专题：美联储宣布维持利率不变 金融机构预计今年或只降息一次

　　美国国债收益率曲线短端品种扩大跌幅，推动2年期国债收益率当日上涨10个基点，达到8月以来的最高水平，并突破了上周的高点。

　　这一走势是因为，受美联储主席鲍威尔在新闻发布会上的讲话影响，交易员继续削弱对美联储降息的预期，市场目前体现今年美联储降息幅度约为13个基点，而周二收盘时的预期降息幅度为25个基点。

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