How much leverage is in the market? The total value of outstanding Bitcoin futures contracts, aggregated across all exchanges — live, with a 30-day history.
Open interest is the total dollar value of Bitcoin futures contracts that are currently open across all major exchanges. Every contract pairs a long with a short, so open interest is a direct measure of how much capital is committed to leveraged positions right now — in other words, how much leverage is in the system.
Open interest is most useful read alongside price. Rising OI + rising price = new money opening longs, healthy momentum. Rising OI + falling price = fresh shorts piling in, or longs getting trapped — a setup for a squeeze. Falling OI means positions are closing or being liquidated: a deleveraging that often accompanies sharp moves and can clear the way for a fresh trend.
A market at record-high open interest is carrying a lot of leverage, which makes it fragile — a modest move can cascade into liquidations that amplify it. Low open interest after a flush means leverage has been reset, which historically precedes cleaner, more sustainable trends. Pair this with funding rates and long/short positioning to see not just how much leverage exists, but which way it's leaning.