The US dollar extended its decline in August, posting a second consecutive monthly drop, as the Federal Reserve reiterated its inflation-fighting resolve and the Treasury Department accelerated its bond buyback program, sending mixed signals that unnerved global investors.
In August, Treasury Secretary Bessent unexpectedly announced an expansion of the government's debt buyback initiative, a move that rattled offshore investors and reignited speculation that US policy is deliberately aimed at steering the dollar weaker. Hedge funds, asset managers and other speculative players subsequently pared back their bullish dollar bets. On Monday, Bessent publicly stated that he and Fed Chair Warsh are "in lockstep" on debt matters.
This barrage of signals suppressed the dollar's rebound momentum late last week. Despite Warsh's Friday vow to restore US inflation to the 2% target, which triggered a sharp single-day surge in the greenback, the dollar slipped 0.2% on Monday. The Bloomberg Dollar Spot Index fell 0.9% in August, extending the 1.3% decline seen in July.
Where the trend stands
Traders have ramped up bets on a Fed rate hike this year, with market pricing implying more than a 50% probability of a September move. However, Wells Fargo strategist Erik Nelson cautioned that if the Fed fails to deliver the magnitude of tightening already priced in, dollar weakness could persist through September.
The index lost 0.9% in August, following July's 1.3% slide, marking declines in five of the first eight months of the year and hitting the longest losing streak since February.
The driving force behind the slide
The core catalyst for the slump stems from the Treasury's debt management operations. Bessent's early-August announcement of an expanded government bond repurchase program caught overseas investors off guard, reviving speculation that US policy is oriented toward guiding the currency lower.
Tatiana Darie, a macro strategist at Markets Live, noted that Warsh's reaffirmation of the inflation target eased concerns about monetary policy credibility, but Bessent's latest comments remind investors that his interventionist approach introduces an additional dimension of policy risk to the dollar.
Hawkish signals and rate expectations
Warsh's hawkish remarks on inflation last week triggered a brief dollar rebound and pushed markets to reprice the possibility of rate hikes. Traders now price in more than 50% odds of a Fed move in September.
Wells Fargo's Erik Nelson believes this pricing may not be sustainable, stating that the Fed may not deliver the rate increase markets have already priced in for September, which could leave the dollar vulnerable to declines next month. Notably, Warsh's well-known aversion to forward guidance means every economic data release becomes a potential trigger for repricing, and the one-month implied volatility on the dollar index has risen noticeably over the past two trading sessions.
Key data ahead
With policy signals from the Fed and Treasury intertwined, the market's sensitivity to macroeconomic data is escalating sharply. This week's focus shifts to Friday's US nonfarm payrolls report. Given Warsh's distaste for forward guidance, each upcoming data point carries greater weight and could act as a catalyst.
Alex Cohen, a foreign exchange strategist at Bank of America, said August US data will be pivotal, as weak employment and inflation figures could dampen rate-hike expectations, while any upside surprise would present another major credibility test for the Fed.
Friday's jobs report will serve as the first critical test for the dollar's near-term trajectory.