BlackRock's Bitcoin ETF Achieves Major Milestone, Solidifying Crypto's Mainstream Status

A significant development occurred on Friday, highlighting the rapid institutionalization of the bitcoin market, which has long been driven by individual investors. This shift is evident in the growth of options linked to BlackRock's bitcoin exchange-traded fund (ETF), IBIT, which have surpassed the total bitcoin options trading on the offshore platform Deribit. Notably, IBIT options have bridged the gap with Deribit's bitcoin options market in just two years, despite Deribit's six-year head start. On Friday, the open interest in IBIT options contracts on Nasdaq reached $27.61 billion, slightly exceeding the $26.90 billion in Deribit's bitcoin options, according to data from Volmex. This milestone signifies that the US-based, regulated bitcoin investment and derivatives infrastructure is no longer secondary to the offshore market. The emergence of a thriving, regulated market in the US may encourage more Wall Street institutions to explore digital assets, ultimately leading to more mature price discovery. Sidrah Fariq, Deribit's Global Head of Retail Sales and Business, views IBIT's rise as a positive development for the broader crypto derivatives ecosystem. 'US retail investors can't 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 stated. Options are derivative contracts that grant the purchaser the right to buy or sell an 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 utilize options to hedge existing positions, speculate on price direction, and generate 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 holding the ETF and shorting IBIT calls at levels above the ETF's current market price. The two markets, though similar in scale, reveal distinct differences in trader sentiment. According to Volmex, the majority of open interest in IBIT call options suggests expectations of an ETF rally to levels equivalent to BTC trading at $109,709 in the near term. In contrast, Deribit options positioning is bullish but more measured, indicating expectations of a rally to $106,000. The average delta of onshore call options is slightly lower, consistent with onshore flow being dominated by retail upside speculation and systematic call overwriting programs. ETF holders tend to be more patient, with October 2026 expiries 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: ETF holders cannot easily short bitcoin directly, so they buy put options as their only available hedge, driving up demand and implied volatility. Overall, IBIT's rapid rise in the options market is striking, and the two markets are not direct substitutes, as IBIT options primarily cater to regulated, onshore investors, 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.