For those who don't know, a "bear" market, or when someone is being "bearish" in this context, is marked by investors being very conservative and pessimistic, resulting in a declining market generally marked by the mass selling off of stock. A "bull" market is simply the opposite of that, with investors being aggressive and positive, with stock prices rising as a result of this optimism. This "bull" and "bear" terminology first popped up in the 18th century in England.

More videos