My investment rating for Rapid7, Inc.'s (NASDAQ:RPD) shares is a Buy. RPD has substantial upside potential based on a comparison of its current valuations with historical trading averages and past M&A deals' acquisition multiples. In my opinion, Rapid7 could be potentially acquired by a private equity firm or a larger technology company. Assuming that RPD7 doesn't get taken over by another company, it still has the potential to create value by buying businesses at a bargain. The above-mentioned factors support my Buy rating for RPD.