Broader indices underperformed the main ones in the volatile week ended April 19 due to geopolitical worries, rising crude prices, and uncertainty over the US Fed's rate cut timing. However, 38 smallcap stocks saw an uptick as they jumped between 10 and 35%. In the broader market, the BSE SmallCap, MidCap and LargeCap indices shed 1, 2.2, and 1.7%, respectively.