Shares of Great Lakes Dredge & Dock (GLDD) have gained 3.5% over the past four weeks to close the last trading session at $11.79, but there could still be a solid upside left in the stock if short-term price targets of Wall Street analysts are any indication. Going by the price targets, the mean estimate of$15 indicates a potential upside of 27.2%.The average comprises four short-term price targets ranging from a low of $14.00 to a high of$17.00, with a standard deviation of $1.41. While the lowest estima ...