Basis = Futures price – Spot price = 51,000 – 50,000 = 1,000 Time as a factor in basis risk: Time to expiry is a key factor in basis risk. As a futures contract approaches its expiration, the futures price typically converges with the spot price, reducing the basis. However, before expiry, factors like market sentiment, interest rates, or liquidity can cause basis fluctuations and increase risk.