Why One Portfolio Manager Is Betting on Long-Dated Treasuries

By Patricia Miller

2 min read

Jason Borbora-Sheen at Ninety One bets on long-dated Treasuries, believing they are undervalued as inflation expectations drop.

The Treasury market has seen significant movements recently, yet Jason Borbora-Sheen at Ninety One is preparing to take a different stance. He believes that long-dated Treasuries are currently undervalued and anticipate a bounce back. His thesis hinges on expectations for inflation to decline, along with a belief that the Federal Reserve Chair Kevin Warsh will have his credibility restored.

#Why Choose Long-Dated Treasuries Over Shorter-Term Notes?

Borbora-Sheen is strategically positioning himself by betting on 30-year Treasuries to outperform 10-year notes. This approach runs counter to the prevailing market sentiment, which has favored a yield-curve steepening strategy for months. Since mid-2026, long-dated bonds have experienced a sharp selloff, creating what Borbora-Sheen identifies as a market mispricing. Here, 30-year bonds can be purchased at rates that exceed compensation for the associated inflation risks.

#Is Warsh's Credibility Key to the Market's Outlook?

The Fed has kept its benchmark rate steady, signaling its belief in having implemented sufficient measures to bring inflation closer to the 2% target. However, despite these rates, progress has been inconsistent, leading to uncertainty among bond traders regarding future rate trajectories.

Warsh’s firm communications in July 2026 caused substantial shifts in long-dated yield rates as investors began reassessing his statements and their probable implications. Should Warsh’s policies succeed in achieving a durable decrease in inflation, the market will likely adjust its expectations, favoring long-dated bonds, which is exactly where Borbora-Sheen is focusing his investments.

#What Should Fixed-Income Investors Watch For?

Ninety One, a South Africa-based asset management firm known for its active fixed-income strategies, highlights the importance of monitoring upcoming inflation data. If the upcoming release of inflation figures shows signs of advancing towards the 2% goal, Borbora-Sheen’s strategy could yield favorable results quickly. Conversely, any return of inflationary pressures would challenge this stance and potentially prolong the long-term bond selloff that began last summer.

If the Fed decides to cut rates in response to improving inflation, it would act as a significant boost for all bond yields, particularly the 30-year bonds, which are positioned to gain the most from decreased rate expectations and lower term premiums.

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Important Notice And Disclaimer

This article does not provide any financial advice and is not a recommendation to deal in any securities or product. Investments may fall in value and an investor may lose some or all of their investment. Past performance is not an indicator of future performance.