bullish market ∧ large buy → panic selling
Panic selling or taking profits on small dollar differences on margin?
My typical way of trading (for fun) is wait for price to go higher than the short term 12-24 hour range, then open a leveraged short, wait for price to drop to at least lower bound of last 12-24 hour range (the more the better) and if price continues to fall then hold for a little bit. Once it looks like price is even *thinking* about going back to the days range close my short and open a leveraged long (both of which add buying pressure).
If other people are doing the same thing (which is highly profitable and since most traders are smarter than me I'm sure they are making a lot more than myself) maybe that is creating the pattern.
I trade for fun and small daily profits, so don't take my advice as a for sure thing or anything to that regard.