# 2026-11807: Cboe Adds a Price Tag to Its New Exchange Clock

2026-11807, Self-Regulatory Organizations; Cboe C2 Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Adopt Fees for Its New Clock Service, is a Federal Register notice from Securities and Exchange Commission published 2026-06-12, effective 2026-05-18; PRIA reads it as touching household money (as of 2026-10-28).

- Canonical: https://policyrisk.com/federal-register/2026-11807
- As of: 2026-10-28
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-11807
- Title: Self-Regulatory Organizations; Cboe C2 Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Adopt Fees for Its New Clock Service
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 35726
- Published: 2026-06-12
- Effective: 2026-05-18
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-10-28

## In one line

Cboe Adds a Price Tag to Its New Exchange Clock

## Summary

Cboe C2 Exchange just launched a new Clock Service that helps users sync their time systems with the Exchange’s for better accuracy. Starting May 18, 2026, they’re rolling out fees for this service but also offering a free trial to try it out. This affects anyone who wants precise timing data, whether they’re Exchange members or not.

## Effects PRIA read

- Monthly Clock Service subscription fee: cost, high. If you subscribe to Cboe's Clock Service, the Exchange charges $7,500 per month for the service. That monthly fee includes a single 1 Gbps physical port (which must be used only to receive the Clock Service signal and cannot be used for order routing), the service is optional, available to Members…
- Optional redundant connection monthly fee: cost, high. If you want a backup Clock Service connection, Cboe charges $2,500 per month for each redundant 1 Gbps physical port. Firms may purchase multiple secondary connections, and monthly fees are prorated for mid-month subscriptions.
- One-time HATI licensing setup fee: cost, medium. Firms that do not use Safran White Rabbit switches must pay a one-time High-Accuracy Timing IP Core (HATI) licensing setup fee of $5,000 for each physical connection. The one-time fee is charged per connection (for example, two connections would incur $10,000) and is not covered by any free trial.
- 30-day free trial for new subscribers: benefit, low. New subscribers who have never before subscribed to Cboe Clock Service receive a free 30-day trial that waives the $7,500 monthly Clock Service fee for the first 30 days. The free trial applies only to the Clock Service fee and does not waive the one-time $5,000 HATI setup fee or any fees for addit…

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## Sources
- [2026-11807 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/12/2026-11807/self-regulatory-organizations-cboe-c2-exchange-inc-notice-of-filing-and-immediate-effectiveness-of-a)
- [2026-11807 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-12/pdf/2026-11807.pdf)

## Related
- [Previous: 2026-11806, Self-Regulatory Organizations; Nasdaq GEMX, LLC; Notice of Filing and Immediate…](https://policyrisk.com/federal-register/2026-11806)
- [Next: 2026-11808, Self-Regulatory Organizations; Cboe Exchange, Inc.; Notice of Filing and Immedi…](https://policyrisk.com/federal-register/2026-11808)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-11807 (as of 2026-10-28).