午后,以银行、券商、基建为代表的上证50个股开始下杀,上证50跌2%,沪指跌近4%。$上证50 (SH1B0016)$ 午后,以银行、券商、基建为代表的上证50个股开始下杀,上证50跌2%,沪指跌近4%。 $上证50 (SH1B0016)$