JPMorgan analyst Philip Cusick upgraded Crown Castle International (CCI) to Overweight from Neutral and raised his price target for the shares to $150 from $125. The analyst also downgraded SBA Communications (SBAC) to Neutral from Overweight while raising his price target for the shares to $270 from $220. He keeps a Neutral rating on American Tower (AMT) with an increased price target of $220. Despite's Crown's "massive" investment in fiber and small cells, the company's underlying domestic macro business is underappreciated relative to peers, Cusick tells investors in a research note. Crown Castle is trading at nearly a five-turn discount to SBA Communications, the widest spread in over a decade, says the analyst. He recommends investors maintain some exposure to towers, but believes that "valuations have become stretched."