The dollar index fell on Monday, with the yen rising despite Prime Minister Shigeru Ishiba's ruling coalition losing its majority in the upper house, indicating that markets have already factored in the election results.
The dollar index, which measures the greenback's performance against a basket of six other major currencies, fell 0.3% to 98.19.
The euro rose 0.2% to $1.165, and the pound sterling rose 0.45% to $1.346