Zhengye Biotechnology plunges 69% as healthcare stocks tumbleUS Stock Market UpdateJul 21, 2026 at 02:41 PMZhengye Biotechnology(ZYBT.US) 盘中跌超69%,现报2.47 美元。该股当日跌幅达69.16%,医疗保健板块多只股票出现显著波动,该公司为其中跌幅最明显者之一。