BlockBeats News, September 16th, according to an official announcement, Binance has announced that starting from 16:01 on September 18, 2025 (UTC+8), the funding rate calculation formula for Binance Futures will be updated as follows: Funding Rate (F) = [Premium Index (P) + clamp (Interest Rate – Premium Index (P), 0.05%, -0.05%)] / (8/N), where N is the funding rate settlement frequency.
Furthermore, starting from 16:01 on September 18, 2025 (UTC+8), Binance Futures will adjust the mark price by changing the price 2 basis from 1 minute to 30 seconds. The specific adjustments are as follows:
1. After the adjustment, for USDT-Margined and Coin-Margined Perpetual Futures: Mark Price = Median(Price 1, Price 2, Contract Price). Price 2 = Price Index + Moving Average (30-second basis). The Moving Average (30-second basis) is the average of 30 data points within 30 seconds. Data points are calculated every second by taking the average of the buy price and sell price, then subtracting the price index.
2. After the adjustment, for USDT-Margined and Coin-Margined Delivery Futures: Mark Price = Price Index + Moving Average (30-second basis). The Moving Average (30-second basis) = Moving Average ((Best Bid + Best Ask) / 2 – Price Index), calculated every second with a 30-second interval. Data points are calculated every second by taking the average of the buy price and sell price, then subtracting the price index.
