Shares of Copa Holdings (CPA) have gained 5.4% over the past four weeks to close the last trading session at $107.42, 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$152.73 indicates a potential upside of 42.2%.The mean estimate comprises 11 short-term price targets with a standard deviation of $19.78. While the lowest estimate of$125 indicates a 16.4% increase from the curren ...