A significant development occurred on Friday, marking the acceleration of institutionalization in the bitcoin market, which has long been driven by individual investors. This is evident in 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 Deribit.

Notably, 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 open interest (OI) in IBIT options contracts on Nasdaq reached $27.61 billion, surpassing 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 now on par with the offshore market.

Furthermore, 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 investors can access regulated leverage and options exposure through IBIT options, which is supported by the current macro environment and 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, although now matching in scale, are positioned differently, revealing distinct trader sentiments. According to Volmex, the 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, approximately 41% higher than the current market price.

In contrast, positioning in Deribit options is bullish but slightly more measured, indicating expectations of a rally to $106,000. The onshore call open interest is concentrated further out-of-the-money than offshore, 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. The implied volatility of IBIT is higher than that of Deribit's BTC options, which Volmex attributes to a structural quirk where ETF holders cannot easily short bitcoin directly and instead buy put options as a hedge.

Overall, IBIT's rapid rise in the options market is striking, and while it may rival Deribit in scale, 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.