# 2026-16279: IEX Updates Limit Up Rules to Skip Order Cancellations in Halts

2026-16279, Self-Regulatory Organizations; Investors Exchange LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Amend Rule 11.280 (Limit Up-Limit Down Plan and Trading Halts on the Exchange) To Reflect That IEX Will Not Cancel Outstanding Orders During a Regulatory Halt or Operational Halt in Anticipation of the SIP Implementation of the New Regulatory Halt Rules, is a Federal Register notice from Securities and Exchange Commission published 2026-08-11, effective 2026-07-29; PRIA reads it as touching household money (as of 2026-08-18).

- Canonical: https://policyrisk.com/federal-register/2026-16279
- As of: 2026-08-18
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-16279
- Title: Self-Regulatory Organizations; Investors Exchange LLC; Notice of Filing and Immediate Effectiveness of Proposed Rule Change To Amend Rule 11.280 (Limit Up-Limit Down Plan and Trading Halts on the Exchange) To Reflect That IEX Will Not Cancel Outstanding Orders During a Regulatory Halt or Operational Halt in Anticipation of the SIP Implementation of the New Regulatory Halt Rules
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 51812
- Published: 2026-08-11
- Effective: 2026-07-29
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-08-18

## In one line

IEX Updates Limit Up Rules to Skip Order Cancellations in Halts

## Summary

No summary available.

## Effects PRIA read

- IEX will not auto-cancel orders in Regulatory Halts: benefit, low. During a Regulatory Halt the Exchange will not accept new orders and will keep orders already on the IEX Order Book rather than canceling them. You (the submitting User) may cancel your own orders during the Regulatory Halt, and the Exchange will re-open the security and begin accepting orders when…
- Operational Halts: orders generally retained, but may be cancelled: mixed, low. During an Operational Halt the Exchange will generally not accept new orders and will keep outstanding orders on the Order Book but make them unavailable for trading; submitting Users may cancel their own orders. However, IEX may decide to cancel all outstanding orders during an Operational Halt ba…
- Rule change made operative upon filing: benefit, low. IEX filed the proposed rule change on July 29, 2026 and asked that it become operative on August 10, 2026 to align with SIP changes. The Commission waived the 30-day operative delay and designated the proposal operative upon filing, making the change effective upon the filing date.

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## Sources
- [2026-16279 on federalregister.gov](https://www.federalregister.gov/documents/2026/08/11/2026-16279/self-regulatory-organizations-investors-exchange-llc-notice-of-filing-and-immediate-effectiveness-of)
- [2026-16279 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-08-11/pdf/2026-16279.pdf)

## Related
- [Previous: 2026-16278, Self-Regulatory Organizations; Texas Stock Exchange LLC; Notice of Filing and I…](https://policyrisk.com/federal-register/2026-16278)
- [Next: 2026-16280, Self-Regulatory Organizations; Fixed Income Clearing Corporation; Notice of Des…](https://policyrisk.com/federal-register/2026-16280)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-16279 (as of 2026-08-18).