Open interest vs volume in perpetual futures
perpfuse · Updated:
Read open interest alongside price and volume. Understand USD conversion, contract differences and why rising OI does not identify bullish or bearish positioning.
A stock of open contracts
Open interest measures outstanding contracts at a point in time. Volume measures trading during a period. A contract can change hands repeatedly and create volume without increasing open interest. Each open contract has a long and a short side, so an OI increase alone does not reveal which direction will win.
Check units before comparing venues
An exchange may publish contracts, base-asset quantity or a quote-currency value. Contract multipliers and linear, inverse or quanto settlement affect conversion. If exposure is two BTC, a move from $60,000 to $66,000 increases its USD value from $120,000 to $132,000 even if the quantity does not change. A USD OI chart can therefore move partly because of price.
Interpret changes with context
Compare OI changes with price, volume, funding and the age of each observation. Rising price and rising OI describe simultaneous changes; they do not prove new long positions dominate. Missing snapshots, a change in exchange reporting or a contract migration can create apparent jumps. Check source rules and data-quality flags before treating a discontinuity as capital entering or leaving the market.
Use perpfuse for comparison
Start with the open-interest table, narrow to an asset and inspect its exchange rows. Avoid adding overlapping contract definitions or treating missing OI as zero. Review settlement currency and contract size on the market detail page. Current observations are useful for monitoring exposure, but they neither identify individual traders nor establish a reliable forecast by themselves.
Sources and methodology
Educational analytics only. No personalized investment advice, trade execution or guaranteed returns. Verify contract terms and current data with the venue.