# 2026-10831: Cboe C2 Aligns Open-Close Data Subscription Billing Terms

2026-10831, Self-Regulatory Organizations; Cboe C2 Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Its Fee Schedule To Clarify That Requests for Mid-Month Subscriptions and Ad-Hoc Historical Requests for Open-Close Data Will Be Prorated, is a Federal Register notice from Securities and Exchange Commission published 2026-06-01, effective 2026-05-26; PRIA reads it as touching household money (as of 2026-06-08).

- Canonical: https://policyrisk.com/federal-register/2026-10831
- As of: 2026-06-08
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-10831
- Title: Self-Regulatory Organizations; Cboe C2 Exchange, Inc.; Notice of Filing and Immediate Effectiveness of a Proposed Rule Change To Amend Its Fee Schedule To Clarify That Requests for Mid-Month Subscriptions and Ad-Hoc Historical Requests for Open-Close Data Will Be Prorated
- Type: Notice
- Agencies: Securities and Exchange Commission
- Citation: 91 FR 32469
- Published: 2026-06-01
- Effective: 2026-05-26
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-06-08

## In one line

Cboe C2 Aligns Open-Close Data Subscription Billing Terms

## Summary

Cboe C2 Exchange just updated its fee rules to make it clear that if you start a subscription or request historical Open-Close data partway through the month, you’ll only pay for the days you use. This change affects traders and data users who want flexible, fair pricing on mid-month or one-time data requests. The new prorated fees take effect immediately, so no surprises on your bill!

## Effects PRIA read

- Prorated Mid‑Month and Ad‑Hoc Data Fees: benefit, low. If you buy Cboe C2 Open‑Close data (End‑of‑Day, Ten‑Minute Intraday, or One‑Minute Intraday), mid‑month subscriptions and ad‑hoc historical requests for specific dates will be prorated so you only pay for the days you use. This clarification became effective upon filing on May 26, 2026 and applies…

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## Sources
- [2026-10831 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/01/2026-10831/self-regulatory-organizations-cboe-c2-exchange-inc-notice-of-filing-and-immediate-effectiveness-of-a)
- [2026-10831 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-01/pdf/2026-10831.pdf)

## Related
- [Previous: 2026-10830, Self-Regulatory Organizations; Cboe EDGX Exchange, Inc.; Notice of Filing and I…](https://policyrisk.com/federal-register/2026-10830)
- [Next: 2026-10832, Self-Regulatory Organizations; Cboe BZX Exchange, Inc.; Notice of Filing and Im…](https://policyrisk.com/federal-register/2026-10832)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-10831 (as of 2026-06-08).