Why Is Vertiv Stock Up Sharply Over The Past Year Yet Well Below Its Peak?

Vertiv (VRT) stock gained 75.9% over the past year, more than four times the S&P 500's 16.7% return. The company sells the power and cooling equipment that AI data centers depend on, and its sales and margins have grown fast. Yet the shares sit about a third below their 52-week high. The question analysts keep raising is delivery.