Group 1 - The core viewpoint of the article highlights the performance of the Penghua National Semiconductor Chip ETF, which reported a net asset value growth rate of 57.12% over the past year [1] - The largest holding in the fund is Cambricon Technologies (寒武纪), accounting for 12.37% of the portfolio [1] - The report details significant reductions in holdings across various stocks, with Cambricon Technologies seeing a decrease of 32.85% in shares held, valued at 664 million yuan [1] Group 2 - Other notable reductions include Zhongben International (中本国际) with a decrease of 32.75%, holding 4.04 million shares valued at 566 million yuan [1] - Haiguang Information (海光信息) also saw a reduction of 33.13%, with 2.19 million shares valued at 554 million yuan [1] - The report lists multiple companies with similar reductions, indicating a trend of decreased positions in semiconductor-related stocks [1]