Leverage & trading · 5 min read · Live · Binance only

Open interest: how much leverage is still open?

One-minute answer: Open interest is the total dollar value of futures positions that are still open. Rising open interest means more position value is entering; a sudden fall means many positions closed or were liquidated.

What it actually means

Every futures position has a buyer and a seller, but open interest counts the contract once. It increases when new positions are created and decreases when positions are closed.

Open interest does not say whether the market is net long or net short. Every open contract has both sides. Funding and price help describe which side is more crowded or under pressure.

What to look for

Price up, open interest up — New position value is entering while price rises. The move is attracting leverage.
Price flat, open interest up — Borrowed bets are stacking up without a clear price result, creating fuel for a later move.
Open interest drops sharply — A large amount of position value disappeared through voluntary closures, liquidations, or both.
Price moves, open interest falls — The move is clearing existing positions rather than adding new leverage.

Worked example

A drop from $38 billion to $32 billion in 24 hours means about $6 billion of open position value disappeared on the measured venue during that day. It does not mean traders lost $6 billion in cash.

What this cannot tell you

The chart is Binance only, not every exchange.
Open interest measures size, not direction or entry price.
A drop includes positions that traders closed voluntarily as well as positions the exchange force-closed.

Data source

Binance public Bitcoin perpetual open-interest data, converted to US dollars and accumulated in SafuTrading's warehouse.

Open Bitcoin Open Interest — Dollar value of still-open Binance Bitcoin perpetual positions.