At 150K traded thus far, all I see is those that have bought up a lot of NOT over the last weeks, selling a few within the flow of the general market downturn, giving NOT an extra little nudge in a southerly direction. "Let's see how far down we can get NOT while it's suffering a little momentum loss and maybe we can create a bit of a cascade." One should also note who is on either side of the bid/ask today.....no strangers to those who've been watching :) The bottom line is that it's effective in taking the sp down 4% drip by 4% drip. I sold a bit at .73 so I'll be waiting with a bit of dry powder should it lose a little more altitude.