FIX-3-13 is the specific protocol specification for the Financial Information eXchange (FIX) protocol. The FIX protocol is an open, electronic commuication standard developed by the FIX Trading Community to facilitate the exchange of information and trading instructions between financial institutions. FIX-3-13 is the latest version of the standard and includes new fields, streamlined message formats, and support for a variety of asset classes, including equities, options, futures, and foreign exchange. Additional features include enhanced scalability, enhanced speed, and support for multiple order types.