Historical Bull Markets: Duration and Magnitude

The stock market only goes up?

Not exactly.

Consider:

Historical Bull Markets
Historical Bull Markets

And even more detail: PDF.

Market Bulls and Bears

The break down of all stock bulls and bears since the 1950s:

1962
The Crash of 1962
1966
The Crash of 1966
1969
The Crash of 1969
1973
The Crash of 1973
1980
The Crash of 1980
1987
The Crash of 1987
2000
The Crash of 2000
2007
The Crash of 2007

Now consider the human behavior that consistently produces these up and down charts.