PANews reported on May 5th that Binance has released a significant update to its commodity-based TradeFi perpetual contract price index calculation model. Starting May 9th, 2026 at 05:00 (UTC+8), Binance will adopt the EWMA (Early Wage Margin) price index calculation model to replace the fixed model used for calculating the price index of commodity-based TradeFi perpetual contracts during daily maintenance, holidays, and weekends. The EWMA price index calculation model will be applied to all commodity-based TradeFi perpetual contracts, including XAUUSDT, XAGUSDT, XPTUSDT, XPDUSDT, COPPERUSDT, CLUSDT, BZUSDT, NATGASUSDT, and future commodity-based TradeFi perpetual contracts listed on Binance Futures. Equity-based TradeFi perpetual contracts will continue to use the fixed model during daily maintenance, holidays, and weekends until further notice. A separate announcement will be made if Binance adopts the EWMA price index calculation model.