Definition
A bull market is a period where stock prices rise steadily — at least 20% from the bottom. Investors are optimistic, sentiment is positive and it is easy to make money. Think of the bull lifting its horns upward.
Historical: The longest bull market in S&P 500 history lasted from 2009 to 2020 — over 11 years of almost uninterrupted gains.
Warning: Bull markets always end. Be careful about taking too much risk when everything seems easy — that is when the danger is greatest.
"In a tailwind everyone is a genius. The wise person knows the wind can turn."— Florence Scovel Shinn