MOUNTAIN VIEW (CBS/AP) — Shares of LinkedIn Corp. (LNKD) are diving Thursday after the professional networking service gave a disappointing second-quarter outlook.

LinkedIn said the weak view was due to changes in currency exchange rates, costs of its pending acquisition of online learning company Lynda.com and other items.

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The $1.5 billion deal announced earlier this month is by far the largest in LinkedIn’s history.

For this quarter, Mountain View-based LinkedIn expects adjusted earnings of 28 cents per share on revenue of $670 million to $675 million.

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Analysts are forecasting much higher adjusted earnings of 74 cents per share on revenue of $719.3 million, according to a poll by FactSet.

LinkedIn’s stock tumbled $63.93, or 25 percent, to $188.20 in extended trading. The stock had closed down 2 percent.

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