Binance announced an adjustment to the tick size for several USDⓈ-M and COIN-M perpetual futures contracts on October 10, 2025. The change aims to increase market liquidity and improve the trading experience, as said on its website.

According to Binance’s support announcement, tick size represents the smallest increment by which a futures contract's price can move. It significantly influences order book formation and pricing precision. By adjusting tick sizes, Binance seeks to encourage tighter spreads, better depth, and more fluid trading behavior in futures markets. These changes will apply to both USD-margined (USDⓈ-M) and COIN-margined (COIN-M) futures to standardize and optimize market dynamics.

As detailed in Binance’s October 8 announcement, the tick size for multiple contracts was modified: COAIUSDT changed from 0.00001 to 0.001; HEMIUSDT and BLESSUSDT shifted from 0.000001 to 0.00001; SOONUSDT moved from 0.00001 to 0.0001; and GMTUSD (COIN-M) was adjusted from 0.0001 to 0.00001. The change took effect on October 10 and was designed to avoid disrupting existing futures trading operations. Binance clarified that orders placed before the change would still match against the original tick size, preserving order continuity.