[Binance Updates Margin and Leverage Rules: Multi-Asset Collateral Rates Lowered, Multi-Currency Contract Leverage Adjusted] BlockBeats News, June 17 — According to a Binance announcement, the platform will update the multi-asset collateral rates under Portfolio Margin and simultaneously adjust the leverage and margin tier structure for several USDⓈ-M perpetual contracts starting June 19, 2026. The adjustments are expected to be completed within approximately 30 minutes to 1 hour. In terms of Portfolio Margin, the collateral rates for assets such as ADA and FDUSD will be lowered. Specifically, the collateral rate for ADA will be adjusted from 90% to 85%, and the collateral ratios for FDUSD across different position tiers will also be reduced. The official notice highlights that this adjustment will impact the Unified Maintenance Margin Rate (uniMMR), and users should monitor risk changes to avoid potential liquidation risks. For USDⓈ-M perpetual contracts, the leverage and margin tiers for multiple trading pairs, including SIREN, VELVET, RESOLV, TRUST, THE, MAV, SANTOS, ORDI, DIA, and INX, will be updated simultaneously. The high-leverage tiers for most tokens will be compressed, while the maintenance margin rate will be increased or the maximum leverage multiple will be reduced to mitigate system risk exposure during extreme market conditions. The announcement specifically reminds users that the adjustments will take effect at 06:30 (UTC) on June 19. System changes may impact existing positions and grid trading strategies, and some strategies may require manual adjustments by users in advance. Binance stated that this update aims to optimize the risk control system and enhance overall market stability.