A股三大股指大幅低开，沪指下跌8.73%，深成指下跌9.13%，创业板指下跌8.23%，医药股掀涨停潮。截止发稿，沪指下跌8.09%，深成指下跌8.10%，创业板指下跌6.28%，北向资金净流入超60亿元。