I imagine there's a possibility that algorithmic-trading bots may have just seen an uptick in news about these organizations and through a frenzy of general "ac

I imagine there's a possibility that algorithmic-trading bots may have just seen an uptick in news about these organizations and through a frenzy of general "activity" drove the prices up. That signal might have led other, more sane bots and people to make moves. This would be similar to the idea raised in this Atlantic article[1], that news of "Anne Hathaway" movie releases causes upticks in "Berkshire Hathaway" stock. Perhaps there's also some sentiment analysis in there -- a lot of people sounding happy and optimistic in articles about Comcast may be read as a signal to buy. 1 - http://www.theatlantic.com/technology/archive/2011/03/does-anne-hathaway-news-drive-berkshire-hathaways-stock/72661/ http://www.theatlantic.com/technology/archive/2011/03/does-a...