The Dollar Index closed Wednesday 0.86% lower, just beneath 98.80, marking its weakest close since mid-May and finishing on the session low [1]. The catalyst for this sharp decline was not a central bank action, but a US Treasury notice regarding its government bond buyback programme. The Treasury announced it would double the size of its liquidity support buyback operations in longer-dated nominal coupons, increasing each operation from $2 billion to at least $4 billion across the 10-to-20-year and 20-to-30-year sectors. This change will run from September 9 through November 4, with further details to be addressed in the November refunding [1]. The announcement came just two weeks after the quarterly buyback schedule was published and ahead of a $16 billion auction of 20-year bonds [1].
The immediate market reaction was pronounced. Long yields dropped, with the thirty-year yield falling nearly ten basis points from its recent high of 5.33% (the highest since June 2007), and the ten-year yield easing toward 4.65% [1]. The foreign exchange market responded swiftly, with indiscriminate selling of the Dollar. The Swiss Franc gained nearly 1.8% against the Dollar, the New Zealand Dollar rose about 1%, and the Mexican Peso reached a two-year high. Gold surged toward $4,500 an ounce, accompanied by gains in Silver [1]. This broad-based Dollar weakness was interpreted as a repricing of the issuer, not merely a rate spread adjustment.
Later in the session, the minutes from the July 28-29 Federal Open Market Committee (FOMC) meeting were released, revealing a more hawkish stance among policymakers than the vote tally suggested. Several members favored an immediate rate increase, and many judged further tightening would be necessary if inflation did not decline. Despite this hawkish tone, the currency market treated the FOMC minutes as a non-event, as the Dollar Index had already reacted to the Treasury announcement [1].
Analyst commentary in the article notes that the hawkish bloc within the Fed is wider than the vote count showed and continues to expand, but this did not impact the Dollar Index on the day, underscoring the dominance of the Treasury's actions over Federal Reserve communications in driving currency movements [1].
CONCLUSION
The US Treasury's decision to double its buyback operations in longer-dated bonds triggered a sharp and broad-based decline in the Dollar Index, overshadowing hawkish signals from the Federal Reserve. The market's reaction highlights the significant influence of Treasury actions on currency valuations, with immediate impacts across major currencies and commodities. Forward-looking, the focus remains on Treasury policy rather than central bank rhetoric.