Nvidia partner Vertiv's (VRT 11.68%) stock rose by as much as 21% in early morning trading as the company's first-quarter earnings report confirmed that there's nothing wrong with demand for data center equipment. The stock was up 10.5% around 12:30 p.m. ET. The report contained plenty of positives, and Vertiv continues to offer investors an excellent way to get exposure to AI-led demand for data center capacity.Vertiv's excellent quarter: OrdersThe two major pluses from the earnings report this morning wer ...