Funding Rates in Perpetual Futures
Funding rates are a core mechanism in perpetual futures contracts designed to keep the price of the futures contract aligned with the underlying asset's spot price
12. Unlike traditional futures, perpetual contracts do not have an expiration date, so this mechanism is necessary to prevent long-term divergence between the two prices
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How Funding Rates Work
Funding rates are periodic payments made between traders who hold long positions (buyers) and those who hold short positions (sellers)
14. The rate fluctuates based on the difference between the perpetual contract's price and the underlying asset's spot price
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The primary function of the funding rate is to incentivize traders to open positions that will help bring the perpetual futures price back toward the spot price
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Positive Funding Rate
- Condition: The perpetual futures price is trading at a premium, meaning it is higher than the spot price of the corresponding asset 532.
- Payment: Long positions pay the funding rate to short positions 516.
- Incentive: This encourages traders to open more short positions, which helps push the futures price down toward the spot price 5.
Negative Funding Rate
- Condition: The perpetual futures price is trading at a discount, meaning it is lower than the spot price of the corresponding asset 52.
- Payment: Short positions pay the funding rate to long positions 512.
- Incentive: This encourages traders to open more long positions, which helps push the futures price up toward the spot price 5.
Key Characteristics
- Payment Exchange: The funding rate is a fee exchanged directly between the long and short parties of the contract; it is not a fee collected by the exchange 2.
- Market Momentum: Funding rates can be earned when a user trades in the opposite direction of the market's momentum . For example, if the majority of traders are long on an asset, the futures contract will trade at a premium with a positive funding rate, and a user who shorts the asset will be paid to hold that position .
- Components: The funding rate typically consists of two main components: the interest rate (reflecting the cost of capital) and the premium index 14.
- Volatility: While funding rates may exhibit sharp behavior during times of market volatility, they usually revert closer to zero or positive and display mean-reverting characteristics 4.
- Misconception: A common misconception is that a positive funding rate indicates more long positions than short positions, or vice versa. However, funding rates examine the mark price of the perpetual futures contract relative to the oracle price, not the ratio of longs to shorts 5.