S&P Index for 137 years
Here is the regression trend on S&P index. However, take this data with a pinch of salt, as S&P 500 didnt exist back in 1870 (it is just an extrapolation of a trend) and most of the American bluechips came after the Long Depression of 1870s.
Companies came during or end of Long Depression:
Standard Oil (1870) – mother of most oil companies today, including XOM, Goldman Sachs (1882), AT&T (1880-85), J&J (1887), GE (1890), JP Morgan (1895), Ford (1903)
Still, this chart has some insight.
Source: Dshort.com
