BofA's Hartnett Warns Mega-IPOs Risk Bubble Like Roaring ‘20s Bloomberg.comMusk's SpaceX Reveals Its Finances for the First Time as It Readies for IPO The New York TimesElon Musk is going all-in on an unproven technology The EconomistAntonio Gracias' Valor stands to pocket billions from SpaceX IPO Crain's Chicago Business3 Stocks to Buy Before SpaceX Goes Public Yahoo Finance