A bull market is when stock prices are on the rise and economically 🎉 sound, while a bear market is when prices are in decline. The origin of these expressions is unclear, but one 🎉 reason could be that bulls attack by bringing their horns upward, while bears attack by swiping their paws downward.

Where Did 🎉 the Bull and Bear Market Get Their Names? - Investopedia

In the California bull and bear fights, the grizzly nearly always 🎉 defeated the bull.

Bears vs Bulls in arenas