The Japanese yen held against the US dollar after the release of better-than-expected economic data.
This came ahead of US President-elect Joe Biden's reveal of his plan to launch further Covid relief later today, with some estimates putting it at $2 trillion.
The Japanese producer price index fell 2% in December, better analysts' forecasts of a drop by 2.2%.
Most countries around the world are engaged in the war against the coronavirus as the pandemic starts its second year, and Japanese Prime Minister Yoshihide Suga had pledged to eliminate the pandemic in his country before the start of the Olympics.
As of 19:38 GMT, USD/JPY fell less than 0.1% to 103.7, after hitting a high of 104.2 and a low of 103.5.