Bitget to optimize the funding rate calculation methodology

Dear Bitget user,

To further improve the accuracy and stability of funding rate calculations, Bitget will optimize the sampling methodology used for the premium index average in futures funding rate calculations.

 

Effective date

July 9, 2026 (UTC+8). The exact release time is subject to the actual deployment schedule.

 

Details

This adjustment affects the sampling frequency and sampling window of the premium index average used in funding rate calculations. For more details about the premium index average, please refer to What Are Funding Rates in Bitget Futures Trading?

Item	Before adjustment	After adjustment
Premium index sampling frequency	Sampled once every 1 minute	Sampled once every 5 seconds
Premium index sampling window	Only premium index samples from the current funding rate settlement cycle are used. Samples from the previous settlement cycle are excluded. For example, if the settlement cycle is 8 hours and settlement occurs at 8:00 AM, the sampling window for calculating the average at 12:00 PM is 8:00 AM–12:00 PM.	Premium index samples from the previous settlement cycle are also included when calculating the current cycle's premium index average. For example, if the settlement cycle is 8 hours and settlement occurs at 8:00 AM, the sampling window for calculating the average at 12:00 PM is 4:00 AM–12:00 PM.

 

Explanation

Funding rates are typically determined by a combination of factors, including the interest rate and the premium index. Among these, the premium index average is one of the key inputs used in funding rate calculations.

After this optimization, Bitget will increase the premium index sampling frequency from once per minute to once every 5 seconds, allowing the premium index average to reflect market price movements more accurately.

In addition, when calculating the premium index average for the current funding rate settlement cycle, Bitget will incorporate premium index samples from the previous settlement cycle. This enhances the continuity and smoothness of funding rate calculations while reducing the impact of short-term fluctuations caused by settlement cycle transitions.

 

Impact

1.        This adjustment affects only the premium index sampling methodology used in the funding rate calculation logic. 

2.        This adjustment will not affect users' trading, positions, open orders, or asset security. 

3.        After the adjustment goes live, funding rates may vary due to the increased sampling frequency and the change in the sampling window. Users are advised to monitor funding rate changes for the relevant futures. 

 

Risk warning

Futures trading carries significant risk. Funding rates may change due to factors such as market volatility and deviations between futures prices and index prices. Please ensure you fully understand the relevant rules and risks, manage your positions prudently, and trade with caution.

 

Thank you for supporting Bitget.

Bitget Team