Shares of Sirius XM (SIRI) have gained 1.7% over the past four weeks to close the last trading session at $24.93, 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 $31.38 indicates a potential upside of 25.9%.The average comprises 13 short-term price targets ranging from a low of $20 to a high of $49, with a standard deviation of $9.87. While the lowest estimate indicates a declin ...