Futures Basis
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Basis = (perpetual mark price / spot index price − 1) × 100%. Not an annualized delivery-futures basis.
Futures basis: premium and discount
Basis is the difference between the perpetual futures mark price and the spot index price, shown as a percentage. A positive basis (premium) signals leveraged demand for longs, while a negative basis (discount) signals aggressive shorting.
FAQ
What is basis in crypto futures?
Basis is the gap between a futures price and its underlying spot price. FuturesLens calculates it as (mark price − index price) / index price.
How is basis related to the funding rate?
Funding is largely derived from the premium, so a persistent positive basis usually comes with positive funding.
Is FuturesLens a free Coinalyze or CoinGlass alternative?
Yes. FuturesLens is a free Coinalyze alternative and free CoinGlass alternative for crypto futures analytics. Open interest, funding rate, liquidations, long/short ratio, basis, CVD and volume delta are available without an account, loaded directly from public Binance, Bybit and Gate.io market data.