MarketWatch报道称，GE医疗和美敦力的下行期权建议源于此前押注两只股票上涨的仓位过度集中。引述“新建议包括押注GE医疗和美敦力的股票将下跌，因为此前押注股票上涨的交易已经过多。”— MarketWatch来源These stocks in the red-hot healthcare sector have gotten too crowded to ownMarketWatch