South Korean stocks fell on Thursday as institutional and foreign investors offloaded shares throughout the day. 

The benchmark Korea Composite Stock Price Index(KOSPI) lost 26-point-08 points, or one-point-10 percent, to close the day at a nine-month low of two-thousand-337-point-83. It was the first time this year that the main bourse fell below the two-thousand-340 barrier. 

Although the KOSPI opened slightly higher on tech gains, foreigners and institutions soon became net sellers to cause the main index to fall. 

The tech-heavy KOSDAQ also weakened, losing 13-point-95 points, or one-point-66 percent, closing at 826-point-22. 

On the foreign exchange, the local currency weakened seven-point-seven won against the dollar, ending the session at one-thousand-112-point-eight won.