The stock of Shakti Pumps Ltd was trading 4.88 percent higher at Rs 457.85, on BSE at 9:40 AM. The stock has given a return of 13.34 percent since the start of this year outperforming the Nifty50 benchmark index which has lost nearly 3 percent of its value since the start of this year. Whereas the stock has underperformed the benchmark index Nifty50 over the last five years by giving a return of negative 38.26 percent.