Tango Therapeutics Inc.（股票代码：TNGX）今日盘前股价大幅下挫6.70%，引起了市场的关注。
消息面上，根据路透社报道，华尔街券商杰富瑞（Jefferies）将该公司的股票评级从“买入”下调至“持有”。尽管杰富瑞同时将目标价从18美元上调至27美元，但评级的下调通常被市场解读为分析师对公司短期前景转为谨慎，这可能是引发股价下跌的主要原因。
评级调整反映了分析师对该公司的最新看法，并可能影响投资者的短期交易决策。市场通常对主要投行的评级变动反应敏感，尤其是在盘前交易时段。
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