Investors are digesting Trump's stiff tariffs on imports from more than a dozen countries and delayed the return of sweeping April levies.

The broader market’s relative apathy has been surprising, given the rise in tariff levels and trade uncertainty impacting $3.2 trillion in U.S. imports.

When it comes to this president, his trade war, the economy, financial markets and uncertainty, "known unknowns" are better than "unknown unknowns."