The U.S. Securities and Exchange Commission (SEC) has approved a pivotal rule change for the Nasdaq ISE, dramatically raising the position and exercise limits for options on BlackRock’s spot Bitcoin ETF (IBIT). The new limit jumps from 250,000 to 1 million contracts on a same-side basis, marking a significant expansion in the Bitcoin ETF options market.
This landmark approval directly addresses a key demand from institutional investors. Previously, a cap of 250,000 contracts limited large-scale hedging and trading strategies. Now, with the limit raised to 1 million contracts, market participants gain far greater flexibility. The same-side basis rule applies the limit separately to all call options and all put options combined, designed to prevent market manipulation while allowing for substantial market depth.
BlackRock’s IBIT has become a dominant force in the spot Bitcoin ETF space, attracting billions in assets under management since its launch. The higher position limit directly supports its growing liquidity. Options traders can now execute larger block trades without immediately hitting regulatory ceilings, fostering more efficient price discovery and potentially narrowing bid-ask spreads.
By raising the IBIT option position limit, the SEC injects a new level of depth into the market. Market makers can provide tighter quotes for larger orders, reducing slippage for institutional clients and encouraging the creation of more complex strategies. This development aligns with the broader trend of Bitcoin becoming a mainstream asset class.
The timeline of key events includes: January 2024 SEC approval of spot Bitcoin ETFs, March 2024 Nasdaq ISE filing the proposal, June 2024 SEC seeking public comment, and September 2024 final approval. The raised limit signals strong potential for institutional adoption, enabling pension funds, endowments, and insurance companies to execute large trades and implement sophisticated risk management strategies.
Market analysts view this as a positive development. Bloomberg ETF analyst James Seyffart noted the move aligns with the maturation of the crypto ETF ecosystem, attracting more professional capital. The SEC’s decision sets a precedent that could lead to similar proposals for other Bitcoin ETFs like Fidelity’s FBTC.
Meanwhile, BlackRock’s digital assets franchise generated $42 million in Q1 2026 fee revenue, representing 1.75% of its total ETF fee base despite holding only 1.11% of ETF AUM. Digital assets accounted for nearly $60.7 billion of BlackRock’s $5.48 trillion in ETF assets. The crypto products run at roughly 24.8 basis points annualized, compared with about 17.2 basis points for the ETF complex overall, highlighting crypto’s higher-fee structure.
However, the first quarter exposed dependency on asset prices, with BlackRock recording an $18.7 billion negative market move in digital assets, pulling AUM down from $78.4 billion to $60.6 billion. As of April 29, IBIT held roughly $61.7 billion, ETHA over $7 billion, and ETHB $594.5 million, totaling about $68.8 billion across three flagship US crypto products.
Competition is intensifying: Morgan Stanley launched MSBT with a 0.14% sponsor fee, 11 basis points below IBIT’s 0.25%, while Charles Schwab announced direct Bitcoin and Ethereum trading for retail clients at 75 basis points per trade. Goldman Sachs filed for a Bitcoin Premium Income ETF. Despite these moves, BlackRock’s scale advantage and distribution depth remain formidable, with $13.895 trillion in firm-wide AUM and unmatched liquidity in IBIT.
