Funding Rate Basis

Concept

The funding rate basis refers to the spread or difference between the funding rate of a perpetual futures contract and a benchmark interest rate or a risk-free rate. It essentially measures the premium or discount embedded in the perpetual swap’s funding mechanism relative to general market interest rates. This basis can be positive or negative, reflecting whether longs or shorts are paying the funding fee. It is a critical metric for assessing the cost of carry in crypto derivatives.