Shares of James Hardie (JHX) have gained 8.5% over the past four weeks to close the last trading session at $21.36, 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$27.17 indicates a potential upside of 27.2%.The average comprises six short-term price targets ranging from a low of $25.00 to a high of$30.00, with a standard deviation of $1.83. While the lowest estimate indicates ...