# 2026-12529: Nasdaq Quietly Erases Ghost Protocol From Rulebook

2026-12529, Self-Regulatory Organizations; The Nasdaq Stock Market LLC; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Eliminate Obsolete References to the Discontinued QIX Proprietary Protocol From The Exchange's Rulebook, is a Federal Register notice from Securities and Exchange Commission published 2026-06-23, effective 2026-06-10 (as of 2026-06-30).

- Canonical: https://policyrisk.com/federal-register/2026-12529
- As of: 2026-06-30
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-12529
- Title: Self-Regulatory Organizations; The Nasdaq Stock Market LLC; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Eliminate Obsolete References to the Discontinued QIX Proprietary Protocol From The Exchange's Rulebook
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 37444
- Published: 2026-06-23
- Effective: 2026-06-10
- Comments close: not stated
- Significant: no
- Touches household money: no
- Regulation identifier numbers: none
- Last updated: 2026-06-30

## In one line

Nasdaq Quietly Erases Ghost Protocol From Rulebook

## Summary

Nasdaq is cleaning house by removing old mentions of the QIX protocol, which they stopped using years ago, from their rulebook. This update affects traders and firms using Nasdaq’s systems but won’t cost anyone money or cause delays. The change is effective immediately, making Nasdaq’s rules clearer and up-to-date.

## Effects PRIA read

No economic effects identified for this document.

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## Sources
- [2026-12529 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/23/2026-12529/self-regulatory-organizations-the-nasdaq-stock-market-llc-notice-of-filing-and-immediate)
- [2026-12529 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-23/pdf/2026-12529.pdf)

## Related
- [Previous: 2026-12528, Self-Regulatory Organizations; Nasdaq PHLX LLC; Notice of Filing and Immediate…](https://policyrisk.com/federal-register/2026-12528)
- [Next: 2026-12530, Self-Regulatory Organizations; NYSE American LLC; Notice of Filing and Immediat…](https://policyrisk.com/federal-register/2026-12530)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-12529 (as of 2026-06-30).