Trading term
What is Perp-to-spot volume ratio?
The perp-to-spot volume ratio is dollars traded on a coin's perpetual futures contract divided by dollars traded on its spot pair over the same period. On Binance bitcoin's daily ratio sits near 8: about nine dollars in ten of turnover are on the perpetual. It says where the dollars traded, not how much leverage was behind them.
Exchanges publish a daily volume for the spot pair and for the perpetual, both in quote currency, so dividing one by the other is a clean comparison of the two markets for the same coin. The ratio has climbed structurally — bitcoin's median on Binance was about 4 in 2020 and 9 in 2026, ether's 2 and 13 — so a reading is only meaningful against the coin's own recent history, and a threshold from one year is wrong in the next. Traders read it as a quality gauge on a move: a rally with the ratio below normal is called 'spot-led' (real coins bought, healthy) and one above normal 'perp-led' (leverage, fragile). Six and a half years of Binance data do not support the labels. On bitcoin the month after a spot-led 3% up day averaged +4.7% and after a perp-led one +5.1%; ether and solana disagree with each other on which is better, and the sign flips from year to year. Two things the ratio does show: it falls on big days, because spot volume rises more than perp volume on a 5% move, and it rises at the end of a fall, because spot goes quiet first.
For example
On 10 October 2025 bitcoin's Binance perpetual traded $45.1bn and its spot pair $7.3bn, a ratio of 6.1 against a trailing 90-day median of 8.3. The largest liquidation cascade in the record was, by this measure, a more spot-heavy day than usual — the forced selling ran through the perpetual and the buying of what it sold happened in bitcoin.
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Explore Premium →Why it matters to you
It is the one number that checks the assumption under every other perpetual metric: that the perpetual is where the market is. It also carries the clearest lesson in venue-level volume — the biggest move bitcoin's ratio ever made was a nine-month fee promotion, not a change in demand — so it teaches you to check an exchange's pricing before reading its volume.
⚠ Reading a rising ratio as froth
A ratio well above its 90-day median has usually arrived after a losing month, because spot volume dries up after a fall faster than perpetual volume does. In the data the month that followed was, on average, a recovery — +5% on bitcoin, up 60% of the time. The reading describes a drawdown that has already happened; it is not a warning of one to come.