Bitcoin traders pile into $75K bets as March options expiry dominates open interest

Bitcoin is approaching a critical resistance level as the derivatives market clusters heavily around $75,000 call options, ahead of a major options expiry later this month.

Data from Greeks.live shows that quarterly options expiring on 27 March account for more than 40% of Bitcoin’s total open interest. This marks one of the most concentrated expiry events in recent months. 

The buildup suggests traders are positioning for a decisive move as BTC trades just below the widely watched $75K level.

At the time of writing, Bitcoin was trading around $73,600, putting the market within striking distance of the key options strike.

Bitcoin Options positioning centers around March expiry

The latest options data reveals a clear skew toward bullish positioning. Total call options stand at roughly 284,590 BTC, compared with 192,919 BTC in put options, leaving the put-to-call ratio at around 0.68.

A ratio below 1 generally indicates that traders are placing more bets on price gains than declines.

More notably, the 27 March expiry dominates the options landscape, accounting for roughly 41% of total open interest. A large portion of this exposure is concentrated in $75,000 call options, with single contracts at that strike representing more than 5% of total positioning.

Such concentration effectively creates a major derivatives battleground near the $75K level.

A “gamma wall” forming at $75K

Analysts from Greeks.live describe the buildup as a “gamma wall”, a scenario where a large number of options contracts cluster around a specific strike price.

When this happens, market makers’ hedging activity can significantly influence short-term price action.

If Bitcoin breaks above $75,000, option sellers may be forced to hedge their exposure by buying BTC, potentially accelerating upward momentum in what is commonly known as a gamma squeeze.

On the other hand, failure to break through the level could see the asset remain pinned below resistance as expiry approaches, particularly if market makers attempt to keep prices near levels where the most options expire worthless.

Derivatives market size adds to volatility potential

The broader derivatives market also highlights how significant the current positioning has become.

Data from Coinglass shows Bitcoin options open interest exceeding $41 billion, reflecting the growing role of derivatives in shaping market dynamics.

The rise in options activity over the past two years has increasingly made expiry events a key catalyst for volatility.

With Bitcoin consolidating between roughly $70,000 and $75,000 in recent weeks, the heavy options concentration now places additional focus on whether the market can break through resistance.

All eyes on the $75K resistance

Technically, the $75,000 level also represents the upper boundary of Bitcoin’s nearly two-month consolidation range, making it a major psychological barrier for traders.

The combination of technical resistance and large derivatives positioning means the coming days could prove decisive.

If Bitcoin breaks above $75K, the move could trigger additional buying pressure from options hedging and momentum traders. Conversely, repeated rejection at the level may keep the asset range-bound as the March expiry approaches.

For now, the derivatives market suggests one thing clearly: a large portion of traders are betting that Bitcoin’s next move will be upward.

Final Summary

• Bitcoin options expiring on 27 March now account for over 40% of total open interest, making it one of the most important derivatives events of the month.
• Heavy positioning around $75K call options has created a potential volatility trigger as BTC trades just below the key resistance level.