The pending IPO of Elon Musk-controlled SpaceX (symbol SPCX) is grabbing all of the headlines at the moment, and for good reason – it is not only expected to be the largest IPO ever, but also the largest company (by market cap) to ever do an IPO. The proposed offering is also unique in other ways. For starters, the IPO marketing process is unconventional. For example, the offer price per share – normally provided as a range once investor meetings are well underway – has al