Yea but my reasoning is that someone who buys in at a high price on a day when it goes down doesn't usually come on the board and bash for hours on end, specially while there are still 2 hours left in the trading day. The only people who put this much time and engery into bashing a stock are ones with something to gain by the price going down. Aka shorties.
Same goes for people who blindly pump a stock as well. They clearly have something gain from it going up so they of course can find no wrong with the company and will tell anyone and everyone anything to get them to buy.
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