--- title: "Appendix G: Rule80A (aka OrderCapacity) Usage by Market – FIX 4.1 – FIX Dictionary – Onix Solutions" description: "Appendix G: Rule80A (aka OrderCapacity) Usage by Market – FIX 4.1 – FIX Dictionary – Onix Solutions" --- ![Dictionary icon](https://www.onixs.biz/hubfs/SIC_website_2020/images/interface/img-icon-book.svg) # Appendix G: Rule80A (aka OrderCapacity) Usage by Market – FIX 4.1 – FIX Dictionary | Messages by MsgType \| Messages by Name \| Fields by Tag \| Fields by Name \| FIX 4.1 \| Home Appendix G Rule80A (aka OrderCapacity) Usage by Market Note that the name of the Rule80A <47> field is changing to 'OrderCapacity' as Rule80A is a very US marketspecific term. Other world markets need to convey similar information, however, often a subset of the US values. This appendix documents the market-specific usage of this field. United States Listed Equity Markets: Rule80A’s values and usage details are documented in SEC Rule11Ac1-1/4. Note the purpose behind the rule is to restrict prices from rising or falling too fast providing more stability in the market. See Investments by Sharpe, 6th edition p. 50. Indicates the order type upon which exchange Rule 80A is applied. The following values are valid and applicable when using FIX to communicate with the New York Stock Exchange (NYSE) or other US listed equity exchanges per the SuperDOT Notification document. The values and usage details when used for US trading are documented in SEC Rule11Ac1-1/4. Valid values: A = Agency single order B = Short exempt transaction (refer to A type) C = Program Order, non-index arb, for Member firm/org D = Program Order, index arb, for Member firm/org E = Short Exempt Transaction for Principal (was incorrectly identified in the FIX spec as "Registered Equity Market Maker trades") F = Short exempt transaction (refer to W type) H = Short exempt transaction (refer to I type) I = Individual Investor, single order J = Program Order, index arb, for individual customer K = Program Order, non-index arb, for individual customer L = Short exempt transaction for member competing market-maker affiliated with the firm clearing the trade (refer to P and O types) M = Program Order, index arb, for other member N = Program Order, non-index arb, for other member O = Proprietary transactions for competing market-maker that is affiliated with the clearing member (was incorrectly identified in the FIX spec as "Competing dealer trades") P = Principal R = Transactions for the account of a non-member competing market-maker (was incorrectly identified in the FIX spec as "Competing dealer trades") S = Specialist trades T = Competing dealer trades U = Program Order, index arb, for other agency W = All other orders as agent for other member X = Short exempt transaction for member competing market-maker not affiliated with the firm clearing the trade (refer to W and T types) Y = Program Order, non-index arb, for other agency Z = Short exempt transaction for non-member competing market-maker (refer to A and R types) Japanese Equity Markets: Used to specify whether order is Agency or Principal. Valid values: A = Agency single order P = Principal Other Markets: All or a subset of the Rule80A (aka OrderCapacity) field values defined in the field reference may be applicable for other markets. Future markets will be included in this section as they are defined and brought forward to the FIX Technical Committee. | | --- | | ![](https://www.onixs.biz/hs-fs/hubfs/fix-dictionary/img/spacer.gif?height=5&name=spacer.gif) | - Follow OnixS - [Follow us on Twitter ](https://twitter.com/onixsbiz) - [Connect with us on LinkedIn ](https://www.linkedin.com/company/onix-solutions/) We track how people interact with our online web content and resources, and some of that tracking involves storing cookies on your device. By continuing to use our site you accept that you agree to this. For more details see our [Cookie usage, and Data Privacy and Protection Policies](https://www.onixs.biz/cookies-and-privacy.html). [Ok](https://www.onixs.biz/fix-dictionary/4.1/app_g.html#) [OnixS ](https://www.onixs.biz/) Menu --- --- [OnixS ](https://www.onixs.biz/) ### Search the site Search