药捷安康股价坐过山车 ETF被动“抬轿”又“踩雷”

Core Insights - The stock price of the Hong Kong innovative drug company, Yaojie Ankang, has experienced significant volatility, drawing widespread market attention due to its recent inclusion in multiple indices, including the Guozheng Hong Kong Stock Connect Innovative Drug Index [1][2] Group 1: Company Overview - Yaojie Ankang, listed on June 23, 2025, is a biopharmaceutical company focused on developing innovative therapies for tumors, inflammation, and cardiovascular metabolic diseases [2] - Since its listing, Yaojie Ankang's stock price had been steadily increasing until its inclusion in the Hong Kong Stock Connect on September 8, which triggered a surge in buying activity [2][3] Group 2: Stock Performance - Following its inclusion in the indices, Yaojie Ankang's stock price surged by 77.09% on September 12 and further increased by 115.58% on September 15 [2][3] - However, on September 16, the stock price plummeted by 53.73%, dropping from 679.5 HKD per share to 192 HKD per share, illustrating extreme volatility [2][3] Group 3: Index Inclusion and ETF Impact - The inclusion of Yaojie Ankang in the Guozheng Hong Kong Stock Connect Innovative Drug Index led to passive buying from ETFs, with one ETF purchasing 3 million shares, amounting to approximately 578 million HKD, which represented about 2.62% of the fund's net value [3][4] - The total scale of the five ETFs tracking the Guozheng Hong Kong Stock Connect Innovative Drug Index is approximately 35.963 billion HKD, suggesting a passive buying amount of around 940 million HKD [3][4] Group 4: Index Adjustment Controversy - The adjustment process for the Guozheng Hong Kong Stock Connect Innovative Drug Index has faced criticism for lacking transparency, as the index company did not announce Yaojie Ankang's inclusion in advance, impacting investors' awareness [4][5] - Concerns have been raised regarding the index's sample selection criteria, as Yaojie Ankang had been listed for less than three months and did not fully meet the requirements regarding average daily trading volume [5] Group 5: Market Dynamics and ETF Influence - The expansion of ETFs has significantly increased their influence on market dynamics, with passive funds becoming a powerful force affecting stock price movements [6][7] - As ETF sizes surpass 5 trillion HKD, the impact of passive buying and selling on individual stocks is expected to intensify, particularly during quarterly adjustments [6][7]