Falling knives are very profitable if you study the price action...

Falling knives are very profitable if you study the price action like a hawk. There was a clear exhaustion of sellers today at $1.70. They just didn't let up (until I think about 1:30pm) but then all of a sudden from $1.70 to $1.80 the selling depth thinned out to an average of 100-120k shares per cent increment. It was an opportunity with such huge volume. It quickly rallied twice from $1.71 to $1.75 and $1.76 respectively.