What is open interest in crypto? Meaning, signals and squeezes

Open interest is the total value of futures positions that are open right now. If one trader opens a $50,000 long and another takes the other side with a $50,000 short, open interest rises by $50,000, not $100,000, because every long has a matching short. When positions are closed, open interest falls. It tells you how much money is committed to a market at this moment, which is different from how much was traded.

Open interest vs volume

Volume counts every trade in a period. Open interest counts what is still standing at the end of it. Three examples with made-up numbers make the difference clear:

• A trader opens a $1M long against a new $1M short. Volume +$1M, open interest +$1M.
• That trader sells the $1M long to someone opening a new long. Volume +$1M, open interest unchanged: the position just changed hands.
• The long sells to the short, who buys back to close. Volume +$1M, open interest -$1M.

So a market can trade billions in a day with flat open interest, because traders are passing positions back and forth. Rising open interest means new money is entering positions. Falling open interest means positions are being closed, by choice or by liquidation.

The four combinations of price and open interest

Open interest on its own doesn't say whether the new positions are long or short, since both sides grow together. Paired with price, it gives a reasonable guess about who is driving the move. These are tendencies, not rules:

1. Price up, open interest up: new positions are opening as price rises, usually aggressive longs. The move has fresh money behind it, but it also builds a crowd of longs who could be forced out later.
2. Price up, open interest down: positions are closing as price rises, often shorts buying back to cut losses. This can be sharp but may run out of fuel once the shorts are gone.
3. Price down, open interest up: new positions are opening as price falls, usually new shorts. Sellers are committing money, and a crowd of shorts is building.
4. Price down, open interest down: positions are closing as price falls, often longs giving up or being liquidated. Once the selling is done, the market can be cleaner afterwards.

How squeezes happen

A squeeze is a fast move caused by one side being forced to close. Suppose open interest on a coin has climbed steadily while funding is strongly negative, which means shorts are crowded and paying to stay in. Then price moves up a few percent. The most leveraged shorts get liquidated, and each liquidation is a forced buy. Those buys push price higher, which liquidates the next layer of shorts. Price spikes and open interest drops quickly as the shorts are cleared out. That is a short squeeze. A long squeeze is the same in reverse: crowded longs, a dip, forced selling, a sharp drop.

The setup to watch for is high or rising open interest, one-sided funding and price sitting near a level where many positions would be under pressure. The squeeze itself usually shows up as a sudden fall in open interest during a sharp price move. Large one-way trades often appear in the whale trades feed at the same moment.

A worked example

Take a made-up coin over three days. On day one, price rises 6% and open interest rises from $40M to $55M, while funding climbs from near zero to strongly positive. That reads as case 1: fresh leveraged longs are driving the move. On day two, price goes sideways but open interest keeps rising to $62M and funding stays high. The crowd is still growing and paying to stay in, with no new progress on price. On day three, price drops 5% in an hour and open interest falls to $48M. That is case 4, and the speed of it suggests liquidations rather than calm selling: a long squeeze.

None of this could have told you the exact day of the drop. What it did show was a market becoming more crowded and more expensive to hold on one side, which is the condition squeezes need.

Common mistakes

• Treating high open interest as bullish or bearish on its own. It only says positions are large, not which way they lean.
• Comparing open interest across coins without context. A big coin naturally has more. Look at how open interest is changing for one market over time.
• Ignoring the period. A one-hour rise in open interest during a news spike means something different from a steady build over two weeks.

Where to see open interest on sasa

sasa's Data page (Market, then Data) shows open interest in two places. The 'Right now' panel shows total open positions, which is open interest added up across all of Hyperliquid's markets, next to Bitcoin and Ethereum price, 24-hour volume, average funding and the number of markets. The Movers section has a 'Most open interest' list, alongside the coins that are up most, down most and most traded.

A useful habit: when a coin appears in both 'Up most' and 'Most open interest', check its funding in the Funding section. If funding is very positive too, the move is crowded with leveraged longs. The Market Fear & Greed reading on the same page gives a quick sense of whether the whole market is leaning the same way.

Open interest describes positioning, not the future. Crowded markets can stay crowded for weeks. If you trade futures on sasa's Futures page, where up to 20x leverage is available in some countries, remember that leverage can lose your whole position. Nothing here is financial advice.