Dollar Slumps Amid US Treasury Expansion Plans

The USD/JPY currency pair had an eventful week as it navigated through various economic data releases and market reactions. The week began with the pair opening at 159.19, but it slipped below this level during Tokyo and European trading on August 17 before recovering as US economic data improved and oil prices rose.

As the pair continued to edge higher, it reached a high of 159.78, but struggled to extend gains due to concerns over possible intervention by Japanese authorities. The 160 psychological resistance level became a point of contention, causing the pair to gradually fall back toward 159 during Tokyo trading on August 19.

However, a US Treasury announcement to expand UST buybacks from September triggered broad-based dollar selling, pushing the USD/JPY to a low of 158.03 early in Tokyo trading on August 20. The pair avoided breaking below 158 and rebounded as UST yields recovered, returning above 159 and erasing the previous day's decline.

The dollar weakened against major currencies this week, partly in response to the US Treasury announcement, which also caused the yen to weaken broadly outside of the USD/JPY. The EUR/JPY rose above 185 for the first time since July 31.