BOX Moves To Lift IBIT Options Limits to 1 Million Contracts

BOX Exchange has filed an immediately effective rule change to raise position and exercise limits for options on the iShares Bitcoin Trust ETF, better known by its ticker IBIT. According to the May 22 Federal Register notice, the exchange wants IBIT options to move to a 1,000,000-contract limit on the same side of the market, up from the standard 250,000-contract framework that applies under its current ETF position-limit rule.

BOX says the filing is based on a recently approved Nasdaq ISE proposal and argues that a higher cap would better match legitimate hedging and trading demand in one of the market’s most active crypto-linked ETF options products. The notice also says the exchange views the larger limit as consistent with other high-capacity ETF options where traders already operate with broader position flexibility.

For active derivatives traders, the practical effect is straightforward: larger limits can make it easier for institutions, market makers, and sophisticated directional or hedging accounts to scale IBIT options exposure without running into the old cap as quickly. That can support tighter quoting and more room for complex positioning, even though surveillance and margin controls remain in place.

Why it matters

Higher position limits can improve capacity in a fast-growing options product, especially for firms that use IBIT options to hedge crypto exposure or run larger volatility strategies.

What to watch next

Watch whether other venues move in the same direction and whether open interest and quoted depth in IBIT options continue to expand after the higher limit takes hold.