Bitcoin derivatives: open interest, funding rate and liquidations
How much leveraged Bitcoin is open on the big futures exchanges, who is paying whom to hold it, and what was forced out recently. Numbers come straight from the exchanges' public APIs (no keys), refreshed every minute. Where there is no free source, the page says so instead of guessing.
Not investment advice. Statistics describe the past and do not predict price.
Open interest: BTC perpetual futures
| Exchange | Contract | Open interest, BTC | Open interest, USD | Mark price, USD |
|---|---|---|---|---|
| Binance | BTCUSDT perpetual | 95,552 | $7.77bn | 81,320 |
| Bybit | BTCUSDT perpetual | 30,681 | $2.49bn | 81,315 |
| OKX | BTC-USDT swap | 30,944 | $2.52bn | 81,325 |
| Deribit | BTC-PERPETUAL (inverse) | 10,251 | $0.83bn | 81,269 |
Binance, Bybit and OKX: USDT-margined contracts, open interest in BTC. Bybit: the single-sided figure. Deribit: BTC-PERPETUAL is inverse, its USD open interest is divided by the mark price. A dash means that exchange did not answer; it is left out of the total.
Sources: Binance USDⓈ-M Futures API, Bybit V5 API, OKX API v5, Deribit API v2 · as of 22 Oct 2026, 21:20 London
Funding rate
Positive: long holders pay short holders. Negative: shorts pay longs. Weighted by open interest the four exchanges average +6.7% a year (simple annualised).
| Exchange | Rate per period | Period | Annualised |
|---|---|---|---|
| Binance | +0.006% | 8 h | +6.6% |
| Bybit | +0.005% | 8 h | +5.5% |
| OKX | +0.0096% | 8 h | +10.6% |
| Deribit | +0.0002% | 8 h | +0.2% |
Sources: Binance USDⓈ-M Futures API, Bybit V5 API, OKX API v5, Deribit API v2 · as of 22 Oct 2026, 21:20 London · the rate shown is the latest published, not a forecast of the next payment
Liquidations
On OKX BTC-USDT swap the latest 100 filled liquidations (22 Oct, 17:51 to 22 Oct, 20:46 London time, about 3 hours) were worth $638k: long positions $479k (5.9 BTC), short positions $159k (2 BTC). The largest single liquidation was $118k.
Source: OKX API v5: liquidation-orders · as of 22 Oct 2026, 21:20 London · contract size 0.01 BTC per contract; the window is what the endpoint returns, not a fixed 24 hours
History: 30 days on Binance BTCUSDT
Open interest, USD
Funding rate per 8 hours, %
Show the open interest table
| Day | BTC | USD |
|---|---|---|
| 22 Oct | 98,002 | $8.24bn |
| 21 Oct | 94,819 | $7.87bn |
| 20 Oct | 95,036 | $7.78bn |
| 19 Oct | 93,131 | $7.64bn |
| 18 Oct | 94,267 | $7.68bn |
| 17 Oct | 94,276 | $7.69bn |
| 16 Oct | 94,395 | $7.76bn |
| 15 Oct | 93,117 | $7.60bn |
| 14 Oct | 92,500 | $7.69bn |
| 13 Oct | 93,419 | $7.64bn |
| 12 Oct | 92,378 | $7.73bn |
| 11 Oct | 92,593 | $7.68bn |
| 10 Oct | 92,529 | $7.64bn |
| 9 Oct | 93,004 | $7.60bn |
| 8 Oct | 95,834 | $7.98bn |
| 7 Oct | 95,681 | $8.18bn |
| 6 Oct | 94,297 | $8.08bn |
| 5 Oct | 97,452 | $8.43bn |
| 4 Oct | 97,928 | $8.30bn |
| 3 Oct | 98,184 | $8.29bn |
| 2 Oct | 96,931 | $8.22bn |
| 1 Oct | 95,419 | $7.98bn |
| 30 Sept | 92,474 | $7.73bn |
| 29 Sept | 92,800 | $7.75bn |
| 28 Sept | 94,143 | $7.95bn |
| 27 Sept | 94,518 | $7.98bn |
| 26 Sept | 95,211 | $8.00bn |
| 25 Sept | 95,873 | $8.09bn |
| 24 Sept | 98,503 | $8.31bn |
| 23 Sept | 106,720 | $9.20bn |
Source: Binance futures data: openInterestHist, fundingRate · as of 22 Oct 2026, 21:20 London · one exchange (Binance), daily points, cached 15 minutes
Sources and method
- Binance: /fapi/v1/openInterest, premiumIndex, fundingInfo, futures/data/openInterestHist, fundingRate (BTCUSDT).
- Bybit: v5 market/tickers, linear BTCUSDT (singleOpenInterest, fundingRate, fundingIntervalHour).
- OKX: public open-interest, funding-rate, mark-price, liquidation-orders, instruments (BTC-USDT-SWAP).
- Deribit: public/ticker BTC-PERPETUAL (open_interest in USD, funding_8h, mark_price).
All requests are made by our server to public endpoints without keys and cached for 60 seconds (history 15 minutes). If an exchange fails we show its last good value marked as such, never a made-up one. Only one main BTC perpetual per exchange is counted: no quarterly futures, no options, no coin-margined copies on other exchanges. Other exchanges (Bitget, Gate, Kraken, Bitfinex) also have public APIs but are not included yet: their open interest is counted in different units and we have not verified it.
The same data is available to AI agents through the MCP server (tool get_derivatives).
Sources: Binance USDⓈ-M Futures API, Bybit V5 API, OKX API v5, Deribit API v2 · as of 22 Oct 2026, 21:20 London
FAQ
- What is open interest?
- Open interest is the total size of futures contracts that are still open, counted once per position, not once per side. A rise means new positions are being opened, a fall means positions are being closed. It does not say whether traders are betting up or down.
- What does the funding rate mean?
- Perpetual futures have no expiry date. A funding payment moves between traders every few hours (every 8 hours on the exchanges shown) to keep the contract price close to spot. When the rate is positive, long holders pay short holders; when it is negative, shorts pay longs. A high positive rate means leveraged longs dominate and are paying for it.
- How is the annualised funding calculated?
- Rate for one interval × (24 ÷ interval hours) × 365, a simple (non-compounded) figure. It shows what holding a position would cost or pay over a year if the rate never changed, which it does.
- Why are open interest figures different on each exchange?
- Each exchange has its own users and contract type. Binance, Bybit and OKX list USDT-margined contracts where open interest is counted in BTC; Deribit's BTC-PERPETUAL is inverse (margined in BTC) and reports USD, which we divide by the mark price. Bybit reports a both-sides figure and a single-sided one; we show single-sided, the number its own site displays. The total is a sum of four exchanges, not the whole market.
- Why is there no total of liquidations across all exchanges?
- We found no free, keyless public source for it. Binance and Bybit publish liquidations only as a live stream, and aggregators such as Coinglass require an API key. Rather than estimate, we show what one exchange (OKX) publishes openly, with the time window it covers. A collector that records the live streams is possible later.
- Is this a trading signal?
- No. These are exchange statistics, shown as they are. They describe what has happened, not what will happen, and nothing here is investment advice.