BOX Exchange extends modified options quote-width limits through December 18, 2026
BOX Exchange is temporarily revising market maker bid-ask differential limits for a broad set of options classes under Rule 8040. The changes remain in effect through December 18, 2026 unless the exchange withdraws them earlier, covering symbols with maximum valid differentials of $40.00, $20.00 and $10.00.
Highlights
- BOX Exchange extends temporary maximum bid-ask differentials of $40.00, $20.00, and $10.00 by symbol on select options classes through December 18, 2026.
- Symbols such as AZO, BKNG, CAR, KORU, MELI, and MUU receive the $40.00 maximum bid-ask spread, while ABNB and IVV are capped at $10.00.
- Market makers benefit from increased quote-width flexibility, affecting liquidity management for high-priced and volatile options until the temporary limits expire or are withdrawn.
Temporary quote-width changes by symbol
As announced by BOX Exchange, the temporary schedule sets the widest maximum valid bid-ask differential at $40.00 for AZO, BKNG, CAR, KORU, MELI and MUU.A larger group of options classes receives a $20.00 maximum valid bid-ask differential, including names such as AGX, ALAB, AMDL, APP, ASML, AVAV, MDY, MEDP, MKL, MLM, MPWR and MSCI, along with dozens of other symbols ranging from AXON and BLK to TSLA, UNH and WDC. ABNB and IVV are listed with a narrower $10.00 maximum valid bid-ask differential under the temporary measure.
Market-making and trading impact
The revised limits apply to market maker quote-width requirements and give participants more flexibility in quoting the affected option classes during the effective period. The notice states the modified bid-ask differentials stay in place through December 18, 2026, unless BOX withdraws them before that date.Such exchange adjustments typically affect how liquidity providers manage quotes in higher-priced or more volatile options classes. For traders, the update signals the maximum spread thresholds BOX is permitting across the named symbols while the temporary rule setting remains active.
Our earlier report on the SEC’s temporary regulatory path for tokenized stocks explained how the move revived expectations for blockchain-based equity issuance and trading, while lifting shares of several crypto-linked financial firms. It also highlighted why tokenization could matter for market infrastructure—through fractional ownership, broader access, and tighter integration with algorithmic trading—potentially benefiting platforms and exchanges positioned to support these new products.
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