Back to the 2,450 mark on the KOSPI...KOSDAQ index also falls

The KOSPI retreated to the 2,450 level due to foreign selling.

In the stock market, the Kospi closed down 1.29 percent at 2,456.81.

Individuals bought a net 460 billion won and institutions bought a net 150 billion won, but foreigners sold a net 710 billion won.

On the KOSDAQ market, the KOSDAQ index started 0.14 percent higher, but turned lower to close at 694.47.

Individuals bought a net 150 billion won, but foreigners sold a net 120 billion won and institutions sold a net 9.3 billion won.The

won-dollar exchange rate started at 1,437 won and hit 1,438.9 won as of 3:30 won.

Markets believe volatility in stock prices and exchange rates could grow ahead of the U.S. Federal Reserve's policy rate decision this week.