A system and interface for trading financial instruments. The system consists of an intermediary computer system that is operable to communicate with one or more trader terminals utilizing either a private line, a network or the Internet. The intermediary computer system is comprised of one or more processors and storage media. The intermediary computer system communicates with trader terminals and displays to the trader terminals a listing of financial instruments, and information related to such financial instruments, that are available for trading. The intermediary computer system periodically updates the option adjusted price of financial instruments as to provide the traders with a time period in which the price will remain stable and during which time the traders can confidently execute orders based on the then available price. A timer, which is constantly visible to traders using the electronic trading system, displays the amount of time remaining until the displayed adjusted prices will be updated. The intermediary computer system is also operable to communicate directly with selected traders or groups of traders in the form of directed messages to the trader terminals.