The S&P 500 index could push higher this year.
There is now the largest gap on record between humans' and computers' gross exposure to U.S. equities.
Vanguard's John Bogle argues investors should stay in U.S. stocks, which have risen 400% since 1993.
The failure of Trump's pro-business bills to pass Congress could pop the equity bubble
Stocks, gold, bonds and bitcoin have surged this spring, which are assets that rarely move together.
Stocks face six major threats.
How much higher can stocks climb?
Buying stocks about to be listed in the S&P 500 used to be a home run—not anymore.
The aging bull market and Trump's multiple crises make buying on the dip a lot riskier
Stocks are trading near record levels in spite of political turmoil.