半导体板“估值扩张”行情有望延续，半导体产业ETF(159582)盘中反弹向上，科创芯片ETF博时(588990)近1年净值上涨98.56%

Market Performance - As of August 21, 2025, the semiconductor industry index (931865) increased by 0.39%, with notable gains from companies such as Cambrian (688256) up 5.13% and Northern Huachuang (002371) up 1.44% [2] - The semiconductor industry ETF (159582) rose by 0.31%, with a latest price of 1.63 yuan, and has accumulated a 6.89% increase over the past week [2] - The STAR Market chip index (000685) saw a 0.75% rise, with Aojie Technology (688220) leading at 12.00% [4] - The STAR Market chip ETF (588990) increased by 0.26%, reaching a price of 1.95 yuan, and has seen a 9.02% rise over the past week [4] - On August 20, the A-share market indices collectively rose, with the semiconductor sector gaining 2.74% [5] Liquidity and Trading Activity - The semiconductor industry ETF had a turnover rate of 8.42% with a transaction volume of 14.72 million yuan, averaging 33.73 million yuan in daily trading over the past week [2] - The STAR Market chip ETF had a higher turnover rate of 25.1%, with a transaction volume of 47.52 million yuan, indicating active market participation [4] Institutional Insights - North American computing power is driving an upgrade in ASIC-driven network architecture, positively impacting the performance of switches and servers [6] - NVIDIA's upward revision of its 2026 GB series shipments and the recovery of non-AI demand from TSMC suggest a continuation of favorable market conditions [6] - The semiconductor sector is experiencing a "valuation expansion" driven by macro policy cycles, inventory cycles, and AI innovation cycles [6] ETF Performance Metrics - The semiconductor industry ETF has seen a net value increase of 61.33% over the past year, with a maximum monthly return of 20.82% since inception [10] - The STAR Market chip ETF has achieved a net value increase of 98.56% over the past year, ranking 76 out of 2965 in its category [15] - Both ETFs have a management fee of 0.50% and a custody fee of 0.10%, which are among the lowest in comparable funds [13][18] Index Composition - The semiconductor industry index includes up to 40 companies involved in semiconductor materials, equipment, and applications, with the top ten stocks accounting for 76.16% of the index [14] - The STAR Market chip index comprises companies from the STAR Market involved in semiconductor materials, equipment, design, manufacturing, and testing, with the top ten stocks representing 57.59% of the index [18]