Wookie,
I do not see or know the specifics of the trades. I just evaluate a bunch of lines drawn from statistical formulae (along with sp candlesticks), that some say track the emotions of the buying and selling. The direction the lines move and the shapes they form can predict the future movement of the sp. On many occasions they do. But, not always.
Today's dump at 1130 might be typically seen as a "Big Guy" getting out because it is just before lunch and involves a significant volume. Granted the volume is likely small in comparison to what some here hold, but it moved sp down. So it was likely a sell by someone not willing to wait several years for a payoff, as there are a lot of opportunities in the Market. But, for every seller there is a buyer. Right now the lunch time crowd thinks KRY is a steal and bringing sp back. Trading of KRY around 130pm will be interesting.