BTC: Open Interest Change Heatmap, in Coins (All Assets)
Shown as its 3 Oct – 1 Nov 2026 sample; the latest readings and full history are included with Plus.
The change of every coin's perpetual open interest in each period, counted in the coin itself, in percent, one row per coin.
Why use it. Open interest in USD also moves with the price. Counted in coins, a rise means traders really added positions, and a fall means they closed them, whichever way the price went. How to read it. Coins run down the side, largest open interest at the top, and time runs across; each cell is one coin in one period. Blue cells are open interest growing, red cells shrinking, on a two-sided scale. The summary value is the average of the coins, weighted by their perpetual open interest in USD.
Calculation. Per coin: (closing perpetual open interest in coins / the previous period's - 1) x 100. Each coin's row is the change of its own number of coins, so the rows can be compared even though the coins differ. Source: our own minute-by-minute collection of public futures data across every coin with perpetual futures that CryptoKeyhole covers, from Binance, Bybit, OKX, Deribit, Kraken, Bitfinex, Bitget, Gate, Hyperliquid, KuCoin, HTX, Crypto.com and Coinbase (open interest, funding, and the public liquidation feeds we collect), and our own USD price indexes. Each coin counts with the same values its own charts show. The series start on 24 October 2026, the first day our collection held every coin's open interest, funding, liquidations and price; a coin added later joins on the day its collection begins. A period appears once nine in ten of the coins have published it, so the open hour can trail by a few minutes. Venues we do not collect are not included, so totals understate the whole market.