Nasdaq Stock Market Inc. operates The Nasdaq Stock Market, an electronic screen-based equity securities market. Nasdaq provides products and services three principal categories. Transaction Services include collecting, processing and disseminating price quotes of Nasdaq-listed securities, the routing and execution of buy and sell orders for Nasdaq-listed securities, and transaction reporting services. Market participants in The Nasdaq Stock Market, consisting of market makers, electronic communication networks (ECNs), registered stock exchanges and order entry firms, are the users of Nasdaqs Transaction Services. Market Information Services provide varying levels of quote and trade information to data vendors, which, in turn, sell the information to the public. Corporate Client Group provides customer services and information products to Nasdaq-listed companies and is responsible for obtaining new listings on The Nasdaq Stock Market.