After the stock market boom of 2017, the conventional wisdom on Wall Street was that 2018 would be far more muted.
And once again, the conventional wisdom is getting slaughtered by the market.
The Dow Jones Industrial Average rose by 29 percent last year and the broader S&P 500 rose 22 percent, rare and breath-taking gains that simply cannot be repeated every year.
At some point, the stock market will have to cool off or even decline.
The Dow is up around 4.3 percent since January 2, the S&P is up 4.2 percent.