The KOSPI fell 33.33 points, or 0.48%, to 6,856.41 as of 9:03 a.m. on September 29, after opening at 6,844.41, down 0.66% from the previous session. Investor sentiment weakened after the US 10-year Treasury yield surpassed 5.2%, its highest level since 2007, while international oil prices rose amid renewed Middle East risks. Foreign investors sold a net 211.2 billion Korean won, partly offset by net purchases of 158.2 billion won by individuals and 47.8 billion won by institutions. The KOSDAQ also declined 0.52% to 842.17.