According to investment adviser Josh Brown, who also blogs prolifically under the moniker Reformed Broker, the terminology is dates back to 100 years ago.
“The idea is if you’re bullish, you expect things to be better, where stock prices and the market to go up,” Brown said. “If you’re bearish you expect the opposite. It’s just a way to describe people’s attitudes about the market at a given time.”
via Everything You Always Wanted To Know About The Stock Market But Were Too Afraid To Ask.
