2026-20404NoticeWallet

Cboe Caps Short Options Spreads at $5, Long at $15

Published Date: 10/6/2026

Notice

Summary

Cboe BZX Exchange is updating its rules for Market Makers by setting a $5 max bid/ask spread for options expiring in 270 days or less, and a $15 max spread for options expiring later. This change helps keep trading fair and clear for investors and traders. The new rule is effective immediately, so Market Makers need to adjust their quotes right away.

Analyzed Economic Effects

2 provisions identified: 1 benefits, 1 costs, 0 mixed.

New $5 / $15 quote-width caps

Market Makers on BZX Options must follow new maximum bid/ask differentials: $5 for option series expiring in 270 days or less, and $15 for option series expiring in more than 270 days. These tiered caps apply uniformly to all Market Makers on BZX Options based on time to expiration.

Intended improvement in market quality

The Exchange states the tiered $5 (≤270 days) and $15 (>270 days) bid/ask caps will improve market quality by providing investors with more meaningful execution opportunities and contributing to more efficient price discovery. The rule is intended to align quote widths with differing liquidity for short- and long-dated options.

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Key Dates

Effective Date
Published Date
9/24/2026
10/6/2026

Department and Agencies

Department
Independent Agency
Agency
Securities and Exchange Commission
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