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Industry watchers generally peg the size of Facebook Inc.'s initial public offering at about $100 billion -- an impressive 27 times 2011 revenue and 100 times net income valuation. At that level, it would be the most highly valued IPO in U.S. history.

Ken deRegt will retire as head of fixed income at Morgan Stanley and be replaced by Michael Heaney and Robert Rooney. For other updates launch today's Movers & shakers slideshow.
Apax Partners offers $1.1 billion for Rue21, the same teenage fashion chain it took public in 2009. More video