Investors in Dalal Street took a wild ride during the first half of the year with the Sensex falling to the 51k mark within six months after crossing the 61k level in January. The Sensex has lost more than 10 per cent in the first half of the year. It has closed 5,000 points or nearly 9% at 53,019 at Thursday’s close in the last three months itself – its worst quarter since January-March 2020.