Treasury buyback renews dollar-debasement fears

The U.S. Treasury announced on Wednesday that it will expand purchases of long-dated bonds, doubling the maximum size of certain buyback operations to $4 billion or more. This move comes as a result of heavy selling in these securities since late June. Treasury Secretary Scott Bessent stated that the buyback could surpass the $4 billion cap and that the market may have overreacted to the recent selloff.

This is not the first time the U.S. has employed this tool, as Treasury revived buybacks in 2024 as a liquidity-management strategy for thinly traded older bonds. The timing and scale of this announcement, occurring outside the regular quarterly refunding calendar and just before a 20-year auction, has raised concerns among investors about potential pressure on long-term yields.

These yields have risen due to a deteriorating fiscal outlook, heavy issuance, geopolitical risks, and uncertainty over the Federal Reserve's policy path. The 30-year yield recently hit its highest level since 2007, as Iran war tensions escalated, leading to total public debt surpassing $40 trillion. Experts suggest that policymakers may use measures that could weaken the dollar, either by raising yields or by making U.S. bonds less attractive to investors.

Some investors view this as a form of "soft-form financial repression" to hold down long-term yields, similar to the Federal Reserve's 2011-12 Operation Twist. While some believe this could have negative consequences for the dollar, others argue that the dollar will ultimately be supported by high yields and strong economic fundamentals.