Open interest in ETH options now equals about 23% of futures open interest. That ratio points to a market that prefers leveraged directional bets over convexity, the asymmetric payoff profile that makes options distinct.
Reading the ratio
Open interest is the total value of derivatives contracts still open, not yet closed or settled.
Data from Coinalyze in late September 2026 put ETH options open interest at roughly 23.8% to 24.3% of combined futures and perpetual contract open interest.
Coinalyze tracked aggregated ETH futures and perpetuals open interest at about $17.8B to $18.1B. Traditional delivery futures made up only around $271M to $272M of that total. The rest belongs to perpetual futures, contracts that never expire and are kept in line with spot prices through periodic funding payments between longs and shorts.
Other market estimates place total ETH futures and perpetuals open interest between $20B and more than $32B across over 20 exchanges, including Binance and Bybit. If the larger figures are closer to the truth, the options share of the pie would look even thinner than the headline ratio suggests.
The options side of the market is also highly concentrated. Most of the activity runs through Deribit. In mid-2026, calls made up about 55% to 60% of ETH options open interest on Deribit.
What this means for ETH traders
With roughly $18B or more sitting in futures and perpetuals, a sharp move in either direction can set off liquidation cascades, where falling prices trigger forced closures, which push prices lower, which trigger more forced closures.
For anyone watching ETH, a rising options share would indicate traders are shifting toward hedged or volatility-focused strategies. A falling share, especially alongside climbing futures open interest, would mean leverage is stacking up faster than protection. Pairing that ratio with funding rates gives a clearer read on how crowded the trade has become.
