This proposal from the High Performance Working Group entails the use of a FIX Trading Community designed Simple Binary Encoding (SBE) to produce fast and compact encodings of FIX messages. SBE provides different characteristics than other binary encodings. It is optimized for low latency.

This new FIX binary encoding complements the existing only binary encoding developed in 2005 (FAST) which had a focus on reducing bandwidth utilization for market data. In addition, the encoding is also defined and controlled within the FIX Trading Community, in contrast to the binary encodings proposals to encode FIX with Google Protocol Buffers and ASN.1.

Issues for corrections and proposed enhancements may be entered for future versions within the SBE GitHub project: https://github.com/FIXTradingCommunity/fix-simple-binary-encoding

The proposed technical standard for Simple Binary Encoding of FIX is following the technical standards review process described in the document found here.

Version 2.0 Release Candidate 2

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Simple Binary Encoding - Technical Proposal - v2 RC2 907.49 KB 2135 downloads August 28, 2019

Technical proposal for SBE v2 RC2 ...
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Simple Binary Encoding - Technical Specification - v2 RC2 511.17 KB 1350 downloads August 28, 2019

Technical Specification documentation for SBE v2 RC2 ...

    Version 2.0 Release Candidate 1

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    Simple Binary Encoding - Technical Proposal - v2 RC1 348.51 KB 406 downloads August 17, 2018

    Technical proposal documentation for Simple Binary Encoding (SBE) Technical Proposal. ...
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    Simple Binary Encoding - Technical Specification - v2 RC1 982.59 KB 1466 downloads August 17, 2018

    Technical Specification Documentation for SBE v2 RC1 ...

      Version 1.0 Standard

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      Simple Binary Encoding - Technical Specification - Final 163.04 KB 1241 downloads November 22, 2020

      Simple Binary Encoding Technical Specification v1.0 Updated 7/27/2018 and November 2020 ...
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      Simple Binary Encoding XML Schema (XSD) - Final 14.09 KB 342 downloads November 22, 2020

      Simple Binary Encoding XML Schema (XSD) files for Final 1.0 ...
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      Simple Binary Encoding - Technical Specification - Changes 1,008.66 KB 383 downloads November 21, 2020

      Simple Binary Encoding - Technical Specification V1.0 - Changes to Errata July 2018 ...
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      Simple Binary Encoding - Technical Proposal - Final Errata 75.57 KB 115 downloads November 20, 2020

      Simple Binary Encoding - Technical Proposal V1.0 - Final with Errata November 2020 ...
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      Simple Binary Encoding - Technical Proposal - Final 73.72 KB 511 downloads September 15, 2017

      Simple Binary Encoding - Technical Proposal Version 1.0 - Final ...

        Version 1.0 Draft Standard

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        Simple Binary Encoding XML Schema (XSD) - Draft Standard 14.10 KB 189 downloads August 3, 2016

        Simple Binary Encoding XML Schema (XSD) files for Draft Standard 1.0. The schema is also available at http://fixprotocol.io/2016/sbe/ ...
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        Simple Binary Encoding Specification - Draft Standard v1.0 1.09 MB 248 downloads July 29, 2016

        Simple Binary Encoding Specification - Draft Standard v1.0. ...

          Version 1.0 Release Candidate 4

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          Simple Binary Encoding XML Schema (XSD) - Release Candidate 4 14.60 KB 203 downloads March 10, 2016

          Simple Binary Encoding XML Schema (XSD) files for Release Candidate 4. ...
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          Simple Binary Encoding Release Candidate 4 - Technical Proposal 630.19 KB 133 downloads March 10, 2016

          Simple Binary Encoding Technical Standards Proposal submission for Release Candidate 4. ...
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          Simple Binary Encoding Specification - Release Candidate 4 1.26 MB 188 downloads March 10, 2016

          Simple Binary Encoding Specification - Release Candidate 4. ...

            Version 1.0 Release Candidate 3

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            Simple Binary Encoding XML Schema (XSD) - Release Candidate 3 13.90 KB 92 downloads March 8, 2017

            Simple Binary Encoding XML Schema (XSD) files for Release Candidate 3. ...
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            Simple Binary Encoding Release Candidate 3 - Technical Proposal 443.82 KB 67 downloads March 8, 2017

            Simple Binary Encoding Technical Standards Proposal submission for Release Candidate 3. ...
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            Simple Binary Encoding Specification - Release Candidate 3 1.26 MB 76 downloads March 8, 2017

            Simple Binary Encoding Specification - Release Candidate 3. ...

              Version 1.0 Release Candidate 2

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              Simple Binary Encoding Release Candidate 2 - Technical Proposal 551.04 KB 254 downloads March 9, 2017

              Simple Binary Encoding Technical Standards Proposal submission for Release Candidate 2. ...
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              Simple Binary Encoding XML Schema (XSD) - Release Candidate 2 17.00 KB 373 downloads March 9, 2017

              Simple Binary Encoding XML Schema (XSD) files for Release Candidate 2 ...
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              Simple Binary Encoding Specification - Release Candidate 2 1.22 MB 385 downloads March 8, 2017

              Simple Binary Encoding Specification - Release Candidate 2 ...

                Version 1.0 Release Candidate 1

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                Simple Binary Encoding Specification - Release Candidate 1 497.44 KB 101 downloads March 9, 2017

                Simple Binary Encoding Specification - Release Candidate 1. ...
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                Simple Binary Encoding Release Candidate 1 - Technical Proposal 101.21 KB 69 downloads March 9, 2017

                Simple Binary Encoding Technical Standards Gap Analysis submission for Release Candidate 1. ...