# 2026-22751: Cboe Rewrites Its Definition of a Clearing Corporation

2026-22751, Self-Regulatory Organizations; Cboe Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend the Definition of Clearing Corporation in its Rules and Make Corresponding Changes Throughout its Rules, is a Federal Register notice from Securities and Exchange Commission published 2026-11-09, effective 2026-10-23; PRIA reads it as touching household money (as of 2026-11-11).

- Canonical: https://policyrisk.com/federal-register/2026-22751
- As of: 2026-11-11
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-22751
- Title: Self-Regulatory Organizations; Cboe Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend the Definition of Clearing Corporation in its Rules and Make Corresponding Changes Throughout its Rules
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 70928
- Published: 2026-11-09
- Effective: 2026-10-23
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-11-11

## In one line

Cboe Rewrites Its Definition of a Clearing Corporation

## Summary

Cboe Exchange is updating its rules to change how it defines a Clearing Corporation and tweaking related rules, including how trading units work. This affects traders and firms using Cboe’s platform, making the rules clearer and more up-to-date. The changes took effect right away on October 23, 2026, with no new fees involved.

## Effects PRIA read

- Exchange rules now clearing-agency neutral: benefit, medium. The Exchange changed the definition of “Clearing Corporation” so it means the clearing agency registered under Section 17A of the Securities Exchange Act that issues and clears the applicable option. This update explicitly accommodates options cleared by The Options Clearing Corporation (OCC), Cboe…
- Letters of guarantee tied to specific clearing membership: cost, medium. The Exchange revised Rule 3.61 so letters of guarantee and authorization a Clearing Trading Permit Holder (Clearing TPH) files with the Exchange are tied to that Clearing TPH's membership at the specific Clearing Corporation to which the letters relate. If a Clearing TPH is suspended or terminated…
- Clarification on who sets unit of trading: mixed, low. The Exchange updated Rule 5.2 to clarify that, in certain instances, the Exchange may establish the unit of trading for an option rather than the applicable Clearing Corporation, as set forth in the Exchange and Clearing Corporation rules. The change aligns Rule 5.2 with the Exchange's and Clearing…

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## Sources
- [2026-22751 on federalregister.gov](https://www.federalregister.gov/documents/2026/11/09/2026-22751/self-regulatory-organizations-cboe-exchange-inc-notice-of-filing-and-immediate-effectiveness-of-a)
- [2026-22751 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-11-09/pdf/2026-22751.pdf)

## Related
- [Previous: 2026-22749, Daxor Corporation](https://policyrisk.com/federal-register/2026-22749)
- [Next: 2026-22752, Self-Regulatory Organizations; Investors Exchange LLC; Notice of Filing and Imm…](https://policyrisk.com/federal-register/2026-22752)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-22751 (as of 2026-11-11).