# 2026-11808: Exchange Offers Free Trial for Its New Paid Clock Service

2026-11808, Self-Regulatory Organizations; Cboe 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 2026-06-19).

- Canonical: https://policyrisk.com/federal-register/2026-11808
- As of: 2026-06-19
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-11808
- Title: Self-Regulatory Organizations; Cboe 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 35763
- Published: 2026-06-12
- Effective: 2026-05-18
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-06-19

## In one line

Exchange Offers Free Trial for Its New Paid Clock Service

## Summary

Cboe Exchange just rolled out a new Clock Service that helps users sync their time systems for better trading accuracy. Starting May 18, 2026, they’re charging fees for this service but also offering a free trial to get you started. This affects both members and non-members who want precise timing in their trading activities.

## Effects PRIA read

- Clock Service: $7,500/month: cost, high. If your firm subscribes to Cboe's Clock Service, the monthly fee is $7,500 starting May 18, 2026. The fee includes a single 1 Gbps physical port (for receiving the time signal only), the service is optional, and subscribers may cancel at any time.
- Optional Redundant Connection: $2,500/month: cost, high. Cboe offers an optional redundant Clock Service connection (an additional 1 Gbps physical port) for $2,500 per month. Firms may purchase one or multiple redundant connections to supplement the primary service.
- HATI One-Time Setup: $5,000 per Connection: cost, high. Cboe charges a one-time High-Accuracy Timing IP Core (HATI) licensing set-up fee of $5,000 for each physical connection when required (for participants that do not use a Safran White Rabbit-enabled switch). The Exchange states that if licensing is required for two connections, the one-time cost wou…
- 30-Day Free Trial for New Subscribers: benefit, high. First-time subscribers to Cboe Clock Service receive a free 30-day trial of the Clock Service fee beginning May 18, 2026. The trial does not waive the one-time HATI set-up fee or charges for any additional Clock Service connections.
- Single Subscription Covers All Eight Cboe Exchanges: benefit, medium. The Clock Service subscription can be used to receive time signals for the Exchange and its affiliated equities and options exchanges, meaning a subscriber can receive the service for all eight Cboe exchanges under the subscription. Cboe emphasizes this cross-exchange coverage in comparing its pric…

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## Sources
- [2026-11808 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/12/2026-11808/self-regulatory-organizations-cboe-exchange-inc-notice-of-filing-and-immediate-effectiveness-of-a)
- [2026-11808 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-12/pdf/2026-11808.pdf)

## Related
- [Previous: 2026-11807, Self-Regulatory Organizations; Cboe C2 Exchange, Inc.; Notice of Filing and Imm…](https://policyrisk.com/federal-register/2026-11807)
- [Next: 2026-11809, Self-Regulatory Organizations; Cboe BZX Exchange, Inc.; Notice of Filing and Im…](https://policyrisk.com/federal-register/2026-11809)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-11808 (as of 2026-06-19).