有色板块走强，有色金属ETF(512400)上涨3.15%，连续4日获资金净流入，黄金成全球最大储备资产

Group 1 - The core viewpoint of the news highlights the significant performance of the non-ferrous metal ETF (512400), which rose by 3.15% with a trading volume of 1.07 billion yuan, indicating strong market interest and activity [1] - The non-ferrous metal ETF has seen continuous net inflows over the past four days, reflecting positive investor sentiment towards the sector [2] - The People's Bank of China has increased its gold reserves to 74.15 million ounces by the end of 2025, marking a 3,000-ounce increase from the previous year, and has been consistently adding to its gold holdings for 14 months [2] Group 2 - The Producer Price Index (PPI) has shown a month-on-month increase for three consecutive months, with a 0.2% rise in December, driven by improved supply-demand dynamics in certain industries, including non-ferrous metals [3] - Copper prices are expected to continue their upward trend due to tight global inventories and stable demand, despite some short-term fluctuations [3] - The non-ferrous metal index, which the ETF tracks, includes 50 listed companies, with major weights held by Zijin Mining, Luoyang Molybdenum, and Northern Rare Earth, among others [3]