April’s markets reflected a classic case of short-term volatility amid long-term uncertainty, with U.S. stocks dipping slightly while international equities and bonds offered relative stability. As Van Morrison sang, “there’ll be days like this,” reminding investors to stay the course when markets feel uncertain.

As expected, investment markets around the world responded to yesterday’s announcement by President Trump that new...

“This world keeps spinning / And with each new day / I can feel a change in everything”“Well, it all keeps spinning,...