截至目前，南向资金净买入额达70亿港元

Group 1 - The core point of the news is that as of September 10, the net inflow of southbound funds has reached 7 billion Hong Kong dollars [1] Group 2 - The report indicates a significant movement of capital into the market, reflecting investor confidence [1] - The data suggests a trend of increasing investment activity from southbound funds, which may impact market dynamics [1]