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SEC initiates review, Bitcoin ETF options quote granularity adjustment imminent
【BlockBeats】A proposed rule change by the Chicago Board Options Exchange has recently entered the SEC review process. On December 31, the SEC officially initiated review of Cboe’s submitted Rule 5.4 modification plan, which primarily involves adjusting the minimum quoting increment for the Cboe Mini Bitcoin US ETF Index Options (MBTX).
What exactly is being adjusted? In simple terms, it’s about refining pricing—options contracts with a transaction price below $3 will have a minimum quote size of $0.01; for those priced at $3 and above, the minimum will be set at $0.05. It sounds very technical, but the underlying logic is straightforward: by making pricing more granular, tightening bid-ask spreads, and reducing trading costs.
Cboe’s goal is clear—aligning with the quoting granularity standards of the BlackRock iShares Bitcoin Trust (IBIT) options. Once the rule change is implemented, liquidity and pricing efficiency for MBTX options trading are expected to improve significantly.
Currently, the SEC is soliciting public feedback, with the deadline for market participants to submit opinions set for January 21, 2026. If there are no major objections, this adjustment is likely to be approved subsequently, further promoting the standardized development of the Bitcoin derivatives market.