铝：下方支撑，氧化铝：过剩格局未改，铸造铝合金：跟随电解铝

1. Report Industry Investment Rating - Not provided in the given content 2. Core Viewpoints of the Report - Aluminum has support at the lower level, the over - supply pattern of alumina remains unchanged, and cast aluminum alloy follows the trend of electrolytic aluminum [1] - The trend intensities of aluminum, alumina, and aluminum alloy are all 0, indicating a neutral outlook [2] 3. Summary by Relevant Catalogs 3.1 Futures Market - Aluminum: The closing price of the Shanghai Aluminum main contract is 21,465, with a change of 325 compared to the previous day. The LME Aluminum 3M closing price is 2,866, down 43 from the previous day. The trading volume and open interest of the Shanghai Aluminum main contract have decreased [1] - Alumina: The closing price of the Shanghai Alumina main contract is 2,770, down 19 from the previous day. The trading volume has decreased significantly, while the open interest has increased [1] - Aluminum Alloy: The closing price of the aluminum alloy main contract is 20,960, down 105 from the previous day. The trading volume and open interest have changed accordingly [1] 3.2 Spot Market - Aluminum: The electrolytic aluminum enterprise profit is 195.12, and the aluminum spot import profit and loss is - 2,318.36. The domestic aluminum ingot social inventory is 614,000 tons, with a slight change [1] - Alumina: The domestic average price of alumina is 2,896, down 4 from the previous day. The import price from Australia and other regions has also changed [1] - Aluminum Alloy: The theoretical profit of ADC12 is - 21, and the price of Baotai ADC12 is 20,900, with a significant change compared to the previous day [1]