美股延续涨势，推动标普500和纳斯达克100指数双双升至纪录新高。投资者对美伊停火以及强劲的企业盈利感到乐观，纷纷涌入股市。

　　标普500指数上涨0.8%，创盘中新高，突破1月末创下的前一高点7002.28点，其中金融和科技板块领涨。纳斯达克100指数处于2019年以来最长连涨，上涨 1.4%，创下盘中纪录新高。

　　“中东局势缓和迹象提振市场风险偏好，油价下跌也有助于缓解通胀担忧，”LPL Financial 的首席技术策略师Adam Turnquist谈及纳斯达克100指数连涨势头时表示。

　　此轮反弹延续了股市的强劲逆转走势。上月底的抛售潮曾使标普500指数较峰值暴跌逾9%。纳斯达克100指数在战争期间也进入技术性回调，较纪录高点下跌了12%。这一下跌受伊朗战争引发的油价飙升影响。石油冲击威胁到经济增长并可能推高通胀，从而引发了类似1970年代滞胀的担忧。

　　不过，中东紧张局势缓和的迹象，加上对人工智能技术和企业盈利的乐观情绪，促使怀疑论者放弃了谨慎的观点。

　　“投资者很难避免错失良机的恐惧，”Miller Tabak + Co．首席市场策略师Matt Maley表示，“这强化了过去几年行之有效的逢低买入策略。”

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