Super message

Super message

See: Autex

Autex

An electronic network allowing broker-dealers to communicate with each other easily when they receive orders to buy or sell a large block of securities. Autex allows broker-dealers to find a better, or at least a similar, counter-offer from another broker-dealer. This allows them to transact with other broker-dealers rather than automatically sending the block to the market maker, who is obliged to fill the order if need be. Autex is less commonly called the super message.