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

A notable development occurred on Friday, marking a significant milestone in the accelerating institutionalization of the bitcoin market. This is attributed to the growth of options linked to BlackRock's bitcoin exchange-traded fund (ETF), IBIT, which have become slightly larger than the total bitcoin options trading on Deribit. The fact that IBIT options have closed the gap with Deribit's bitcoin options market in just two years is particularly striking. On Friday, the dollar value of open IBIT options contracts on Nasdaq was $27.61 billion, slightly higher than the $26.90 billion in Deribit's bitcoin options. 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 embolden 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 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 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. Traders use 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. The two markets, though similar in scale, are positioned differently, revealing a lot about trader sentiment. According to Volmex, the bulk of open interest in IBIT call options is concentrated at strike levels equivalent to bitcoin trading around $109,709. Positioning in Deribit options is also concentrated on the higher side but is slightly more conservative. "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," Volmex noted. Put positioning is largely aligned across venues, with open interest concentrated around the $63,500 strike. Options have expiry dates, and 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. Volmex attributes this premium to a structural quirk: Because ETF holders cannot easily short bitcoin directly, they buy put options as their only available hedge. 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 place 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.