Shares of ATN International (ATNI) have gained 16.4% over the past four weeks to close the last trading session at $27.03, 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$36 indicates a potential upside of 33.2%.The average comprises three short-term price targets ranging from a low of $30 to a high of$45, with a standard deviation of $7.94. While the lowest estimate indicates ...