The industry standard in connectivity.
Financial Information eXchange (FIX) is a vendor-neutral standard message protocol that defines an electronic message exchange for communicating securities transactions between two parties. FIX is a standard format used today by a majority of U.S. firms in the optoins securities business.
NASDAQ supports the FIX protocol version 4.2, 4.1 and 4.0.
Technical Specifications can be accessed on the Options Specifications page.
Features: Supported Messages
- Order entry, modify, cancel
- Unsolicited messages (UM), including order status and execution reports
- Through approved direct connectivity or extranet providers.
- Through a Service Bureau that is connected to NASDAQ via FIX