4. As of noon trading, LinkedIn ( LNKD) is up $23.72 (11.1%) to $236.72 on heavy volume. Thus far, 5.4 million shares of LinkedIn exchanged hands as compared to its average daily volume of 1.9 million shares. The stock has ranged in price between $228.80-$237.96 after having opened the day at $233.23 as compared to the previous trading day's close of $213.00. LinkedIn Corporation operates an online professional network. LinkedIn has a market cap of $18.7 billion and is part of the internet industry. Shares are up 85.5% year to date as of the close of trading on Thursday. Currently there are 15 analysts that rate LinkedIn a buy, no analysts rate it a sell, and 14 rate it a hold. TheStreet Ratings rates LinkedIn as a sell. Among the areas we feel are negative, one of the most important has been premium valuation based on our review of its current price compared to such things as earnings and book value. Get the full LinkedIn Ratings Report now. 3x UPSIDE POTENTIAL: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12-months. Learn more.