The S&P 500 equity risk premium over 10-year U.S. Treasury notes has dropped to -1.5 percentage points, reaching its lowest level since 2009, according to market commentary outlet The Kobeissi Letter. This milestone means low-risk government debt currently offers a higher yield than benchmark U.S. equities, heading toward a third consecutive annual negative reading—the longest such streak since 2002.
Key Takeaways
- Yield Gap Reverses: The spread between the S&P 500 earnings yield and the 10-year Treasury yield stands at -1.5 percentage points.
- Historic Five-Year Decline: The premium has plummeted 440 basis points (or 4.4 percentage points) since 2022, marking the sharpest five-year collapse since the 1970s.
- High Treasury Yields: The 10-year Treasury yield reached 5.36% on Oct. 7, 2026, its highest point since 2002.
- Valuation Disconnect: Trailing S&P 500 earnings yields sit near 3.9% (roughly 26 times trailing earnings), though FactSet estimates forward earnings at 19 times expected profits (a 5.3% forward yield).
Record Contraction in the Equity Risk Premium
The equity risk premium measures the extra compensation investors expect for holding stocks over risk-free government debt. When stock prices rise faster than corporate earnings or bond yields climb rapidly, this spread contracts. Driven by heavy federal debt issuance and persistent inflation, rising bond yields have drastically shifted the dynamic as macro pressures hit broader risk assets while Treasury yields reached multi-decade highs.
At a 10-year Treasury yield of 5.36%, the negative -1.5 percentage point spread implies a trailing earnings yield of roughly 3.9%, translating to a trailing price-to-earnings ratio of about 26. Forward valuations present a somewhat balanced picture, with FactSet placing forward S&P 500 earnings at 19 times projected profits. That equates to a forward earnings yield near 5.3%, bringing equities roughly even with current government bond payouts even as analysts project strong corporate earnings growth.
Long-Term Returns and Valuation Risks
Negative risk premiums historically coincide with periods of aggressive market speculation and elevated valuations. A 2025 study by Bloomberg columnist Nir Kaissar noted that while the yield spread is a poor short-term predictor over one to five years, it demonstrates a 0.51 correlation with 10-year equity returns, indicating weaker long-term stock performance ahead.
Why It Matters
When risk-free Treasury bonds match or beat stock yields, equity investors take on company risk without receiving traditional valuation compensation. This structure pushes institutional capital toward fixed income, constraining stock market upside unless corporate profits accelerate significantly to bring price-to-earnings ratios back down. If high debt levels keep Treasury yields elevated near multi-decade highs, equities remain uniquely vulnerable to valuation compression across late 2026.
