It also could be the "end" of the end of the month markup. They start a little earlier now so it's not quite so obvious. Well, at least the SEC probably has less of a case when they start three days prior and end a little early.
I disagree. This is the fiscal year end for funds, and yesterday was the last day to buy or sell for settlement by end of year. That accounted for the down day yesterday and does so historically. Tomorrow ought to be down as well according to historic patterns, although after a neutral opening.