text: S. Korean won ends up on dollar position unwinding . SEOUL 1996-08-23 The won rose against the dollar on Friday as banks unwound dollar positions on the belief that the won would continue to strengthen , dealers said . The won closed at 818.10 , after opening at 819.10 . It ranged from 817.60 to 819.30 . " The dollar is overbought at the moment , " said a western bank dealer . " The central bank 's insistent intervention just above the 820 level convinced players that it is serious about supporting the won . So some foreign banks began unwinding their dollar positions . "