铝：区间震荡，氧化铝，震荡磨底，铸造铝合金：跟随电解铝

Report Summary 1. Industry Investment Ratings - Aluminum: Range-bound oscillations [1] - Alumina: Oscillating at the bottom [1] - Cast aluminum alloy: Following the trend of electrolytic aluminum [1] 2. Core Views - The report updates the fundamental data of aluminum, alumina, and cast aluminum alloy, including futures and spot market prices, trading volumes, positions, spreads, and inventory levels [1]. - The market trends of aluminum, alumina, and cast aluminum alloy are analyzed, with aluminum expected to range - bound, alumina to oscillate at the bottom, and cast aluminum alloy to follow electrolytic aluminum [1]. - The Fed's interest - rate decision is in a "four - way battle" situation, and the strong growth of US retail sales in August may influence the Fed's decision [3]. 3. Summary by Relevant Catalogs Futures Market - Aluminum: The closing price of the SHFE aluminum main contract was 20,975 yuan, down 45 yuan from the previous day; the LME aluminum 3M closing price was 2,712 US dollars, up 8 US dollars. Trading volume and open interest showed different changes compared with previous periods [1]. - Alumina: The closing price of the SHFE alumina main contract was 2,979 yuan, up 44 yuan. Trading volume increased significantly, while open interest decreased slightly [1]. - Aluminum alloy: The closing price of the aluminum alloy main contract was 20,480 yuan, down 65 yuan. Trading volume and open interest also had corresponding changes [1]. Spot Market - Aluminum: The electrolytic aluminum enterprise profit was 4,562.01 yuan, up 19.25 yuan. Domestic aluminum ingot social inventory was 629,000 tons, unchanged from the previous day [1]. - Alumina: The domestic average price of alumina was 3,083 yuan, down 11 yuan. The profit of Shanxi alumina enterprises was 28 yuan, down 10 yuan [1]. - Aluminum alloy: The theoretical profit of ADC12 was 170 yuan, up 8 yuan. The three - place inventory totaled 48,620 tons, up 102 tons [1]. Other Information - Trend Intensity: The trend intensity of aluminum, alumina, and aluminum alloy is all 0, indicating a neutral trend [3]. - US Economic News: The Fed's interest - rate decision has a "four - way battle" situation. US retail sales in August increased by 0.6% month - on - month, with strong consumer spending potentially influencing the Fed's decision [3].