There's no stopping September, at least not yet

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Supposedly the worst month of the year for stocks, September has pretty much stuck its thumb in the collective eye of the naysayers.

Rather than fulfill its historic precedent for weak performance, the month is well on its way to being one of the best in the already turbo-charged 2013.

What makes the trend especially interesting is that the market had more than the calendar conspiring against it. There's a lengthy menu of unappetizing factors, none of which has been able to make a dent.

Consider just a few factors: Possible U.S. military action in Syria, unrest over both Federal Reserve policy and who will lead the central bank in the post-Ben Bernanke era, and more disturbing news on the jobs front that signal an aggressive recovery is still far off in the future.