There are no securities exchanges in New Mexico. Approximately 272 broker-dealer organizations conduct securities transactions in the state, involving 1,526 employees. There are also 36 registered securities investment advisory firms that provide services. New Mexico is the headquarters of 11 NASDAQ-listed companies, and has incorporated 6 NYSE-listed companies: Horizon/CMS Healthcare Corp., Nord Resources Corp., Public Service Company of New Mexico, Security Capital Group, Inc., Sun Healthcare Group, Inc., and Thornbuy Mortgage Inc.