The US dollar initially rallied during the trading session against the Japanese yen on Monday but gave back the gains rather quickly to show signs of weakness. The US dollar is getting hammered against almost everything.
The British pound skyrocketed against the Japanese yen as it did almost everything else out there on Monday, breaking above the most recent highs.
Any strong economic news from the U.S. is likely to underpin U.S. Treasury yields. This could make the U.S. Dollar a more attractive investment.