Dollar index stays lower near 98.8 as yields rise

The dollar index held its decline around 98.8 on Monday, remaining under pressure after posting significant losses last week, as a sharp rise in Treasury yields heightened concerns over the US government’s mounting debt burden and weighed on the dollar’s appeal.

The greenback's decline came as Treasury Secretary Bessent outlined a debt-buyback strategy he described as a “Treasury twist,” under which the government would buy back longer-dated Treasury securities to help influence the yield curve and manage borrowing costs.

Meanwhile, investors continued to monitor tensions in the Middle East, with the US expected to announce new sanctions against Tehran.

Iran, which has already faced decades of US sanctions, said the new measures were “bound to fail.” Investors are now turning their attention to key US economic data and Federal Reserve policy signals, including the July PCE inflation report and remarks from Fed Chair Kevin Warsh at the Jackson Hole economic symposium later this week.