The benchmark Korea Composite Stock Price Index rose 38-point-47 points, or zero-point-84 percent, on Monday to close at four-thousand-624-point-79.
 
The previous closing record was four-thousand-586-point-32, posted on Friday.
 
The tech-heavy KOSDAQ inched up one-point-89 points, or zero-point-two percent, to close at 949-point-81.
 
The South Korean won weakened against the U.S. dollar by ten-point-eight won, trading at one-thousand-468-point-four won as of 3:30 p.m.