What is the Funding Rate?
The funding rate is a unique mechanism in perpetual futures, designed to keep contract prices aligned with spot market prices. Through the funding rate, long and short position holders periodically pay or receive fees from each other. BitTap periodically adjusts the funding rate based on market conditions to ensure that the price of perpetual futures remains close to the spot price.
Purpose of the Funding Rate
The primary purpose of the funding rate is to balance the price of perpetual futures with the spot market price. When the market is dominated by long positions, the funding rate is positive, requiring longs to pay shorts. When short positions dominate, the funding rate is negative, requiring shorts to pay longs. This mechanism prevents significant price deviations between the futures contract and the spot market.
How is the Funding Rate Settled?
The funding rate typically settles every 8 hours. At the settlement time, users with open long or short positions will either pay or receive a fee based on the current funding rate. If there is no open position at settlement, no funding fees are paid or received.
Funding Rate Calculation Formula:
Funding Fee=Position Size×Contract Notional Value×Funding Rate\text{Funding Fee} = \text{Position Size} × \text{Contract Notional Value} × \text{Funding Rate}
- Position Size: The number of contracts held by the trader.
- Contract Notional Value: The total value of the futures contract, typically equal to the contract quantity multiplied by the market price.
- Funding Rate: A rate automatically adjusted by the platform based on market conditions.
Example:
If a user holds a long position worth 10,000 USDT and the funding rate is 0.01%, then at each funding settlement, the user pays a funding fee of:
10,000×0.0001=1 USDT10,000 × 0.0001 = 1 \text{ USDT}
If the funding rate is negative, the user would receive a funding fee of 1 USDT.
Factors Affecting the Funding Rate:
- Market Sentiment: When long or short positions are heavily concentrated, the funding rate fluctuates.
- Market Volatility: Significant price swings in the market can cause funding rate volatility.
- Liquidity: Higher market liquidity usually results in more stable funding rate adjustments.