Is Bessent acting alone in the Treasuries? What the buyback means

The U.S. Treasury doubles down on buybacks

The U.S. Department of the Treasury announced on Wednesday that it would at least double the volume of buybacks of longer-term securities. The move caught the market by surprise. The goal was clear: to relieve the pressure on yields that had been hitting multi-year highs.

Treasury Secretary Scott Bessent went even further on Thursday. In an interview with the American press, he stated that he was prepared to expand efforts to buy back the more expensive debt and promised a new fiscal initiative to address the high costs of government borrowing.

On Friday, President Donald Trump denied having ordered any intervention. He said Bessent acted on his own and praised what he called the Secretary's "natural touch" in dealing with bonds and interest rates. The statement raises an important question: if the Treasury is acting independently, what is the long-term strategy behind these buybacks?

Why yields exploded in 2026

Yields on long-term U.S. Treasuries have consistently risen in recent months. There is no single culprit. At least four forces are pushing yields higher simultaneously.

First, the budget deficit. The United States continues to spend more than it collects, and the market is beginning to demand a higher premium to finance this gap. As we analyzed in our global finance coverage, the U.S. fiscal trajectory has become a structural concern, not just a cyclical one.

Second, the growth of public debt. The total volume of Treasuries in circulation has reached record levels, and the abundant supply naturally pressures prices down and yields up.

Third, persistent inflation. Despite all the restrictive monetary policy from the Federal Reserve, price indices remain above the 2% target, which requires higher yields to compensate for the loss of purchasing power.

Fourth, and perhaps the most underestimated factor: the flood of corporate debt issuance from technology companies investing heavily in artificial intelligence infrastructure. These issuances compete directly with Treasuries for capital, forcing the government to offer more attractive returns. This phenomenon is directly connected to the AI race we are tracking on the portal.

Did the buyback work? Signs say no

The immediate effect of Wednesday's announcement was positive. Yields on 30-year bonds fell at the time of the announcement. But the reaction was short-lived. The next day, the bonds gave back their gains, and yields rose again.

This is not surprising for those who follow the U.S. fixed-income market. Buybacks of bonds are a liability management tool, not a silver bullet against structural forces. The Treasury can withdraw more expensive bonds from circulation and issue cheaper debt in the short term, but this does not solve the underlying problem: the United States needs to finance growing deficits in a high-interest environment.

The last time the U.S. Treasury used buybacks significantly was between 2000 and 2002, when there was a budget surplus and the goal was to manage the yield curve. The current context is radically different. There is no surplus. There is a deficit exceeding 6% of GDP.

What Bessent intends with the "new fiscal initiative"

The promise of a new fiscal initiative is the most relevant point of this week, although it has received less attention than Trump's denial. If the Treasury acknowledges that it needs something beyond buybacks to control borrowing costs, the market should pay attention.

The options on the table are limited. Bessent may propose spending cuts, which face immediate political resistance. He may try to extend the average maturity of the debt more aggressively, concentrating issuances in shorter maturities where yields are lower. Or he may seek alternative sources of revenue.

Any path will have consequences for global markets. Treasuries remain the benchmark asset for risk pricing worldwide. When 30-year yields rise, the cost of capital rises for everyone: companies, emerging governments, and yes, risk assets like cryptocurrencies.

What this means for investors

For Brazilian investors, the dynamics of Treasuries matter more than they seem. Rising U.S. yields strengthen the dollar, pressure emerging currencies, and raise the bar for required returns on higher-risk assets.

The fact that the effect of the buybacks lasted less than 24 hours is a relevant signal. The market is saying that sporadic interventions are not enough. Without a change in the fiscal trajectory, yields are likely to remain pressured.

The central question is not whether Trump pressured Bessent or not. It is whether the U.S. Treasury has enough tools to deal with a debt market that demands increasingly higher premiums. This week's data suggests that it does not. And this should keep volatility high in the coming months, both in fixed income and equities, on both sides of the Atlantic.