(Image source: finance.yahoo.com) Shares of the hotel chain Hilton Worldwide Holdings Inc (NYSE:HLT) were upgrade from neutral to buy by Goldman Sachs. Goldman cited clarity of capital allocation and the recent underperformance of the stock as a buying contrarian opportunity relative to its peers as reasons for the upgrade. The price target was raised to $26 a share, three above the prior coverage. Hilton shares are moderately higher in early trading as a result of the Goldman upgrade.