Open interest

Open interest is the total size of all open positions in a contract, how much money is in the trade. Rising open interest with a rising price means new money is pushing; a rising price with falling open interest means shorts are covering. It sits next to funding in the layer of what is priced, on the contract header, and an $11 billion figure is what made one venue a White House topic.

Go on

In the help centreLearn what a perpetual contract is on Mochatrade
  • Funding rateThe funding rate is the periodic payment between longs and shorts that keeps a perpetual near the real price: above…
  • Perpetual futuresPerpetual futures are contracts that track an asset's price with no expiry date. Expiry is what pulls a normal future…
  • Mark priceThe mark price is the price a venue judges your position by, for unrealised profit and liquidation, built from the…
  • Last traded priceThe last traded price is the most recent trade on the venue's own book, the one the chart shows. You never trade at…
  • Put optionA put option is the right to sell at the strike before expiry, so it gains when the price falls: insurance on a…
  • Option open interestOption open interest is the number of option contracts that exist at a strike right now, free on any option chain. The…

Educational content only. Not investment advice. Leveraged products magnify losses as well as gains.

Where it comes up