Basis is usually quoted as an annualised percentage so contracts of different maturities can be compared. A positive basis, where futures trade above spot, is the normal state in a market where traders want leveraged upside exposure and are willing to pay for it. A negative basis signals the opposite: hedging or bearish positioning dominant enough to push the contract below the asset.
The gap is also a tradable yield. Buying spot while selling the futures contract locks in the basis as a return regardless of price direction, a trade known as cash-and-carry, and it is one route by which institutional capital enters the market. Heavy basis trading tends to compress the spread, so a persistently wide basis indicates demand for leverage exceeding the capital available to arbitrage it.
What does a widening basis indicate?
Rising demand for leveraged long exposure — traders are paying an increasing premium over spot for futures. It is generally read as a sign of speculative appetite building.
Last updated October 17, 2026