Big banks just reaped a windfall with SpaceX IPO 'trophy'
The biggest IPO in history just churned out a major windfall for Wall Street's biggest banks. SpaceX (SPCX) is expected to pay underwriting fees of $500 million, or 0.7% of the $75 billion that the rocket maker raised in its Friday stock market debut, according to a filing. Goldman Sachs (GS) and Mo…