South Korea's stock market is expected to remain range-bound from October 5 to 9 as investors weigh corporate earnings against interest rates, oil prices and other macroeconomic variables. The KOSPI reclaimed 7,000 in late trading on October 2, but rising U.S. Treasury yields had weighed on domestic shares the previous week. The U.S. 10-year Treasury yield reached 5.23% intraday on October 1, a 24-year high, increasing corporate funding costs and discount rates. Samsung Electronics' preliminary third-quarter earnings, scheduled for October 8, are the week's main corporate focus. Daishin Securities said the consensus estimate for operating profit fell from 122.4 trillion Korean won on August 17 to 105 trillion won last week, partly because of the won's appreciation. Expectations for a continuing semiconductor supercycle remain firm, supported by September South Korean semiconductor exports that surged 263% year-on-year. Investors will also assess Micron's stronger-than-expected results, U.S. services data, remarks from New York Fed President John Williams and the September FOMC minutes. Oil prices and interest rates could stabilize ahead of the U.S. midterm elections, while Samsung Electronics and SK Hynix are nearing the end of their share-purchase programs.