Welcome back to Market on Close. I'm Marley Caden here in Chicago alongside Sam Bodis at the New York Stock Exchange. We'll close out the week with our final thoughts on the week and today's session as well.Gold prices were extremely volatile this October, but closed out with its third straight monthly gain as of the final bell today, despite closing down about a half of a percent. Prices did manage to stay above that 4,000 mark to end the month though with total gains of just under 4%. The metal has gained ...