Dollar: Yield Management Weighs on Currency Performance — BBH

Brown Brothers Harriman (BBH) Global Head of Currency Strategy Elias Haddad said that as the U.S. Treasury's buyback program rolls out, long-term Treasury yields have edged lower, dragging the dollar's performance against all major currencies. Haddad believes that expanding buyback operations alongside fiscal messaging, while limiting upside in long-end yields, may undermine market confidence in the dollar.

**Buyback Operations Cap Long-End Rates**

The U.S. Treasury uses its buyback program to adjust market duration, directly absorbing long-term Treasury supply, thereby pushing down long-end yields. This operation helps stabilize funding costs in the short term, but Haddad noted the cost is damage to dollar creditworthiness. When the market perceives policy as artificially suppressing rates, the appeal of dollar assets may decline, leading capital flows toward other currencies.

**Dollar Faces Structural Challenges**

Beyond buyback effects, the dollar also confronts deeper structural pressures. Market reports indicate that the rapid expansion of stablecoins is reshaping demand patterns for ultra-short-term Treasuries. Stablecoin issuers must hold large amounts of short-term Treasuries as reserve assets, which to some extent diverts traditional dollar buying. If long-end yields remain constrained while short-end demand is absorbed by stablecoins, the shape of the dollar yield curve could flatten further, weakening the dollar's carry advantage.

**Outlook: Fiscal vs. Inflation Dynamics**

Although the buyback program suppresses long-end rates in the near term, the inflation outlook still poses upside risks to Treasury yields. According to CME Group analysis, tight labor market conditions and rising protectionism could drive structural inflation higher, forcing the Federal Reserve to keep rates elevated for longer. If inflation data continues to exceed expectations, long-end yields may re-accelerate, potentially offering the dollar some respite. However, BBH's Haddad emphasized that current policy paths have placed the dollar in an unfavorable position of a "credibility discount."