半导体设备ETF（159516）近20日资金净流入超78亿元，半导体行业边际预期正向上加速

Group 1 - The core viewpoint is that the semiconductor industry is experiencing a positive shift in marginal expectations, moving from concerns about a peak cycle and AI bubble to confidence in long-term growth driven by AI and an accompanying capital expenditure cycle [1] - The semiconductor equipment ETF (159516) has seen a net inflow of over 7.8 billion yuan in the past 20 days, indicating a strong market interest in the sector [1] - TSMC's optimistic outlook is expected to lead to a revaluation of the semiconductor industry, with domestic wafer fabs anticipated to expand production this year [1] Group 2 - The semiconductor materials and equipment index (931743), which the semiconductor equipment ETF tracks, focuses on companies involved in the production and processing of semiconductor materials and manufacturing of semiconductor equipment [1] - The national strategy emphasizes self-sufficiency, highlighting opportunities in domestic chip manufacturers, equipment suppliers, domestic computing power, and semiconductor material replacements [1]