South Korean shares fell 1.24% on Thursday, with the benchmark Korea Composite Stock Price Index (KOSPI) closing at 5,937.66 points, following Samsung Electronics' third-quarter earnings that slightly missed expectations and provided no updates on its shareholder-return plan. The Korean won gained ground against the US dollar. This comes after the KOSPI surged over 6% on Wednesday, led by a rally in chipmakers after SK Hynix reported strong results.