# 2026-12414: Cboe Tweaks Equity Options Opening Process for Global Hours

2026-12414, Self-Regulatory Organizations; Cboe Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Rule 5.31, is a Federal Register notice from Securities and Exchange Commission published 2026-06-22, effective 2026-06-16; PRIA reads it as touching household money (as of 2026-06-29).

- Canonical: https://policyrisk.com/federal-register/2026-12414
- As of: 2026-06-29
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-12414
- Title: Self-Regulatory Organizations; Cboe Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Rule 5.31
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 37189
- Published: 2026-06-22
- Effective: 2026-06-16
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-06-29

## In one line

Cboe Tweaks Equity Options Opening Process for Global Hours

## Summary

Cboe Exchange is updating its Rule 5.31 to improve how it starts trading for certain equity options during Global Trading Hours. This change affects traders who buy and sell these options early in the day and aims to make the opening process smoother and more efficient. The new rule took effect right away on June 16, 2026, with no extra costs involved.

## Effects PRIA read

- Opening Trigger Uses Any Market Quote: benefit, low. Cboe changed Rule 5.31 so the System will start an opening rotation for equity options during Global Trading Hours (GTH) based on the first disseminated transaction or quote in the underlying security on any equity market rather than only the primary market. This change to the trigger (deleting the…
- More Options Listed for Extended Hours: benefit, medium. Because the opening trigger now looks to quotes and trades on any equity market, Cboe can list options over equities that trade in extended hours on an equity market even if the equity's primary listing market does not trade during extended hours. That means investors may have more opportunity to t…
- Immediate Effect With No Added Costs: benefit, low. The Exchange filed this amendment to Rule 5.31 and it became effective immediately on June 16, 2026. The Exchange stated the change involved no extra costs and that the opening modification will apply the same way to all equity options listed for trading during GTH.

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## Sources
- [2026-12414 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/22/2026-12414/self-regulatory-organizations-cboe-exchange-inc-notice-of-filing-and-immediate-effectiveness-of-a)
- [2026-12414 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-22/pdf/2026-12414.pdf)

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- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-12414 (as of 2026-06-29).