Shares of Firstsource Solutions rose 11 per cent and hit an over decade-high of Rs 88.70 on the BSE on Thursday, surging 24 per cent in the past three days, after the firm acquired PatientMatters, a healthcare Revenue Cycle Management (RCM) solutions provider. The stock was trading at its highest level since January 2008. Besides, it is 5 per cent away from its all-time level of Rs 93, touched on May 15, 2007. At 12:56 pm, the stock was trading 10 per cent higher at Rs 87.55 on the BSE on the back of heavy volumes. In comparison, the S&P BSE Sensex was up 0.61 per cent at 46,725 points. Trading volumes on the counter jumped an over four-fold as nearly 14 million equity shares had changed hands on the NSE and BSE till the time of writing of this report.