Binance to Adjust Portfolio Margin Collateral Ratios and USD-M Perpetual Contract Tiers

According to the announcement from Binance, the exchange will update collateral ratios and tiered collateral ratios for Portfolio Margin Pro across several assets under Portfolio Margin from 2026-07-31 06:00 (UTC). The update is expected to be completed within approximately 30 minutes. Under Portfolio Margin, STX and SANTOS will each move from a 30% collateral ratio to 10%, while EURI will change from 20% to 30%. For PM Pro, Binance said the collateral and tier structure will also be revised for STX, WBTC, and SXT, RUNE, IMX, COMP, BERA, SKL, ENJ, and BIO. The changes include updated rank floors, caps, and collateral ratios at 2026-07-31 06:00 (UTC), with STX and WBTC receiving revised tiers across multiple position ranges and the listed altcoins adjusting their PM Pro collateral structure as well. Binance said the collateral ratio changes will affect the Unified Maintenance Margin Ratio, or uniMMR, which users should monitor closely.

Binance also said it will update leverage and margin tiers for several USD-M Perpetual Contracts at 2026-07-31 06:30 (UTC), with the process expected to take approximately one hour. The affected contracts include STXUSDT; CHRUSDT, IDOLUSDT, HIVEUSDT, STEEMUSDT, CTKUSDT, and WAXPUSDT; ICXUSDT, CETUSUSDT, BREVUSDT, METISUSDT, CTSIUSDT, ILVUSDT, and COTIUSDT; MOVEUSDT; STORJUSDT; and BOTUSDT, WENUSDT, SHAZUSDT, and PENGUSDT. Binance said existing positions opened before the update will be affected. The revised tiers reduce leverage limits and adjust position bands and maintenance margin rates for each contract, including lower maximum leverage ranges for some contracts and new notional-value thresholds for others. The announcement also noted that Futures running grid may expire because of the tier updates, and users may need to adjust positions before the change takes effect.