# 2026-22957: Exchange Scrubs Rules for Order-Entry Protocol It Never Launched

2026-22957, Self-Regulatory Organizations; Nasdaq PHLX LLC; Notice of Filing and Immediate Effectiveness of a Proposal To Amend Equity 4 To Remove All References to the CORE FIX Order Entry Protocol, is a Federal Register notice from Securities and Exchange Commission published 2026-11-12, effective 2026-10-30; PRIA reads it as touching household money (as of 2026-11-12).

- Canonical: https://policyrisk.com/federal-register/2026-22957
- As of: 2026-11-12
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-22957
- Title: Self-Regulatory Organizations; Nasdaq PHLX LLC; Notice of Filing and Immediate Effectiveness of a Proposal To Amend Equity 4 To Remove All References to the CORE FIX Order Entry Protocol
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 72929
- Published: 2026-11-12
- Effective: 2026-10-30
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-11-12

## In one line

Exchange Scrubs Rules for Order-Entry Protocol It Never Launched

## Summary

Nasdaq PHLX is officially wiping out all mentions of the CORE FIX order entry protocol from its rules because the plan to launch it got pushed back and now won’t happen. This change affects traders and firms using the Exchange’s system, but there’s no cost impact or new deadlines to worry about. The update is effective immediately, keeping things clear and simple for everyone.

## Effects PRIA read

- CORE FIX References Deleted: benefit, low. On October 30, 2026, Nasdaq PHLX filed a rule change to remove all references to the CORE FIX order entry protocol from Equity 4. The deleted references are located in Equity 4, Rules 3100, 3301A, 3301B, and 3307, and the Exchange states it is abandoning plans to deploy CORE FIX because Participant…
- Existing Protocols Remain Available: benefit, low. The Exchange will continue to offer the existing order entry protocols OUCH, RASH, FLITE, and FIX and says the rule change will not alter the operation of the market, the treatment of orders, or the rights or obligations of Participants. The filing was submitted on October 30, 2026 and became effec…

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## Sources
- [2026-22957 on federalregister.gov](https://www.federalregister.gov/documents/2026/11/12/2026-22957/self-regulatory-organizations-nasdaq-phlx-llc-notice-of-filing-and-immediate-effectiveness-of-a)
- [2026-22957 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-11-12/pdf/2026-22957.pdf)

## Related
- [Previous: 2026-22956, Self-Regulatory Organizations; New York Stock Exchange LLC; Notice of Filing an…](https://policyrisk.com/federal-register/2026-22956)
- [Next: 2026-22958, Self-Regulatory Organizations; KalshiEX LLC; Notice of Filing and Immediate Eff…](https://policyrisk.com/federal-register/2026-22958)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-22957 (as of 2026-11-12).