# 2026-11804: NYSE Texas Adopts Standard Best-Execution Rule

2026-11804, Self-Regulatory Organizations; NYSE Texas, Inc.; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Adopt New Rule 11.5310 (Best Execution), is a Federal Register notice from Securities and Exchange Commission published 2026-06-12, effective 2026-05-29; PRIA reads it as touching household money (as of 2026-06-19).

- Canonical: https://policyrisk.com/federal-register/2026-11804
- As of: 2026-06-19
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-11804
- Title: Self-Regulatory Organizations; NYSE Texas, Inc.; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Adopt New Rule 11.5310 (Best Execution)
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 35715
- Published: 2026-06-12
- Effective: 2026-05-29
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-06-19

## In one line

NYSE Texas Adopts Standard Best-Execution Rule

## Summary

NYSE Texas just rolled out a new rule called 11.5310 to make sure brokers and firms always get the best prices when handling customer orders. This change helps protect customers by aiming for faster, smarter trades at the best market prices. The rule is effective immediately, so everyone involved in trading on NYSE Texas should get ready to follow it right away.

## Effects PRIA read

- Brokers Must Seek Best Market: benefit, medium. If you are a securities customer whose order is handled on NYSE Texas, brokers and firms must use "reasonable diligence" to find the best market and get you the most favorable price under prevailing market conditions. The rule lists five factors to consider (market character, transaction size/type,…
- No Hidden Third-Party Routing: benefit, medium. The rule bars brokers from inserting a third party between the customer and the best market in ways that conflict with the best execution duty. When a retail firm must use a broker's broker or another third party to get a better execution, the retail firm bears the burden of showing that using the…
- Customer-Directed Routes Limit Duty: cost, low. If you give an unsolicited instruction to route your order to a specific market, the broker is not required to look beyond that instruction to seek best execution, though the broker must still process your order promptly and per the order terms. If you direct your order to another broker-dealer tha…
- Broad Definition of 'Market' for Orders: benefit, low. The rule's supplementary material defines "market" broadly to include many types of venues (including exchange and non-exchange venues) so brokers must consider a wide set of trading venues when determining best execution. This clarification is meant to inform broker-dealers of the range of venues…
- Rule Harmonization Lowers Compliance Complexity: benefit, low. The Exchange states the new Rule 11.5310 is substantially similar to Nasdaq PHLX and NYSE rules and is intended to harmonize best execution standards across self-regulatory organizations. The Exchange says this will reduce burdens on Participants, Participant Firms, and Associated Persons who must…

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## Sources
- [2026-11804 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/12/2026-11804/self-regulatory-organizations-nyse-texas-inc-notice-of-filing-and-immediate-effectiveness-of)
- [2026-11804 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-12/pdf/2026-11804.pdf)

## Related
- [Previous: 2026-11803, Self-Regulatory Organizations; NYSE National, Inc.; Notice of Filing and Immedi…](https://policyrisk.com/federal-register/2026-11803)
- [Next: 2026-11805, Self-Regulatory Organizations; Nasdaq ISE, LLC; Notice of Filing and Immediate…](https://policyrisk.com/federal-register/2026-11805)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-11804 (as of 2026-06-19).