Financial services in the nature of an over-the-counter (OTC) derivatives trading system, namely, over-the-counter (OTC) derivatives trade execution services wherein multiple participants have the ability to execute or trade financial instruments, including OTC derivatives and related financial instruments, by accepting bids and offers made by other participants that are open to one or multiple participants in the system; financial services, namely, providing trading market services in financial instruments for others, providing an electronic platform that enables multiple participants to execute transactions by accepting bids and offers posted by multiple participants; execution and matching services in financial instruments, brokerage services, exchange services in the nature of execution transactions in financial instruments and related services, providing pre- and post- trading information with respect to transactions in financial instruments, dissemination of market data, transaction reports and other information related to transactions in financial instruments