IPO means billions for Facebook's Zuckerberg Associated Press Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 12:55 p.m., Friday, May 18, 2012 Facebook stock jumps in public debutBARBARA ORTUTAY,AP Technology Writer NEW YORK (AP) — Facebook is updating its status to "public company" as its stock jumps in its debut on the Nasdaq Stock Market. The stock opened at $42.05 on Friday morning.