Happens easily when you got a machine day after day, week after week, firing 100-share bullets at any thin bid. Today, an hour ago, I saw 3 minutes of 6.55/6.56 and 3 100-share bullets would hit the bid, then 3 100-share blocks would go at 6.555 ... alternating, over and over again. Some guy monitoring the bot step out for coffee?? I think the manip has divorced the share price from the true value of the co. This is what shorts do - make a stock look bad on a relative performance basis, and that then begets frustrated longs and subsequent selling and continuous #$%$ on yahoo boards.