SPDR S&P 500 ETF (SPY) open interest live: chart and OI by exchange
Open interest in SPY perpetual futures totals $8.25M across 2 contributing markets, with Bybit SPYUSDT holding 94.7% of it. OI changed +4.89% in the last hour, +7.44% over 4 hours and +8.94% over 24 hours. Over the same 24 hours the price moved -0.38%: new positions opened while price fell, which is typical of fresh shorts leading. Matched 24h snapshots cover 2 / 2 current counted markets (100.0% of current counted OI). Their implied USD change is +$677K. Among matched markets, Bybit has the largest venue increase (+$685K) and HTX has the largest venue decrease (-$7,889). These implied changes in USD-valued open interest use the displayed 24h snapshots and reflect price as well as position quantities.
SPY open interest by exchange
USD · changes from 5-minute snapshots| Market | Open interest | Share | OI 1h | OI 4h | OI 24h | Price 1h | Price 24h | Funding 8h | 24h volume | Trade |
|---|---|---|---|---|---|---|---|---|---|---|
| Bybit SPYUSDT | $7.81M | 94.7% | +5.20% | +7.92% | +9.61% +$685K |
-0.39% | -0.38% | 0.0000% | $10.52M | Trade |
| HTX SPY-USDT | $439K | 5.3% | -0.32% | -0.47% | -1.77% -$7,889 |
-0.31% | -0.38% | 0.0158% | $17K | Trade |
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SPY open interest history
From recorded history, hourlySPY open interest is $8.25M, up 56.7% over the past 7 days, and up 9.3% in the last 24 hours.
SPY open interest
All perps, USDLoading chart…
Not recorded Chart: TradingView Lightweight Charts™
SPY open interest in SPY
All perps, coin units at each market's mark priceLoading chart…
Not recorded Chart: TradingView Lightweight Charts™
About the SPY open interest
What is SPY open interest?
Open interest (OI) is the total value of all open SPY perpetual futures positions, in USD. Every open contract has a long and a short side, so OI counts one side only. It rises when new positions open and falls when positions close or are liquidated.
How to read OI with price
OI up, price up: new positions opening as price rises, usually fresh longs. OI up, price down: fresh shorts. OI down, price up: shorts closing (a short squeeze if fast). OI down, price down: longs exiting or being liquidated. Large OI changes in a few hours show where leverage is building or unwinding in SPY.
Where the numbers come from
The current SPY OI total includes public API data from Bybit and HTX. Current coverage: 2 exchanges · see coverage. Excluded venues remain visible per market but contribute neither to the combined total nor to row shares. Markets with missing or stale OI also have no share. OI is converted to USD at the mark price, so part of an OI change can come from the price move itself. Changes compare the current value with 5-minute snapshots the server has recorded since it last started.
Is this aggregated SPY open interest?
Yes. The headline figure and the SPY open interest chart sum eligible tracked SPY perpetuals; the current total includes Bybit and HTX ($8.25M now). Current coverage: 2 exchanges · see coverage. Excluded venues remain visible per market but contribute neither to the combined total nor to row shares. Markets with missing or stale OI also have no share; historical coverage can vary, with history since 27 Sep. The same series is free as JSON from /api/series/oi.
Which SPY perpetual contract has the most open interest?
Right now Bybit (SPYUSDT) is the largest SPY perpetual market, with $7.81M or 94.7% of the $8.25M tracked total. This compares individual eligible contracts with current OI data. The table above lists all 2 markets with their OI, 1h, 4h and 24h changes and funding.
Where can I compare open interest across coins?
The crypto open interest table ranks every perpetual by OI with 1h, 4h and 24h changes, the OI change screener finds the biggest moves, and Hyperliquid open interest covers the on-chain exchange on its own.