As the U.S. 30-year Treasury yield surged past 5.27%—reaching levels not seen since 2007—former Congresswoman Marjorie Taylor Greene voiced concerns over expanding national deficits, warning that Social Security will go “bankrupt in 2032.” However, prominent Wall Street figure Louis Navellier dismissed fiscal panic, backing U.S. Treasury Secretary Scott Bessent and declaring, “In Scott Bessent I Trust.”
Political Alarm vs. Treasury Confidence
The surge in 30-year bond yields has ignited a fierce political and financial debate. Greene warned on X that “years of foreign wars and Congress spending too much money” are driving up government debt servicing obligations, predicting that “the national debt is well past $50T, and the interest is over $2T.”
Years of foreign wars and Congress spending too much money is why we are in this position.
— Former Congresswoman Marjorie Taylor Greene🇺🇸 (@FmrRepMTG) August 18, 2026
And they are still waging more war, which requires more money.
Just wait until Social Security goes bankrupt in 2032, the national debt is well past $50 T, and the interests is over $2 T. https://t.co/1f48WBaX97
In sharp contrast, Navellier, founder and chief investment officer of Navellier & Associates, brushed off the bond market volatility as a “non-event.” Navellier exclusively told Benzinga that “under Scott Bessent, the yield curve is normal, and the bid-to-cover ratios at the Treasury auctions are healthy”. He added that global “bond vigilantes are more focused on Britain, France and Japan.”
Experts Split on ‘Debt Spiral’ Risks
Despite Navellier’s optimism, financial strategists remain divided on whether high long-term yields signal structural fiscal danger. Alex Tsepaev, Chief Strategy Officer at B2PRIME Group, cautioned that while a crisis is not imminent, “the runway is definitely getting shorter.”
Tsepaev told Benzinga that when effective interest rates outpace nominal GDP growth, “the classic debt spiral mechanism kicks in”. He warned that sticky 5%+ real yields will hit “long-duration growth equities — unprofitable tech, speculative AI infrastructure and high-multiple software names.”
Offering a middle ground, financial analyst Dean Chen, in a comment provided exclusively to Benzinga, described the U.S. economy as being in a “transition zone between rising fiscal stress and a self-reinforcing debt spiral.” Chen identified private equity, venture capital, and REITs as the sectors facing the sharpest valuation recalibration under sustained 5%+ yields.
Fixed-Income Opportunity or Value Trap?
Addressing whether current levels represent a generational buying opportunity, Chen highlighted that “high yields and peak yields are two very different things.” He framed current yields as a “highly attractive long-term fixed-income opportunity, but not yet an unconditional generational buying opportunity,” recommending that investors build duration gradually amid persistent inflation and fiscal uncertainties.
Meanwhile, Navellier said, “The ‘sweet spot’ on the Treasury yield curve is between 2 and 5 years.”
Market Background & Fiscal Context
The multi-decade highs in yields come as the U.S. national debt approaches $40 trillion, with fiscal year deficits projected near $2.1 trillion according to the Congressional Budget Office.
Economist Peter Schiff highlighted that the 30-year yield crossed 5.3% for the first time since April 2007, when national debt was under $8.8 trillion.
The yield on the 30-year Treasury is above 5.3% for the first time since April 2007. At the time the U.S. national debt was still under $8.8 trillion. Now it's over $39.9 trillion, over 4.5x as large. Plus, in 2007 bond yields were still trending down. Now they are trending up.
— Peter Schiff (@PeterSchiff) August 17, 2026
Meanwhile, finance professor David Kass cited Ed Yardeni, indicating that despite higher borrowing costs, broader equities remain fairly valued.
Ed Yardeni: "Interestingly, despite the recent rise of the 10-year Treasury bond yield, the S&P 500 remains slightly undervalued. If the yield rises to 5.00%, the "fair-value" P/E would be 20.0 (i.e., the reciprocal of the bond yield). That’s roughly where it is now.
— David Kass (@DrDavidKass) August 18, 2026
With the…
How Have Stocks and Bonds Performed?
At the last check, the 30-year Treasury bond yielded 5.27%, the 10-year Treasury bond was at 4.69%, and the two-year bond was at 4.16%.
The primary ETF specifically tracking the long end of the U.S. Treasury yield curve—including the 30-year benchmark bond—is the iShares 20+ Year Treasury Bond ETF (NASDAQ:TLT), which closed 0.38% higher at $81.66 on Tuesday. It was lower by 7.06% year-to-date, down 3.38% over the last month and 5.21% over the last year.
The S&P 500 index has advanced 12.15% year-to-date. Similarly, the Nasdaq Composite index was up 17.00%, and the Dow Jones gained 10.25% YTD.
On Tuesday, the SPDR S&P 500 ETF Trust (NYSE:SPY) and Invesco QQQ Trust ETF (NASDAQ:QQQ), which track the S&P 500 and Nasdaq-100, respectively, closed lower. The SPY was down 0.68% to $767.45, while the QQQ declined by 1.69% to $717.51. Meanwhile, the Dow tracker, State Street SPDR Dow Jones Industrial Average ETF Trust (NYSE:DIA), also ended 0.24% lower at $532.91 on Tuesday.
Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.
Photo courtesy: Shutterstock/ Philip Yabut
