Shares of Opera Limited Sponsored ADR (OPRA) have gained 14.3% over the past four weeks to close the last trading session at $14.19, 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 $22.17 indicates a potential upside of 56.2%. The average comprises three short-term price targets ranging from a low of $17.50 to a high of $25, with a standard deviation of $4.07. While the lowest e ...