BTC vs ETH Open Interest

This page is planned to compare Bitcoin and Ethereum open interest side by side, along with the ratio between them, showing how derivatives capital is allocated between the two major assets.

The ETH/BTC open-interest ratio is a proxy for risk appetite: it rises when capital chases the higher-beta asset and falls as money retreats into Bitcoin. Always read it against the price ratio — if the OI ratio climbs while the price ratio does not follow, leveraged bets are running ahead of spot, and such structures unwind more violently when the thesis fails. Note too that Ethereum's staking yield feeds into its futures basis, creating a structural difference in comparability with Bitcoin.

Volume and market-structure metrics describe the size and distribution of trading activity. Methodologies differ sharply between venues (wash-trading filters, USD conversion), so confirm the accounting basis before comparing platforms side by side.

The construction is a synchronised pair of aggregates: BTC and ETH open interest summed across the same venue set in USD notional, so that the ratio is not distorted by one asset having broader venue coverage than the other. Refreshing both legs on the same schedule matters for the same reason, because a ratio built from staggered snapshots manufactures spurious moves. Useful companion series include each asset's OI change decomposed by margin type, since ETH carries a structurally higher coin-margined share on some venues, and the OI ratio plotted against the ETH/BTC spot price ratio, where the gap between the two lines is the leverage-versus-spot divergence. Regime context helps too: the ratio's meaningful range shifts across cycles as ETH's derivatives ecosystem matures, so percentile ranks within a rolling window read better than absolute levels. Around Ethereum-specific events such as upgrades and ETF decisions, the ratio has tended to move before the price ratio rather than after, which is precisely its value as an early-positioning gauge.

The live chart for this metric is still being wired up. Global volume, venue share and perp-vs-spot pages already carry real data.