An electronic order-routing system used by NYSE member firms to send market and limit orders to the NYSE. It has been enhanced to support all Hybrid Market order types.
Basically , this electronic system that increases order efficiency by routing orders for listed securities directly to a specialist on the trading floor, instead of through a broker.
Also known as “SuperDOT.”
The DOT system is used by the New York Stock Exchange for small order entries, limit orders, and basket and program trades.