# Basis > The difference between the spot price of an asset and its futures price. Canonical URL: https://fudfomo.co/glossary/basis Source: What The Block! Dictionary v1.0 (last updated 2026-04-25), browsable at https://wtb.fudfomo.co. ## Definition Basis is the gap between the spot price of an asset and the price of a futures contract on the same asset. When futures trade above spot, basis is positive (contango); when they trade below, it is negative (backwardation). In crypto, basis is widely used as a proxy for market sentiment and as the foundation of carry trades. Traders go long spot and short futures when basis is wide enough to lock in a profit. ## Related terms - [Futures](https://fudfomo.co/glossary/futures): A contract to buy or sell an asset at a fixed price on a future date. - [Perpetual Futures](https://fudfomo.co/glossary/perpetual-futures): A futures contract with no expiry date. Common in crypto, kept in line with the spot price by funding payments. - [Funding Rate](https://fudfomo.co/glossary/funding-rate): A periodic payment between long and short perpetual futures traders that keeps the contract close to spot. - [OTC Desk](https://fudfomo.co/glossary/otc-desk): An over-the-counter trading desk that matches large crypto buyers and sellers off the public exchanges. ## See the full catalogue What The Block! covers more than 2,000 plain-English crypto terms, delivered as embeddable hover-state tooltips for crypto exchanges. https://wtb.fudfomo.co