部分跨境ETF午后大涨，港股通50ETF涨停

Group 1 - The core viewpoint of the news highlights a significant increase in cross-border ETFs, with the Hong Kong Stock Connect 50 ETF hitting the upper limit, while the Hong Kong Stock Connect 100 ETF and Hang Seng ETF saw gains exceeding 7%, albeit with substantial premiums [1] - Due to the Christmas holiday, the Hong Kong stock market will be closed from December 24 (Wednesday) afternoon, with trading resuming on December 29 (Monday) [1] Group 2 - Specific performance data shows the following ETFs: - Hong Kong Stock Connect 50 ETF (code: 159712) rose by 10.03% to a price of 1.426 with a premium rate of 10.39% [2] - Hong Kong Stock Connect 100 ETF (code: 159788) increased by 8.19% to 1.467 with a premium rate of 9.22% [2] - Hang Seng ETF (code: 159312) gained 7.50% to 1.347 with a premium rate of 7.59% [2] - Other ETFs also showed positive performance, with varying increases and premium rates [2] - Analysts suggest that investors should be cautious of the premium risk in the secondary market, as purchasing at high premiums may lead to significant losses [2]