Yields on long-term U.S. Treasury bonds climbed sharply Wednesday despite a $6 billion government bond buyback aimed at tempering market volatility. The 10-year Treasury note yield briefly reached a three-year high above 4.85 percent following the announcement before easing slightly, while the 30-year bond yield increased to 5.29 percent, up from 5.26 percent the previous day.

The Treasury Department's decision to triple its buyback amount from the typical $2 billion to $6 billion was part of a broader strategy introduced last month by Treasury Secretary Scott Bessent to stabilize the bond market, which had been rattled by surging yields. However, market participants had anticipated a larger intervention, with some insiders expecting buybacks to total $10 billion or more based on prior comments by Bessent.

Financial commentator Stephen Innes described the $6 billion buyback as falling “near the lower end of the whisper range,” and suggested the market was left disappointed by the relatively modest size of the operation. Analyst Patrick O’Hare noted that this shortfall in expectations likely contributed to the sharp increase in yields, while also characterizing the buyback policy as a “shell game” that may not effectively address structural issues in the Treasury market.

Critics, including prominent investors like Stanley Druckenmiller, have argued that the buyback program serves as a temporary and artificial fix that masks deeper fiscal challenges. Druckenmiller emphasized that market prices reflect a broad aggregation of information that cannot be overridden by committee actions, warning that suppressing yields artificially could encourage fiscal procrastination.

The rise in Treasury yields coincided with Brent crude oil prices surpassing $100 per barrel for the first time since late July amid escalating tensions between the United States and Iran. This increase in borrowing costs adds pressure on economic growth and can negatively affect equity markets.

The Treasury’s recent buyback initiative was announced shortly after the 30-year bond yield reached a near two-decade peak of 5.33 percent in August. Bessent has attributed the spike in yields partly to thin trading volumes during the summer and suggested they did not reflect underlying economic fundamentals. Nonetheless, analysts link the surge to multiple factors, including high oil prices, substantial investment in artificial intelligence technology, and increased U.S. government debt issuance driven by federal deficits.

The buyback plan also seems to be at odds with Federal Reserve efforts to control persistent inflation. Amid the rising yields and oil prices, futures markets have raised the likelihood of an upcoming interest rate hike by the Fed. Market participants will closely watch upcoming wholesale and consumer inflation data, including Friday’s consumer price index report, which could influence the Fed’s approach and further affect Treasury yields.