up an individual NYSE-listed stock and find out just how much of its volume is being traded on NASDAQ by visiting the NASDAQ Market Share calculator.

The numbers are clear, NASDAQ's market share in NYSE-listed securities is on the rise. NASDAQ also continues to maintain strong market share in NASDAQ-listed securities. With the combination of the NASDAQ Market Center, INET and Brut, NASDAQ customers have access to even deeper pools of liquidity. View the full Monitor.

The NASDAQ Monthly Market Maker Volume Report provides a summarization of market participants' activity during a given month. The values are an aggregation of the full month's trading statistics specifically: Share Volume, Number of Trades, and the number of positions in NASDAQ Issues.

A list of the Top Ten Liquidity Providers in NYSE-listed securities that trade on NASDAQ/INET/Brut are published here on a monthly basis. Each firm that qualifies will also be displayed on the NASDAQ MarketSite Tower in Times Square.

Since 1971, NASDAQ has set a lot of volume and performance records. This section notes all of these milestones from our 35-year history.