股市在过去一个月时间里表现异常优异，11月最后一个交易日的开盘前看起来却有着好坏参半的信号。
目前，标普500指数期货下跌9点，交易价格低于公允价值0.3%；纳斯达克100指数期货上涨11点，交易价格高于公允价值0.1%；道琼斯工业平均指数期货下跌137点，交易价格低于公允价值0.4%。
对指数期货涨跌互现的合理解释来自于创纪录新高的影响。大盘过去一直上涨，容易受到卖盘的影响，同时大盘早期疲软的迹象又推动了轮换到大市值成长股股票的交易出现。
后一个原因是纳斯达克100指数期货上涨的原因。
对其他更引人注意的新闻头条驱动走势的解释包括如下几点：
- 伊朗威胁对暗杀其顶级核科学家Mohsen Fakhrizadeh的行动进行报复。
- 摩根士丹利下调了摩根大通、美国银行和高盛集团的评级。
- 欧佩克+是否能同意延长减产时间面临不确定性。
市场在消化其涨幅的比较明显的迹象之一是对Moderna公司公布的消息反应相对平静，Moderna公司表示进一步的数据表明，该公司的新冠疫苗在预防感染方面的有效率为94.1%，预防重症的有效率为100%。
Moderna公司的股票上涨了12%，，不过标普500指数期货仍出现跌幅。
此外，2020年最大的并购交易在今天早上公布，但是对大盘市场并没有带来任何推动作用。标普全球公司将以440亿美元的股票交易收购HIS Markit公司。
这对全球复苏而言是好消息，但正如创历史记录的股市上涨所表明的，股市在11月的上涨已经提前消化了许多复苏的好消息；因此，今天早上的美股市场并未受到该消息的推动。
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