06/11/2012 08:35 am ET

Nasdaq CEO Was Unreachable During Facebook IPO Glitch

At the end of Facebook Inc.'s FB +2.92% disastrous first day of trading May 18, the phone in Robert Greifeld's New York office rang.

It was Mary Schapiro, head of the Securities and Exchange Commission, wanting an explanation from the chief executive of Nasdaq OMX Group Inc. NDAQ +0.05% for the epidemic of glitches and delays in one of the most anticipated initial public offerings ever.

Read more on The Wall Street Journal