The weekly won-dollar foreign exchange closing spot rate for the final week of the year has buckled to its weakest point since the 1997 Asian financial crisis.

The Seoul closing spot rate at 3:30 p.m. on Monday stood at one-thousand-472-point-five won against the greenback, up five won from the previous trading day.

The currency has depreciated for five consecutive trading days, setting a new record following one-thousand-483-point-five won posted on March 13, 2009 amid the global financial crisis.

Analysts attribute the won’s weakness to the shock from the impeachments of President Yoon Suk Yeol and Prime Minister Han Duck-soo, as well as reduced trading in the year's end and vigilance against exchange authorities' fine adjustments.

While the currency market trading will continue at nighttime Monday, it is set to close on Tuesday.

The year-end weekly closing spot rate of one-thousand-472-point-five won, up 184-pont-five won from last year, is the highest in 27 years since one-thousand-695 won posted at the end of 1997.

Meanwhile, the benchmark KOSPI dropped five-point-28 points, or zero-point-22 percent, to close the day's trading at two-thousand-399-point-49.

The tech-heavy KOSDAQ shed 12-point-22 points, or one-point-83 percent, to end at 678-point-19.