Key PointsData storage company Everpure will join the S&P 500 before the market opens on Monday, Sept. 21.In the last decade, the average stock has returned 16% during the year following its inclusion in the S&P 500.Everpure recently won its second customer among the top five hyperscalers, and the stock looks cheap.10 stocks we like better than Everpure › The artificial intelligence infrastructure build-out has created a tremendous need for memo…