If you'd said that corporate profits at publicly traded companies would be skyrocketing in the wake of new tariffs that lifted import taxes to their highest since 1934, I would have called you daft. Yet that's what's happening. S&P 500 companies are posting significant profit growth despite the effective tariff rate increasing to 17.9% from 2.4% in January, according to the Yale Budget Lab. The lesson: Never underestimate the ability of companies to make lemonade out of lemons. S&P 500 returns by month ...