Nasdaq (Nasdaq:NDAQ) is a leading provider of trading, clearing, exchange technology, listing, information and public company services across six continents. Through its diverse portfolio of solutions, Nasdaq enables customers to plan, optimize and execute their business vision with confidence, using proven technologies that provide transparency and insight for navigating today's global capital markets. As the creator of the world's first electronic stock market, its technology powers more than 70 marketplaces in 50 countries, and 1 in 10 of the world's securities transactions. Nasdaq is home to more than 3,600 listed companies with a market value of approximately $9.6 trillion and more than 10,000 corporate clients. NASDAQ.com provides free stock quotes, including official open and close prices, and much more. Check out pre market and after hours stock trading, insider stock transactions, stock market sectors, and analyst stock ratings for NASDAQ, NYSE or Amex companies that interest you.