How basis works in crypto
Basis is the price gap between a derivative and the spot price of the same asset. In crypto it usually means the difference between a future or perpetual and spot. When the future trades above spot the basis is positive (contango), reflecting bullish positioning or the cost of carry; when below, it is negative (backwardation). The basis converges to zero as a dated future approaches expiry.
Worked example
Spot Bitcoin is $60,000 and a three-month future trades at $63,000, a positive basis of $3,000, or about 5% annualised. A basis trader could buy spot and sell the future, locking in that $3,000 as the gap closes by expiry, a market-neutral carry trade. The risk is funding and liquidation if the legs are leveraged, and the gap moving against the position before it converges.
Basis as a market read
Basis is also a sentiment gauge: a high positive basis signals aggressive bullish leverage, which can unwind sharply, while a negative basis suggests fear. On Volity, you express directional crypto views through spot or CFDs rather than running complex basis trades, but reading the basis on futures elsewhere helps you judge how stretched leveraged positioning has become. It is leverage made visible.
Why it matters
Basis reveals how much leverage and which direction the derivatives market is leaning, so a wide positive basis is a warning that bullish positioning is crowded and fragile. Read it as a sentiment signal. Related: funding rate and perpetual contract.
Learn more in our crypto trading guide.
