Economic Observation Network On July 16th, near the end of trading, several broad-based ETFs including CSI 300 ETF Huatai Bairui, CSI 1000 ETF South, and CSI 500 ETF South showed significant buying activity. The trading volume of CSI 300 ETF Huatai Bairui and CSI 1000 ETF South increased significantly compared to yesterday, from 3.498 billion yuan and 3.669 billion yuan yesterday to 7.909 billion yuan and 5.645 billion yuan respectively. Semiconductor, chip and other themed ETFs fell more than 5% today, with a cumulative decline of over 20% since July; The Internet sector of Hong Kong stocks continued to recover. Since July, many Internet themed ETFs in Hong Kong stocks have risen by more than 17% in total. (China Securities Journal)