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

A notable development occurred on Friday, highlighting the accelerating institutionalization of the bitcoin market, which has been driven by individual investors for years. This is evident in the growth of options linked to BlackRock's bitcoin exchange-traded fund (ETF), IBIT, which have surpassed total bitcoin options trading on the offshore platform Deribit. Notably, IBIT options have closed the gap with Deribit's bitcoin options market in just two years, despite Deribit operating since 2016. On Friday, the dollar value of open IBIT options contracts on Nasdaq, known as open interest, reached $27.61 billion, slightly exceeding the $26.90 billion in Deribit's bitcoin options, according to data from Volmex. This milestone indicates that the regulated, institutional-grade bitcoin investment and derivatives infrastructure in the US is no longer secondary to the offshore market. 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 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, with supply chain uncertainty, energy shocks, and broader geopolitical risks, which naturally drives demand for hedging and options strategies,' Fariq stated. Options are derivative contracts that grant 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 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, are positioned differently, revealing trader sentiment in each. According to Volmex, the bulk 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, roughly 41% higher than the current market price. In contrast, positioning in Deribit options is bullish but slightly measured, indicating expectations of a rally to $106,000. 'Onshore call OI 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, both of which concentrate OI in further-OTM strikes,' Volmex noted. ETF holders tend to be more patient, with options having expiry dates and contracts being settled based on IBIT or spot BTC prices at that time. Analysis of activity across both markets suggests that October 2026 expiries are preferred in IBIT, while August expiries dominate on Deribit. 'IBIT options are approximately two months longer-dated on an OI-weighted basis. The gap is roughly symmetric across puts and calls, suggesting it reflects the underlying holder base, longer-horizon ETF investors onshore versus more tactical positioning offshore, rather than asymmetric demand for protection or upside,' Volmex observed. Lastly, IBIT's implied volatility is higher than the implied volatility derived from Deribit's BTC options, attributed to a structural quirk where ETF holders cannot easily short bitcoin directly, leading to demand for put options and elevated implied volatility. Overall, IBIT's rapid rise in the options market is striking and now appears to rival Deribit in scale, although the two are not direct substitutes, with IBIT options catering to regulated, onshore investors and Deribit remaining a hub 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.