ISE Depth of Market Feed is a real-time data feed that provides the aggregated volume of all quotes and orders available at each of the top five price levels for options that trade on ISE.
This offering provides transparency beyond the BBO and helps subscribers improve trading efficiency.
ISE Depth of Market Feed is delivered using the FIX FAST (FIX Adapted for STreaming) information protocol. This product is one of the first market data offerings to use this innovative new standard, which reduces the bandwidth required to receive data and decreases the latency of transmission. ISE was an active member in the FIX Protocol Organization which developed the FAST protocol to encourage use of a common, efficient industry standard for market data. |