BZX Exchange Updates Historical Data Fee Proration Policy
Published Date: 6/1/2026
Notice
Summary
Cboe BZX Exchange is updating 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 time you use. This change affects traders and data users who buy these services and takes effect immediately, helping everyone pay fair prices without surprises.
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
Mid‑Month Subscription Fees Prorated
If you start a subscription mid-month for any End-of-Day (EOD) Open-Close Data, Ten-Minute Intraday Open-Close Data, or One-Minute Intraday Open-Close Data, the Exchange will prorate the subscription fee so you only pay for the portion of the month you use. This clarification was filed on May 19, 2026 and became effective immediately.
Ad‑Hoc Historical Data Fees Prorated
If you request ad-hoc historical Open-Close Data (EOD, Ten-Minute Intraday, or One-Minute Intraday) for specific dates, the Exchange will prorate the fee for those historical file requests so you pay only for the requested period. The Exchange filed this clarification on May 19, 2026 and it is effective immediately.
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Previous: 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
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