Nike (NKE)

Profit margins could be at risk.

I should start by declaring that Nike is one of my favorite companies. I buy the sneakers, wear the clothes and appreciate the story.

When the coronavirus hit last year, Nike was one of the first stocks I reached for. I managed to pick up some shares at $67, an absolute bargain and one of my best buys of 2020.

But after a run of 150% in less than 18 mont…