The Nasdaq Stock Market, Inc. reported second quarter 2007 net income of $56.1 million, or $0.39 per diluted share, an increase of $39.5 million from $16.6 million, or $0.13 per diluted share, in the second quarter of 2006, and an increase of $37.8 million from $18.3 million, or $0.14 per diluted share, in the first quarter 2007.