铝：区间震荡，氧化铝：过剩仍在，铸造铝合金：成本支撑

Report Summary 1) Report Industry Investment Rating - Aluminum: Range-bound [1] - Alumina: Excess persists [1] - Cast aluminum alloy: Cost-supported [1] 2) Core Viewpoints - The report updates the fundamental data of aluminum, alumina, and cast aluminum alloy, including futures market prices, trading volumes, positions, spreads, and spot market prices, costs, and inventories [1]. 3) Summary by Relevant Catalogs Futures Market - Aluminum: The closing price of the Shanghai aluminum main contract was 20,785 yuan, down 125 yuan from the previous day; the LME aluminum 3M closing price was 2,705 US dollars, up 16 US dollars [1]. - Alumina: The closing price of the Shanghai alumina main contract was 2,931 yuan, down 14 yuan; the trading volume was 433,801 lots, down 15,367 lots [1]. - Aluminum alloy: The closing price of the aluminum alloy main contract was 20,320 yuan, down 140 yuan; the trading volume was 277 lots, down 2,006 lots [1]. Spot Market - Aluminum: The domestic aluminum ingot social inventory was 636,000 tons, up 7,000 tons; the LME aluminum ingot inventory was 513,900 tons, up 30,100 tons [1]. - Alumina: The domestic average alumina price was 3,066 yuan, down 7 yuan; the alumina price at Lianyungang's arrival port was 349 US dollars/ton, unchanged [1]. - Aluminum alloy: The theoretical profit of ADC12 was 0 yuan, down 141 yuan; the price of Baotai ADC12 was 20,400 yuan, down 100 yuan [1]. Other Information - Overseas investors' holdings of US Treasury bonds reached a new high in July. Japan's holdings hit a new high in over a year, China's holdings hit a new low in over sixteen years, and Canada's holdings decreased sharply by 57.1 billion US dollars [3]. - The trend strength of aluminum, alumina, and aluminum alloy is all 0, indicating a neutral outlook [3].