Source: https://mochatrade.com/learn/glossary/open-interest

# Open interest
URL: https://mochatrade.com/learn/glossary/open-interest
Last modified: 2026-10-17

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](https://mochatrade.com/learn/start-here/how-to-read-us-market-news), on [the contract header](https://mochatrade.com/learn/start-here/nvidia-trade-walkthrough), and an $11 billion figure is what made one venue a White House topic.

## Related terms

- Funding rate: https://mochatrade.com/learn/glossary/funding-rate
- Perpetual futures: https://mochatrade.com/learn/glossary/perpetual-futures
- Mark price: https://mochatrade.com/learn/glossary/mark-price
- Last traded price: https://mochatrade.com/learn/glossary/last-traded-price
- Put option: https://mochatrade.com/learn/glossary/put-option
- Option open interest: https://mochatrade.com/learn/glossary/option-open-interest

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