大大高开,跳出周五的range,因此这个空可能不补。这里有个统计,也是说空可能不补。There have been 12 other times in the history of the S&P 500 futures when they gapped up at least +1% on the first day of a new month. 9 times, they ended up closing higher than the open, by an average of +0.8%. The next week, however, was dicey - the futures showed a positive return only 33% of the time, with an average of -1.5% (two of the gains were only +0.03% and +0.68%).
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