BlackRock's Bitcoin ETF Reaches Significant Milestone, Solidifying Crypto's Mainstream Presence

A notable development occurred on Friday, indicating the accelerating institutionalization of the bitcoin market, which has been driven by individual investors for years. This is due to the growth of options linked to BlackRock's bitcoin exchange-traded fund (ETF), IBIT, which have become slightly larger on Nasdaq than the total bitcoin options trading on the offshore platform Deribit. It is particularly striking that IBIT options have closed the gap with Deribit's bitcoin options market in just two years, despite Deribit's head start since 2016. On Friday, the dollar value of open IBIT options contracts on Nasdaq, also known as open interest, was $27.61 billion, slightly higher than the $26.90 billion in Deribit's bitcoin options, according to data from Volmex. This milestone signifies that the regulated, institutional-grade bitcoin investment and derivatives infrastructure in the US is no longer secondary to the offshore market. Moreover, a thriving, regulated market in the US could encourage more Wall Street institutions to explore digital assets, ultimately leading to more mature price discovery. Deribit's Global Head of Retail Sales and Business, Sidrah Fariq, views IBIT's rise as a positive development for the broader crypto derivatives ecosystem. 'US retail cannot easily access platforms like Deribit, so iShares Bitcoin Trust (IBIT) options provide them with direct access to regulated leverage and options exposure. This is further supported by the current macro environment, which drives demand for hedging and options strategies,' Fariq told CoinDesk. Options are derivative contracts that give the purchaser the right to buy or sell the underlying asset at a predetermined price at a later date. Analysts use open interest as a measure of market size and participation, with higher open interest indicating a deeper and more liquid market. Traders use options to hedge existing positions, speculate on price direction, and generate additional income on coin or ETF holdings. One popular income-generating strategy involving IBIT ETF and IBIT options is the covered call strategy, which allows investors to profit from BTC's implied volatility by simultaneously holding the ETF and shorting IBIT calls at levels above the ETF's current market price. The two markets, though now matching each other in scale, are positioned differently, revealing a lot about trader sentiment in each. According to Volmex, the bulk of open interest in IBIT call options points to expectations of an ETF rally to levels equivalent to BTC trading at $109,709 in the near-term, roughly 41% higher than the current market price. Positioning in Deribit options is bullish but slightly measured, suggesting expectations of a rally to $106,000. 'Onshore call open interest is concentrated roughly 4 percentage points further out-of-the-money than offshore, and the onshore average delta is slightly lower. This is consistent with onshore flow being dominated by retail upside speculation and systematic call overwriting programs,' Volmex said in a report. ETF holders are more patient, with options having expiry dates and contracts being settled depending on where IBIT or spot BTC is trading at that time. Analysis of activity across both markets suggests that, on average, October 2026 expiries are preferred in IBIT, while August expiries dominate on Deribit. Lastly, IBIT's implied volatility is higher than the implied volatility derived from Deribit's BTC options, which Volmex attributes to a structural quirk: Because ETF holders cannot easily short bitcoin directly, they buy put options as their only available hedge, keeping IBIT's implied volatility slightly elevated. All things considered, IBIT's rapid rise in the options market is striking and now appears to rival Deribit in scale. However, the two are not direct substitutes, as IBIT options primarily cater to regulated, onshore investors accessing bitcoin exposure through traditional brokerage channels, while Deribit remains the go-to platform for global investors. 'I don’t see this as competition. If anything, it expands the market. As more participants get comfortable trading options via IBIT, it ultimately feeds into the broader ecosystem, and venues like Deribit benefit from increased sophistication and flow,' Fariq said.