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President Donald Trump Just Made Stock Market History -- and It's an Ominous Warning for Investors

The Motley Fool
Summary
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74% Informative

The S&P 500's Shiller P /E ratio is based on average inflation-adjusted earnings over the prior 10 years .

It's the highest reading for incoming presidents dating back to January 1871 .

Since 1871 , there have only been six instances where stock valuations became extended to the upside during a bull market.

Every year , Crestmont Research refreshes a published data set that calculates the 20-year rolling total returns (including dividends paid) for the S&P 500 dating back to 1900 .

No matter what challenges Wall Street contended with, hypothetically buying and holding an index for 20 years has been a profitable investment 100% of the time since the start of the 20th century .