	Matching System Order Types Direct Access Server Market Data 50 Most Active Issues Historical Volume Traded Issues Tape A Tape B Tape C Trading Updates System Status CHX Notices Participant Services Notifications Customer Service Notifications Technical Notifications CHXConnect CHXConnect Issues Listing Program CHX-listed Issues Gov. Listing Standards Min. Listing Standards Unlisted Trading Privileges Technical Documents Execution Quality Threshold Securities Reg SHO - Short Sales Participant Services Application For Trading Permit Information Institutional Brokers Market Makers Contact Participant Services Rules CHX Rules CHX Fee Schedule Rule Filings MCC Rules MSTC Rules Market Regulation Surveillance Enforcement Compliance & Examinations Comment Letters Information Memos Disciplinary Orders Arbitration Decisions Weekly Bulletins Legal Notices Information Circulars General History FAQ Executives Holiday Schedule Press Release Archives Governance Board Structure Types of Directors Current Directors Committees Careers Opportunities I-Board Stockholder Information Charter Bylaws CHX Holdings Governance Executives Board Annual Reports

General

CHX is an integral part of the National Market System offering competition to all U.S. equity markets. CHX offers the ability to transact business in virtually all NYSE, AMEX and NASDAQ issues. With a robust Matching System and connectivity to multiple order sending firms and market-makers, the CHX system offers functionality beyond the simple matching of orders and is an ideal venue for hedge funds, options market markers, quantitative, professional and active individual traders that require immediate and automated execution, while continuing to serve the needs of traditional broker-dealer clients and the individual investors they represent.