The economics of IBIT options

IBIT dominates Bitcoin derivatives

IBIT dominates Bitcoin derivatives.

As of May 15, 2026, IBIT options capture 75% to 80% of total Bitcoin spot ETF options trading volume. This volume averages between 600,000 and 650,000 contracts daily. These contracts equal $2.7 billion to $3.0 billion in notional value. This daily volume exceeds the trading volume of the underlying IBIT ETF itself. FBTC is the second largest player, accounting for 11% of the volume, while GBTC holds 5%. On its first day of trading, IBIT options saw $1.9 billion in notional exposure from 354,000 contracts, which included 289,000 calls and 65,000 puts to create a call-to-put ratio of 4.4:1. Nasdaq placed these options in the top 1% of all products on their first day.

Metric (May 2026)	IBIT Value
Average Daily Options Volume	600,000 – 650,000 contracts
Daily Notional Volume	$2.7B – $3.0B
Total Open Interest (Contracts)	~7,000,000
Bitcoin AUM (Estimate)	$65,000,000,000

The scale of IBIT surpasses traditional assets. In early 2026, IBIT open interest hit $27.6 billion, which exceeded Deribit’s $26.9 billion. This milestone marks the point where a regulated US ETF surpassed the largest native Bitcoin derivative exchange. By May 15, 2026, the raw contract count of 7 million for IBIT dwarfed the 700,000 contracts for the GLD ETF. Liquidity is massive.

Weeklys and income strategies

Weekly expirations change the economics of Bitcoin. Cboe launched the BITVX index on March 23, 2026, which uses weekly Friday expirations of IBIT options to measure 30-day volatility. The calculation uses two maturities to bracket a 30-day target horizon. This index uses the proprietary VIX methodology to derive expected volatility directly from option prices. Institutional desks use these weeklys for income. They sell covered calls to harvest volatility.

BlackRock launched the iShares Bitcoin Premium Income ETF (BITA) on June 16, 2026, to target 15% to 25% annual yield. This fund writes calls against 25% to 35% of its NAV. This strategy competes with the NEOS Bitcoin High Income ETF, which holds $1.09 billion in assets and a 0.99% expense ratio, as well as the Roundhill Bitcoin Covered Call Strategy ETF and the YieldMax Bitcoin Option Income Strategy ETF. One problem exists. Heavy short-call supply can dampen price action during rallies. Market makers hedge these positions by selling the underlying ETF as price rises. This creates a mean-reverting force. You should observe these hedging flows closely.

By early 2026, IBIT held approximately 52% of total Bitcoin options open interest globally, representing $33 billion out of $65 billion. Calamos offers protection through products like CBOJ, which provides 100% downside protection, alongside CBXJ at 90% and CBTJ at 80%. As of September 11, 2026, the open interest for IBIT sits at 343,959 contracts. The put-call ratio is 0.57. Does the market prefer this stability over explosive growth?

Regulatory limits and market scale

Regulators must adjust to the growth. BOX Exchange filed a proposal on May 8, 2026, to increase IBIT position and exercise limits to 1,000,000 contracts. The current limit is 250,000 contracts. This increase responds to an ongoing increase in demand throughout 2025. The proposal follows a similar filing by Nasdaq ISE, LLC. IBIT currently qualifies for its 250,000 limit because its six-month trading volume exceeds 100 million shares. For the 180 days prior to February 11, 2026, IBIT had an average daily volume of 61,803,035 shares. This volume is higher than the 29,459,889 shares for EEM and 31,656,532 shares for FXI.

As of February 11, 2026, the total market capitalization for all Bitcoin exceeded $1.374 trillion, which means a 1,000,000-contract position equals only 0.278% of all Bitcoin outstanding. There were approximately 20.5 million Bitcoins in circulation. At a price of $66,938, a 1,000,000-contract position would represent 7.474% of the outstanding shares of IBIT. The market is growing fast.