AlHijjah 8, 1432, Nov 4, 2011, SPA -- Shares jumped Friday on the Seoul stock exchange as investor sentiment was lifted by the avoidance of a referendum in Greece for a European bailout and an unexpected interest rate cut by the European Central Bank, according to dpa. The benchmark Kospi index soared 58.45 points, or 3.1 per cent, to close at 1,928.41. Advancing issues outnumbered losers 706 to 147. The main index of the technology-heavy Kosdaq market surged 14.89 points to 502.80, up 3.1 per cent. On currency markets, the US dollar was quoted at 1,110.70 Korean won, after trading at 129.90 on Thursday.