Binance has announced significant updates to the collateral ratios and leverage tiers for Portfolio Margin (PM) and PM Pro contracts, effective October 28th and 31st, 2025. These adjustments will impact a diverse range of assets across both services. On October 28th, ZEC, FIL, ALGO, A, RUNE, AR, LUNC, THETA, ICP, NEO, PNUT, SPK, CHZ, and NOT will see changes in their collateral ratios. Notably, ZEC’s ratio will increase from 20% to 30%, while FIL’s will decrease from 70% to 50%. Similarly, ALGO’s ratio will drop from 60% to 50%, and A’s from 65% to 45%. Other assets like RUNE, AR, LUNC, THETA, ICP, NEO, PNUT, SPK, CHZ, and NOT will also see reductions. **On October 31st,** further adjustments will impact PM Pro assets. ZEC, RUNE, A, LUNC, AR, and CHZ will have their collateral ratios modified across various rank floors and caps. For example, ZEC’s ratio could range from 10% to 80% depending on the rank floor and cap. RUNE’s collateral ratio will vary from 10% to 100%, while A, LUNC, AR, and CHZ will see ratios between 10% and 100%. Binance Futures will also update leverage and margin tiers for several USD-M Perpetual Contracts, including CHILLGUYUSDT, FLOCKUSDT, FIDAUSDT, NEWTUSDT, INITUSDT, KAVAUSDT, ZKCUSDT, COSUSDT, 1000000BOBUSDT, BIDUSDT, DEGOUSDT, KDAUSDT, LIGHTUSDT, EVAAUSDT, CLOUSDT, and KGENUSDT. These changes will affect existing positions and could lead to the expiration of futures running grids. Users are advised to adjust their positions appropriately to avoid liquidation or losses due to collateral ratio changes and leverage tier adjustments.