According to @dydxfoundation, the dYdX community has approved upgrading the ASTER-USD perpetual market from isolated margin to cross margin via Governance Proposal 289. Source: dYdX Foundation on X (Sep 30, 2025); Mintscan dYdX Chain Proposal 289. Under cross margin on dYdX, account equity can be shared across positions, improving capital efficiency compared with isolated margin while allowing losses in other positions to impact ASTER-USD margin health. Source: dYdX Documentation (Margin and Liquidation). Traders can size ASTER-USD positions using portfolio collateral but should monitor account-level initial and maintenance margin to avoid liquidations triggered by drawdowns elsewhere. Source: dYdX Documentation (Margin and Liquidation). The on-chain record and status for the ASTER-USD upgrade are available under Proposal 289 on the dYdX Chain explorer. Source: Mintscan dYdX Chain Proposal 289. Following activation, the market’s risk parameters will be governed by dYdX’s cross-margin risk engine settings for that market. Source: dYdX Documentation (Risk Parameters).