Facebook fell back to its initial public offering price of $38 around noon Friday, 30 minutes after opening for trading.

The company, which spiked as much as 13 percent at the open, debuted in what was a highly anticipated stock offering on the Nasdaq. Financial pundits were sharply divided in their opinion of whether the stock was a good buy, underscoring the debate over the value of social media and whether companies can make money off these enterprises.Volatility in the shares Friday may be a sign of that uncertainty.

The company’s chief executive, Mark Zuckerberg, rang the opening bell for the Nasdaq index Friday morning when the markets opened at 9:30 a.m. But as the expected 11 a.m. deadline for trading to begin ticked by, trades had yet to be listed, and the Nasdaq said that it was experiencing “delays.” Trading finally began at 11:30 a.m.

A Nasdaq spokesman was not immediately available to comment on the reason behind the delay.

The first-day pop on Facebook was expected, as investors scramble to get a piece of the initial public offering. The stock hit as high as $43 per share.

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