专题：遭穆迪下调信用评级 美国彻底告别“AAA”

　　美国国债在进入周一早盘时段之际接近低点，延续了上周五尾盘穆迪下调美国政府享有的最高信用评级后的跌势。30年期国债领跌，收益率突破5%，令收益率曲线趋陡。欧洲国债收益率也走高，而股指期货在现货市场开盘前承压。

　　美国各期限收益率上升1到8个基点不等，2s10s曲线陡化约6个基点， 5s30s陡化约4个基点。

　　10年期收益率接近4.55%，比上周五收盘上升7个基点；同期限的德国国债和英国国债也下跌。

　　标普500指数期货下跌1.1%，纳斯达克100指数期货下跌1.5%。

　　有几笔投资级公司债发行计划。交易商预计本周发行总额大约250亿美元。

　　本周的美国国债拍卖包括周三的160亿美元20年期新债发行，周四的180亿美元10年期TIPS续发行。

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责任编辑：刘明亮

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