Business · Markets · 3 hrs ago
Citi says rates may matter less to stock valuations as S&P 500 looks expensive
Citi analysts say interest rates still shape economic growth expectations, but their influence on stock valuations and investment flows has weakened.
They point to AI-related earnings hopes and changes in investor portfolios as factors changing the usual link between bond yields and shares.
Citi's model, based on the 10-year US Treasury yield and economic adjustments, estimates a fair-value range for the S&P 500 of 17.1 to 22.1 times company earnings.
The index was trading at 22.4 times earnings, above that range.
Citi says the high valuation may reflect excessive investor optimism and positions that are not cautious enough about risk.
Growth stocks have been more resilient than cyclical and defensive shares, which Citi links to expectations of lasting AI-driven earnings growth.
The analysts say rising bond yields may partly reflect expectations of more government bond issuance, rather than only a too-strong economy.
Citi says future gains depend on where new demand for shares comes from, but it does not identify which investors will provide it.
Citi says interest rates may have less influence on stock valuations and investment flows than they once did.
Its fair-value model puts the S&P 500’s reasonable price-to-earnings range at 17.1 to 22.1, while the index is trading at 22.4 times earnings.
Citi analysts say artificial intelligence-driven earnings expectations and structural changes in investor portfolios are weakening the traditional relationship between bond yields and stocks.
High borrowing costs still matter for economic growth, and Citi says higher Treasury issuance may have contributed to recent rises in bond yields.
The analysts say current valuations may reflect excessive investor optimism and positions that are not cautious enough about possible risks.
- Who
- Citi analysts.
- What
- They say interest rates may matter less to stock valuations as the S&P 500 trades above the upper end of Citi’s fair-value range.
- When
- The article was published on October 17, 2026.
- Where
- The analysis concerns the U.S. stock market, particularly the S&P 500.
- Why
- AI-related earnings expectations and structural changes in investment flows are weakening the traditional link between bond yields and stock valuations.
This story does not have two clearly opposing sides.
This story does not have a timeline yet.
- Fair-value range
- S&P 500 at 17.1 to 22.1 times earnings
- Current valuation
- S&P 500 at 22.4 times earnings
- Model starting point
- U.S. 10-year Treasury yield
- Sector performance
- As of the end of August, cyclical and defensive stocks had fallen while growth stocks were more resilient
- Publication date
- October 17, 2026