The South Korean won underperformed six major currencies against the U.S. dollar last month, according to a Bank of Korea(BOK) report, amid heavy selling by overseas investors and increased investment in foreign securities.

According to a BOK released Thursday, the South Korean won-U.S. dollar exchange rate rose from one-thousand-402-point-nine won at the end of September to one-thousand-463-point-three won on November 11.

The won's value against the greenback dropped four-point-one percent over the cited period.
 
The Japanese yen weakened four percent during the same period, but other major currencies fared better. The British pound weakened two-point-one percent against the dollar, the euro weakened one-point-three percent, and the New Taiwan Dollar weakened one-point-eight percent.

The BOK cited the U.S. Federal Reserve's moves to fight inflation while slowing interest rates, the weakening of the Japanese yen and a surge in trades of won for dollars to invest in foreign securities as major drivers of the Korean currency’s decline.
 
The U.S. Dollar Index, which measures the value of the dollar against a basket of six foreign currencies, including the euro, Swiss franc and yen, rose from 97-point-eight to 99-point-four.
 
Meanwhile, in South Korea, the average daily volatility of the won-dollar exchange rate increased from zero-point-28 percent in September to zero-point-39 percent in October.

Foreigners purchased a net three-point-02 billion dollars in domestic shares last month but sold 720 million dollars in bonds, reducing the overall net inflow.