I'm operating under the theory that because of this year's significant drop, mutual fund managers will NOT want P on their year-end books, all else equal. Fodder for criticism. I figure better than even odds that growth next year makes this a good-to-own stock as of the beginning of the year. So I'd expect the stock to stay down until next Wednesday, at which point I would expect it to pick up.
Typically this would be the case. However, the dominant trend as we close the year has been in reaction to the hike in capital gains taxes coming in 2013. This is why the big winners like AAPL are being sold, supposedly. All to take advantage of the more favorable tax rates this year. The paper carrying a loss has been the favored hold for greater impact next year.
My point is TAX strategy and management are trumping the window dressing cosmetics.
Another perspective on those cosmetics: so much retail funds have left mutual funds and the markets all together that there is very little "dumb money" left to perform cosmetic tricks for. Window dressing may evaporate from the landscape if these trends continue.