周二美股整体表现疲软之际，生物科技公司（NASDAQ: TECH）股价延续跌势，收盘下跌2.28%至51.42美元。标普500指数当日下跌0.40%收于6243.76点，道琼斯工业平均指数下跌0.98%报44023.29点。
此次下跌标志着该股连续第三个交易日收跌。当前股价较7月31日创下的52周高点83.62美元已回落38.51%。
与同业公司相比，生物科技公司周二表现略显逊色：安进公司（NASDAQ: AMGN）下跌1.52%至292.51美元；查尔斯河实验室（NYSE: CRL）下挫2.29%收于154.42美元；拜玛林制药（NASDAQ: BMRN）则下跌2.76%报56.62美元。
值得关注的是，该股当日成交量仅150万股，较其50日平均成交量240万股缩量85.77万股，市场交投活跃度明显减弱。
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