August 21, 2026 | By the Elystar Team

The long end of the US Treasury yield curve is sending an important signal. As of August 17, 2026, long-term US Treasury yields stood at approximately:

• 10-year Treasury: 4.72%
• 20-year Treasury: 5.30%
• 30-year Treasury: 5.31%

These are very different levels from what investors became accustomed to during much of the post-2008 era, when exceptionally low interest rates became a defining feature of global financial markets.

Forces that could keep long-term Treasury yields elevated

1. Persistent Inflation

Inflation expectations are an important component of nominal bond yields. If investors believe inflation will remain structurally higher—or simply more uncertain—they are likely to demand greater compensation for committing capital at a fixed nominal rate for decades. Even if inflation moderates in the near term, uncertainty around its long-term path can keep upward pressure on yields.

2. Large Fiscal Deficits and Treasury Issuance

Persistent fiscal deficits require continued government borrowing. That means a greater supply of Treasury securities must be absorbed by domestic and international investors. All else equal, if the supply of long-term government debt grows faster than investor demand, yields may need to rise to attract sufficient capital. Fiscal policy can therefore influence long-term borrowing costs even when monetary policy is moving in the opposite direction.

3. A Higher Term Premium

Investors generally require compensation for the risks associated with holding long-duration bonds rather than repeatedly investing in shorter-term securities. This compensation is commonly referred to as the term premium. Greater uncertainty around inflation, fiscal policy and future interest rates can increase the premium investors demand for committing capital over long periods. As a result, long-term yields can remain elevated even if markets expect the Federal Reserve to reduce short-term rates.

4. Resilient US Economic Growth

Strong economic growth can also support higher long-term yields. If the US economy remains resilient, investors have less reason to expect interest rates to return to the exceptionally low levels that characterized much of the 2010s. Stronger growth can also support investment demand, wage growth and inflation, potentially keeping equilibrium interest rates higher than they were during the previous decade.

5. Geopolitical Risk

Geopolitics is particularly interesting because it can push Treasury yields in either direction.

Traditionally, periods of geopolitical stress have encouraged investors to seek the perceived safety and liquidity of US Treasuries: Geopolitical uncertainty → flight to safety → Treasury demand → lower yields

But geopolitical events can also create inflationary shocks. Conflict or trade disruption can affect energy prices, transportation networks, commodity supplies and global supply chains. If these developments raise inflation expectations or reduce expectations for monetary easing, the result can be: Geopolitical shock → supply disruption → higher inflation expectations → fewer expected rate cuts + greater uncertainty → higher yields

The effect of geopolitics on Treasury yields therefore depends not only on risk aversion, but also on the economic consequences of the event itself.

Developments that could create sustained downward pressure on long-term Treasury yields

• A convincing and durable decline in inflation
• Materially weaker US economic growth
• A sustained Federal Reserve easing cycle accompanied by confidence that inflation has been contained
• Improved expectations for future fiscal deficits and government borrowing
• Stronger structural demand for long-duration Treasuries
• A flight to safety that materially increases demand for US government bonds

 
The implications of higher US long-term treasury yields extend far beyond the bond market. Long-term US Treasury yields influence discount rates, corporate financing costs, mortgage rates, asset valuations and the relative attractiveness of risky assets around the world.

If investors can earn around 5% from long-term US government securities, the hurdle rate for allocating capital to equities and other risk assets can become meaningfully higher.
 

Data Sources: Federal Reserve, H.15 Selected Interest Rates; U.S. Department of the Treasury, Daily Treasury Par Yield Curve Rates; Federal Reserve research and Monetary Policy Reports.
 

Disclaimer: This content is intended solely for informational and educational purposes. It does not constitute investment, legal, tax, or financial advice, and should not be construed as a recommendation, offer, or solicitation to buy or sell any security or investment product. This is not an advertisement. While reasonable care has been taken to ensure the accuracy of the information presented, inadvertent errors or omissions may occur. Elystar Investment Management Private Limited shall not be liable for any loss or damage arising from the use of, or reliance on, this content. Past performance is not indicative of future results. Investments in the securities market are subject to market risks. Read all the related documents carefully before investing. Registration granted by SEBI, enlistment with BSE, and certification from NISM in no way guarantee performance of the intermediary or provide any assurance of returns to investors.

Copyright © 2026 Elystar Investment Management Private Limited. All rights reserved. No part of this publication may be reproduced, distributed, transmitted, published, stored, modified, or used, in whole or in part, without the prior written permission of Elystar Investment Management Private Limited.
 

Back to all Insights