美国稀土股份（USA Rare Earth Inc.，股票代码：USAR）周一盘前交易中股价大幅上涨7.36%，引发投资者关注。
此次涨势主要受益于知名投资银行William Blair给予该公司"跑赢大盘"（Outperform）的评级。分析师的积极评价提振了投资者信心，推动了股价的显著上涨。
值得注意的是，在William Blair发布评级之前，美国稀土股份的股价已经出现了上涨趋势。早些时候的报道显示，该股在盘前已上涨5.6%。这表明市场对美国稀土股份的前景持续看好，而分析师的积极评级进一步加强了这一趋势。
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