Nasdaq Stock Market Inc. plans to sell up to US$100 million in common stock and move its shares to the Nasdaq National Market, according to a filing Tuesday with the U.S. Securities and Exchange Commission.

The offering will consist of shares offered by NASD and by certain other stockholders who purchased Nasdaq common stock in 2000 and 2001 private placements.

None of the shares are being sold by Nasdaq or by its officers or other employees and Nasdaq will not be receiving any proceeds of the offering.

Merrill Lynch & Co. and Credit Suisse First Boston are acting as joint book-running managers.

As the TSX Group Inc. does, Nasdaq plans to list its stock on its own exchange.

Nasdaq is the largest electronic screen-based equity securities market in the U.S. With approximately 3,300 companies, it lists more companies and, on average, trades more shares per day than any other U.S. market.