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Binance announced in a press release that it will update collateral ratios under Portfolio Margin for selected assets and revise leverage and margin tiers for multiple USDⓈ-M perpetual contracts on October 7 and October 10, 2025 (UTC).
According to Binance, the update phases begin on October 7, 2025, at 06:00 (UTC) and continue on October 10, 2025. These updates will adjust Portfolio Margin collateral ratios and revise leverage and maintenance-margin tiers across several USDⓈ-M Perpetual pairs. The company states the collateral-ratio changes will finish in approximately 30 minutes, while leverage/margin-tier updates will complete in about one hour. Existing positions will be affected, and running grid strategies may expire; users are advised to monitor their Unified Maintenance Margin Ratio (uniMMR) and adjust positions ahead of the cutovers to mitigate liquidation risk under the new parameters.
Binance lists specific collateral-ratio changes: ZEC rises from 10% to 20% on October 7 at 06:00 (UTC). On October 10 at 06:00 (UTC), XEC changes from 35% to 20%; OSMO from 30% to 20%; and STORJ, TLM, and LQTY each decline from 30% to 15%. The exchange also details revised leverage bands and maintenance margin rates by notional tiers for affected contracts such as DAMUSDT, 1000SATSUSDT, JASMYUSDT, SFPUSDT, BSVUSDT. Several high-leverage brackets are narrowed or shifted to lower notionals.
