Open interest counts the money currently committed to open positions — not how much has changed hands, but how much is still sitting on the table right now.
Open interest (OI) is the total number of futures contracts that are currently open — positions that have been entered but not yet closed. On CoinLAB it's shown in US dollars, so you can read it as the total money parked in active positions on that coin.
Every contract has two sides: one trader long, one trader short. Open interest counts that pair once. When a new buyer and a new seller open a fresh position together, OI goes up. When they close it out, OI goes down.
People often mix these two up, but they answer different questions. Volume is how many contracts changed hands over a period — every trade, in and out, added up. Open interest is how many positions are still open right now.
Picture a party. Volume is how many times the front door swung all night — everyone coming and going. Open interest is how many people are actually in the room at this moment. The door can swing a thousand times while the room stays half full — high volume doesn't always mean rising open interest.
On CoinLAB, the Open Interest card shows both the current dollar value and how it has shifted recently. The raw number tells you how much capital is in the game; the change tells you whether money is flowing in or stepping out.
Rising OI means new positions are being opened — fresh money entering the market. Falling OI means positions are being closed — money leaving. That direction, paired with where price is heading, is where open interest gets interesting.
OI is most useful read alongside price. When price rises and OI rises with it, new money is backing the move — often read as a healthier, better-supported trend. When price rises but OI falls, the move may be driven by traders closing shorts rather than fresh buyers stepping in — a rally with less new conviction behind it.
The same logic runs in reverse on the way down. These are tendencies, not rules — open interest describes how committed the market is right now, not which way it will break next.
Open interest measures participation, not direction. A large or rising number tells you money is committed — it doesn't tell you who's right. Nothing here is financial advice. Always do your own research.