[Hyperliquid to Introduce Portfolio Margin Mechanism in Upgrade] Foresight News reports that Hyperliquid has announced its blockchain will add a portfolio margin feature in the upcoming network upgrade, which has already been launched in the pre-alpha version on the testnet. Under the portfolio margin model, users' spot trading and perpetual trading are combined to improve capital efficiency. Additionally, portfolio margin accounts will automatically earn returns on all borrowable assets not used for trading.