上期所：铸造铝合金期货交易保证金为合约价值的9%（套保交易保证金为合约价值的8%）；涨跌停板幅度为±7%，首日涨跌停板幅度为其2倍。

Core Viewpoint - The Shanghai Futures Exchange has set the trading margin for aluminum alloy futures at 9% of the contract value, with a lower margin of 8% for hedging transactions, and established a price fluctuation limit of ±7%, which is doubled on the first trading day [1] Summary by Category - Trading Margin - The trading margin for aluminum alloy futures is established at 9% of the contract value [1] - For hedging transactions, the margin is set at 8% of the contract value [1] - Price Fluctuation Limits - The price fluctuation limit for aluminum alloy futures is ±7% [1] - On the first trading day, the price fluctuation limit is doubled [1]