越跌越买？科创半导体ETF（588170）溢价频现，机构称国产光刻机产业有望加速崛起

Group 1 - The Shanghai Stock Exchange Sci-Tech Innovation Board Semiconductor Materials and Equipment Theme Index decreased by 0.53% as of July 17, 2025, with mixed performance among constituent stocks [1] - The Sci-Tech Semiconductor ETF (588170) fell by 0.69%, with the latest price at 1.01 yuan, but it has seen a cumulative increase of 5.86% over the past month, ranking in the top half among comparable funds [1] - Despite recent adjustments in the semiconductor sector, the Sci-Tech Semiconductor ETF has experienced continuous net inflows over the past four days, totaling 24.38 million yuan, with a peak single-day net inflow of 16.21 million yuan [1] Group 2 - The Sci-Tech Semiconductor ETF (588170) tracks the Shanghai Stock Exchange Sci-Tech Innovation Board Semiconductor Materials and Equipment Theme Index, encompassing hard-tech companies in the semiconductor equipment and materials sectors [2] - The semiconductor equipment and materials industry is a significant area for domestic substitution, characterized by low domestic substitution rates and high potential for domestic replacement, benefiting from the expansion of semiconductor demand driven by the AI revolution [2] - The demand for domestic lithography machines is expected to rise due to the construction boom of domestic wafer fabs and the rapid development of AI, with lithography machine acquisition costs accounting for 21%-23% of total equipment investment [1][2]