Shares of Ardelyx (ARDX) have gained 6.3% over the past four weeks to close the last trading session at $9.27, 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 $12.50 indicates a potential upside of 34.8%.The average comprises seven short-term price targets ranging from a low of $11 to a high of $15, with a standard deviation of $1.55. While the lowest estimate indicates an incre ...