On August 20th, all three major A-share indices closed higher after an initial rally lost momentum, with combined turnover reaching 2.08 trillion yuan across the two exchanges. Amid this volatile trading, some investors chose to exit their positions, leading to net outflows of nearly 10 billion yuan from stock ETFs (including cross-border ETFs) across the market that day.

Sector-specific ETFs focused on semiconductors and artificial intelligence, alongside broad-based indices like the STAR 50 and SSE 50, recorded the largest inflows. Over the past five trading days, capital inflows into STAR 50 index-related ETFs exceeded 5.6 billion yuan, while ETFs tracking the STAR semiconductor materials and equipment sector attracted over 4.6 billion yuan.

Net outflows approach 10 billion yuan while semiconductor ETFs draw capital

According to Wind data, as of August 20, 2026, the total scale of 1,539 stock ETFs across the market stood at 3.51 trillion yuan, with some capital continuing to exit tactically. The data shows that the total share count of the stock ETF market decreased by 7.686 billion units on August 20th. Based on the average transaction price, net outflows for the day were close to 10 billion yuan, reaching 9.889 billion yuan.

Among these, 19 stock ETFs saw net inflows exceeding 100 million yuan, with the top three being STAR Semiconductor ETF ChinaAMC, SSE 50 ETF ChinaAMC, and STAR 50 ETF E Fund. The entire market saw net outflows of 7.85 billion yuan on August 20th. By category, on the previous trading day, industry-themed ETFs and bond ETFs led in net inflows, with 987 million yuan and 735 million yuan respectively. Conversely, Hong Kong market ETFs saw the largest net outflows at 6.418 billion yuan. In terms of scale changes, commodity ETFs saw their total assets increase by 6.939 billion yuan.

Data from E Fund shows that the top five sectors for inflows that day were semiconductors (net inflow of 4.32 billion yuan), the STAR 50 Index (1.17 billion yuan), the SSE 50 Index (1.16 billion yuan), money market funds (1.11 billion yuan), and artificial intelligence (650 million yuan). On an index-specific basis, the STAR semiconductor materials and equipment sector led in single-day net inflows on August 20th with 1.958 billion yuan, while the CSI 1000 Index saw the largest single-day net outflow at 4.399 billion yuan. From a five-day perspective, capital inflows into the STAR 50 Index surpassed 5.6 billion yuan, and the STAR semiconductor materials and equipment sector saw inflows exceeding 4.6 billion yuan.

Leading fund managers' ETF products attract capital

Data indicates that ETFs under some leading fund companies continue to see steady inflows. As of August 20th, E Fund's ETF scale reached 625.19 billion yuan. Specifically, STAR 50 ETF E Fund reached a scale of 41.57 billion yuan with net inflows of 480 million yuan; CSI 300 ETF E Fund reached 52.08 billion yuan with net inflows of 400 million yuan; Semiconductor Equipment ETF E Fund reached 21.58 billion yuan with net inflows of 370 million yuan; AI ETF E Fund reached 20.86 billion yuan with net inflows of 270 million yuan; and Bank ETF E Fund reached 2.29 billion yuan with net inflows of 100 million yuan.

For ChinaAMC's ETFs, on the previous trading day, STAR Semiconductor ETF ChinaAMC and SSE 50 ETF ChinaAMC led in single-day net inflows, with 1.598 billion yuan and 1.054 billion yuan respectively. Their latest scales were 44.253 billion yuan and 21.788 billion yuan, with corresponding tracked indices having average daily turnovers of 8.708 billion yuan and 1.966 billion yuan over the past month. STAR 50 ETF ChinaAMC and Chip ETF ChinaAMC saw net inflows of 461 million yuan and 305 million yuan respectively, while Semiconductor Equipment ETF ChinaAMC and Gold ETF ChinaAMC both saw net inflows exceeding 100 million yuan.

Lin Weibin, General Manager of the Index Investment Department at E Fund, noted that after the significant correction since July, valuations and trading congestion in some high-prosperity sectors have been partially digested. He believes market pricing logic is likely to shift back towards earnings delivery and fundamental differentiation. In the medium term, technology sectors such as AI computing power and semiconductors remain in a phase of continuous industry prosperity validation, while the importance of corporate earnings quality and valuation matching has increased. Amid greater market volatility, the market trend is expected to gradually shift from being driven by a single risk appetite factor to being driven by earnings and fundamentals. Assets with stable profitability, reasonable valuations, and long-term competitive advantages are becoming more prominent in terms of allocation value.

Looking at the overall picture, August may continue to show structural market movements, with a style that places greater emphasis on matching prosperity with earnings certainty. Looking ahead, Wanjia Fund believes that the implementation of physical workload for major projects like the "six networks" in new and traditional infrastructure may accelerate in the second half of the year. This, coupled with PPI stabilization driving corporate earnings recovery, is expected to support the market, while overseas macroeconomic volatility has a relatively limited impact on domestic markets. Against the backdrop of fluctuating global geopolitical competition and macro liquidity expectations, major A-share broad-based indices are expected to show a pattern of relatively strong oscillation, notably outperforming overseas markets.