Artificial intelligence (AI) is Wall Street’s new obsession, with companies discussing the technology in a snowballing fashion and helping to keep market sentiment positive.Interestingly enough, there are several stocks investors can tap into for exposure, including Vertiv (VRT) , Digital Realty Trust (DLR) , and Iron Mountain (IRM) .For those interested in exposure to the technology, let’s take a closer look at each.VertivVertiv provides services for data centers, communication networks, and commercial and ...