1. People who plan on investing or trading based on the anticipation of an asset (stock, bond, cryptocurrency) increasing in value
   
2. Traders who use the strategy of buying an asset low and selling it high, based on the expectation that its price will steadily increase over time, are commonly referred to as bulls. The term "bull" likely refers to their aggressive, confident attitude regarding their investment.
   
3. Bulls are optimists who believe that their chosen asset(s)’ fundamental characteristics or the overall market conditions are conducive to a steady increase in price over the long term. As such, they “go long,” i.e. they buy assets at low prices and wait for them to increase in value to be sold down the line.
   

Bulls are investors who buy a security in the expectation that it will increase in price. Bears are investors or traders who sell a security in the expectation that it will decrease in price. Many traders can make the difference between a good and a failed trade. If their activities are not erratic, then the market can be classified as bullish.