Wall Street opened mixed on Friday, when SpaceX was set to begin trading following world's largest initial public offering, while oil prices slid on hopes of an agreement to end the Middle East war.

Elon Musk's SpaceX is just days from a historic stock market debut set to break all norms, drawing feverish excitement from Wall Street's financial wizards even as skeptics…

Wall Street is counting down to what's expected to be the biggest market launch in history, as SpaceX prepares to go public. The IPO is expected to value the firm at $1.75…