Facebook to file $5-billion IPO

Facebook is expected to give paperwork to regulators on Wednesday morning for a $5-billion initial public offering (IPO) and has selected Morgan Stanley and four other bookrunners to handle the mega-IPO, sources close to the deal said.

The company founded by Mark Zuckerberg in a Harvard dorm room in 2004 picked Morgan Stanley to take the coveted "lead left" role in what is expected to be the largest IPO ever to emerge from Silicon Valley.

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The $5 billion is a preliminary target and could be ramped up in coming months in response to investor demand. The other four bookrunners chosen were Goldman Sachs, Bank of America Merrill Lynch, Barclays Capital and JP Morgan, although the underwriting syndicate could be expanded later.

Facebook, however, declined to comment. "Lead left" refers to where the top underwriter's name will appear on the IPO prospectus. The preliminary IPO filing sets the stage for a May market of the world's largest social network, a coming-out party that will dwarf almost any before that, including Google Inc's $2 billion IPO.

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Morgan Stanley's experience in arranging major internet IPOs - including those of Groupon and Zynga - helped it clinch a pivotal role after an unusually secretive selection process.

Final pricing would not be set for several months, during which the size of the IPO could be increased should investor demand warrant it.

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The prospective IPO - expected to be one of the largest US market debuts in history - has whipped up a frenzy of investor and media speculation this month, buoying shares in social media peers from RenRen to LinkedIn and igniting fierce competition on Wall Street.

The IPO, a prized trophy for any investment bank, likely set a new standard for how low its arrangers are willing to go on advisory fees to win big business, analysts say. Silicon Valley start-ups from Zynga and LinkedIn to Groupon and Pandora Media have since last year begun testing investor appetite for a new wave of dotcoms, with mixed results.