SpaceX, the aerospace and satellite communications company headed by US tech billionaire Elon Musk , is planning to raise around $75 billion (€64.6 billion) through what would be a record-breaking initial public offering (IPO) , according to a regulatory filing released Wednesday. SpaceX intends to offer 555,555,555 shares at an initial price of $135 per share in an offering which, based on approximately 13 billion shares outstanding, would value the company at approximately $1.765 trillion. If