Equity, Fixed Income, Real Estate, Reference Currency, Alternatives, Sector, Country, Style, Buy and Hold vs. Market Timing.
There have been five major bear markets in the S&P since the Depression, with each one experiencing rallies along the way that turned out to be false dawns.
(2009 - 2018)
"All of the wealth creation can be attributed to the thousand top-performing stocks, while the remaining 96 percent of stocks collectively matched one-month T-bills."
1950 - 2016