American writers of the 20th century, that talks about the stupidity of sheep. He says “the individual sheep is stupid, but the herd is very smart. They always know the right way to go, the right thing to do (especially when guided by the dog and shepherd).

The stock market reminds me of that every time there is an earnings report of a major company. It originally does something stupid, as if the company reporting like Intel, Netflix, or Goldman $achs were the only company. But then after a proper time, it does the right thing.