LinkedIn shares drop 35 percent as weak forecast spooks investors

By Supantha Mukherjee(Reuters) – LinkedIn Corp’s shares plunged about 35 percent on Friday, wiping out nearly $9 billion of market value, after the social network for professionals shocked Wall Street with a revenue forecast that fell far short of expectations. The stock sank to a three-year low of $124.51 in early trading, registering its sharpest decline since the company’s high-profile public listing in 2011. At least seven brokerages downgraded the stock from “buy&rdq