According to the announcement from Binance, the exchange will update the Cross Margin Borrow and Transfer-out collateral ratio, the Portfolio Margin collateral ratio, and the Tiered Collateral Ratio for Portfolio Margin Pro for several assets from 2026-09-25 06:00 (UTC). The update is expected to be completed within approximately 30 minutes. Under Cross Margin and Portfolio Margin, ENA and BCH will each move from 50% to 60%, while GAS, NEWT, ORCA, SFP, and UMA will each change from 30% to 10%. For 1MBABYDOGE and KAVA, the collateral ratio will increase from 10% to 30%. Binance said the Cross Margin Borrow and Transfer-out collateral ratio update will affect only the amount that can be borrowed or transferred out under Cross Margin. It also noted that collateral ratio and leverage changes under Portfolio Margin will affect the Unified Maintenance Margin Ratio, or uniMMR, and users should monitor uniMMR closely to reduce the risk of liquidation or losses tied to changes in collateral ratio and leverage.
For Portfolio Margin Pro, Binance will also revise ENA’s tiered collateral structure. The announcement shows that the rank floor, cap, and collateral ratio will change across multiple tiers, including 80 to 200,000 at 100%, 200,000 to 400,000 at 80%, 400,000 to 800,000 at 70%, 800,000 to 1,000,000 at 40%, and 1,000,000 to 99,999,999,999 at 20%. Additional tiers listed in the update include 70 to 800,000 at 100%, 800,000 to 1,200,000 at 95%, 1,200,000 to 2,000,000 at 75%, and 2,000,000 to 99,999,999,999 at 50%. Binance said the changes are part of its margin risk management framework and apply to the assets and margin products specified in the notice.