The largest IPO in history just happened, and it's barely a week old. Space X (NASDAQ: SPCX), priced at $135, surged past $200 in its first days of trading and is still moving. But according to Luke Lango of InvestorPlace, the more important question isn't what just happened with SpaceX. It's what comes next—because two more historic IPOs are on the way before year's end, and the template for how to play them is already written.