Basis Risk
Basis risk is the financial risk that the price difference between a derivative and its underlying asset will not move as expected, or will move in a way that negatively impacts a hedged position. In crypto hedging, if a trader shorts a futures contract to hedge a spot position, they are exposed to basis risk if the spread widens or narrows unexpectedly.
This can happen due to liquidity shocks, sudden changes in funding rates, or decoupling of the exchange's index price from the broader market. Even in a theoretically neutral position, basis risk can erode profits or lead to unexpected losses.
It is a critical component of risk management for institutions and professional traders. Understanding the factors that influence the basis is necessary to mitigate this exposure.