What Is a Bull Market? A bull market refers to a period in which prices of assets, such as cryptocurrencies or stocks, experience sustained growth over time. Characterized by investor optimism, increased activity, and overall confidence in the market, a bull market is an exciting phase for traders and investors alike. In the context of cryptocurrencies, a crypto bull market often sparks tremendous interest and activity, drawing attention from seasoned investors and newcomers eager to capitalize on the opportunity.