After briefly testing the 110 yen level earlier this month, the dollar has given up much of its recent gains and is now hovering around 107 yen.
Still, the continuing flow of foreign funds out of Japanese stocks could presage a weaker yen.
The dollar's strong showing in recent weeks was mainly due to speculative purchases and Bank of Japan Gov. Masaru Hayami's remarks suggesting an end to the nation's ultraeasy money policy.