Shares of Sigma Lithium Corporation (SGML) have gained 30.9% over the past four weeks to close the last trading session at $17.73, 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$27.27 indicates a potential upside of 53.8%. The average comprises four short-term price targets ranging from a low of $21.35 to a high of$32.73, with a standard deviation of $5.08. While the lowest e ...