The CSI STAR Market Composite Index ETF, administered by Harvest Fund, experienced a sudden and steep surge in late trading on July 25, ultimately closing at the daily '20cm' limit-up price. According to reliable sources, this unusual premium transaction took place in the final minute before market close, and it is widely believed to have been the result of a customer misoperation. Notably, the transaction volume was exceptionally small and is not anticipated to have a significant impact on the market or other investors. Given the proximity to the market close, demand from both buyers and sellers was subdued, which likely contributed to the price deviation. It is expected that the ETF's price will revert to normal levels naturally upon the market's opening the following day.