截至发稿，南向资金净买入超90亿港元

Group 1 - The core point of the news is that southbound funds have net purchases exceeding 9 billion Hong Kong dollars as of the report date [1] Group 2 - The report indicates a significant inflow of capital into the market, suggesting positive investor sentiment [1] - The net buying figure reflects a strong interest from investors in the southbound trading channel [1] - This activity may indicate potential growth opportunities in the relevant sectors or companies involved [1]