# 2026-22458: Four Exchanges, One Very Specific Report About Missed Liquidity

2026-22458, Self-Regulatory Organizations; Cboe Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Introduce Enhancements to the Missed Liquidity Report Offered as Part of the Cboe Timestamping Service, is a Federal Register notice from Securities and Exchange Commission published 2026-11-04, effective 2026-10-21; PRIA reads it as touching household money (as of 2026-11-05).

- Canonical: https://policyrisk.com/federal-register/2026-22458
- As of: 2026-11-05
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-22458
- Title: Self-Regulatory Organizations; Cboe Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Introduce Enhancements to the Missed Liquidity Report Offered as Part of the Cboe Timestamping Service
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 69616
- Published: 2026-11-04
- Effective: 2026-10-21
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-11-05

## In one line

Four Exchanges, One Very Specific Report About Missed Liquidity

## Summary

Cboe Exchange is upgrading its Missed Liquidity Report, part of the Cboe Timestamping Service, to give traders clearer and faster info about missed trading opportunities. This change helps traders better understand when their orders didn’t get filled, improving their market strategies. The new features are effective immediately, with no extra cost, making it a win for active traders and market pros.

## Effects PRIA read

- Missed Liquidity Report adds Auction data: benefit, medium. If you are a Cboe Member who subscribes to the Missed Liquidity Report, it will now include Complex Order Auction (COA) and Complex Automated Improvement Mechanism (C-AIM) events and a new price field. The report will show each price level at which options orders were executed during an Auction and…
- Report remains historical and recipient-only: benefit, low. The enhanced Missed Liquidity Report will continue to be a historical product delivered generally on a T+1 basis and will not provide real-time market data. The report contains only the Recipient Member's own data (other Members' information is anonymized and no other Member's specific resting orde…
- Enhancement is optional and fee status noted: mixed, low. The Missed Liquidity Report (with the new Auction fields) is an optional product available to any Member that chooses to subscribe; fees for reports are assessed based on the number of reports selected. The Exchange states that at this time it is not proposing any fee increases for the Cboe Timesta…

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## Sources
- [2026-22458 on federalregister.gov](https://www.federalregister.gov/documents/2026/11/04/2026-22458/self-regulatory-organizations-cboe-exchange-inc-notice-of-filing-and-immediate-effectiveness-of-a)
- [2026-22458 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-11-04/pdf/2026-22458.pdf)

## Related
- [Previous: 2026-22457, Self-Regulatory Organizations; National Securities Clearing Corporation; Notice…](https://policyrisk.com/federal-register/2026-22457)
- [Next: 2026-22459, Self-Regulatory Organizations; Cboe C2 Exchange, Inc.; Notice of Filing and Imm…](https://policyrisk.com/federal-register/2026-22459)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-22458 (as of 2026-11-05).