Bitcoin Call Options Share Falls as Open Interest Sentiment Shifts

The share of call options in Bitcoin open interest has declined from nearly 70% two years ago to just under 60% today, according to research from Anchorage Digital. The shift signals that the Bitcoin derivatives market is moving away from one-sided bullish speculation toward more balanced positioning that includes hedging and income-generation strategies.

What the Decline in Bitcoin Call Options Share Actually Means

Call options give the buyer the right to purchase Bitcoin at a set price, and they are typically associated with bullish bets. Open interest measures the total number of outstanding contracts that have not been settled. When calls dominate open interest, it suggests the market leans heavily toward upside exposure.

Two years ago, calls made up nearly 70% of Bitcoin options open interest. That figure has since fallen to just under 60%. The percentage matters more than raw totals because the overall market has grown enormously during the same period.

Bitcoin options open interest has grown roughly ten-fold over the past five years and currently sits at around $60 billion. It briefly broke above $100 billion at the end of 2025. This is not a shrinking market losing bullish interest; it is a rapidly expanding market where the mix of strategies is becoming more sophisticated.

By comparison, BTC futures open interest currently stands at under $50 billion. In October 2025, options open interest outpaced futures by roughly $40 billion, a gap that underscored how much the derivatives landscape has tilted toward options-based strategies.

Why Traders May Be Moving Away From a Call-Heavy Structure

A reduced call share does not automatically mean traders are bearish. It can reflect a market where participants are adding put protection alongside their long exposure, or where institutions are selling calls against existing Bitcoin holdings to generate yield through covered-call strategies.

The Anchorage research focused specifically on systematic covered-call writing, a strategy where holders sell upside calls to collect premium income. As more capital deploys this approach, calls shift from the buy side (speculative) to the sell side (income), changing the composition of open interest without implying a directional bet.

Institutional access to Bitcoin options expanded meaningfully after options on BlackRock’s IBIT launched in November 2024. CME Group’s regulated Bitcoin options venue has also gained traction, drawing in participants who use options for hedging rather than pure speculation. The growth of these regulated venues has helped pull the market toward more balanced positioning, similar to what early Bitcoin adopters have observed as the asset class matures.

Profit-taking after Bitcoin’s rally cycles may also play a role. As holders look to protect gains, demand for downside protection through puts naturally increases, pulling the call share lower.

What This Shift Says About Bitcoin Market Sentiment Right Now

The derivatives data aligns with a cautious, not necessarily bearish, market mood. The Fear and Greed Index currently reads 12, labeled Extreme Fear, while Bitcoin trades near $63,322 with a 24-hour gain of roughly 2%.

CME Group data from earlier this year showed BTC’s 25-delta risk reversal fell to -19.34 on February 5, 2026, its lowest level since 2022. A negative risk reversal means traders are paying more for puts (downside protection) than for calls (upside exposure), reinforcing the structural shift visible in the open interest composition.

More recently, on May 22, 2026, options traders on Deribit were selling calls while put activity concentrated at the $71,000 to $77,000 strikes. That positioning suggests participants are capping their upside expectations while paying to insure against a drop into the low $70,000s.

It is worth distinguishing cautious from bearish. A 60% call share still means calls outweigh puts meaningfully. The Anchorage research noted that Bitcoin’s call share remains far above equity benchmarks: SPY options carry only a 34% call share and QQQ sits at 36%. Even after the decline, Bitcoin’s options market is still more call-heavy than traditional equity markets.

Which Signals Investors Should Watch Next

The direction of the call-put ratio over the coming months will matter more than any single reading. If call share continues declining toward 50%, it would suggest the market is reaching the kind of balanced, two-way positioning common in mature asset classes.

Relative demand for puts versus calls at specific strikes provides more granular insight than aggregate open interest alone. Concentrated put buying at certain price levels, as seen in the recent Deribit data, reveals where traders expect support or fear breakdowns. This kind of derivatives positioning data has become increasingly important for reading the market.

Spot Bitcoin price behavior and realized volatility should be tracked alongside options data. If spot price consolidates in a tight range while put demand stays elevated, it may indicate hedging against a known catalyst. If volatility compresses while call share rebounds, it could signal renewed bullish conviction.

The regulatory environment for Bitcoin options continues to evolve. As venues like CME and IBIT options attract more institutional flow, the composition of open interest will increasingly reflect hedging and portfolio-construction logic rather than pure directional speculation. Developments in crypto regulation across major markets could further shape how institutions approach derivatives positioning.

FAQ: Bitcoin Call Options and Open Interest

What does open interest mean in Bitcoin options?

Open interest is the total number of options contracts that are currently active and have not been exercised, expired, or closed. It measures how much capital is committed to options positions at any given time.

Is a lower call share bearish for Bitcoin?

Not necessarily. A declining call share can mean traders are adding hedges or selling calls for income, not that they expect prices to fall. Bitcoin’s call share at just under 60% still shows more bullish than bearish positioning overall.

Why would traders prefer puts or hedged positions instead of calls?

Institutional investors often use puts to protect large Bitcoin holdings against downside risk. Others sell calls against their holdings to earn premium income. Both strategies reduce the call share without implying a bearish outlook.

Can options data predict Bitcoin’s next price move?

Options data reflects how traders are positioning, not where the price will go. It is one signal among several, including spot price trends, on-chain flows, and macroeconomic conditions, that together paint a picture of market sentiment.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making any investment decisions.