10月15日恒生指数收盘上涨1.84%，南向资金当日净流出54.43亿港元

Core Points - The Hang Seng Index closed up by 469.25 points, representing a 1.84% increase, ending at 25,910.6 points [1] - The State-Owned Enterprises Index rose by 171.75 points, with a 1.89% increase, closing at 9,250.91 points [1] - The Red Chip Index increased by 55.77 points, marking a 1.4% rise, and closed at 4,045.5 points [1] - Southbound capital experienced a net outflow of 5.443 billion Hong Kong dollars on the same day [1]