US stocks face fourth-quarter headwinds as bond yields surge and AI spending dominates
AI Summary- Investors enter a historically strong fourth quarter facing higher yields, AI spending risks and midterm elections.
- The S&P 500 gained nearly 13% in 2026 and remained about 1% below its August record.
- The 10-year Treasury yield reached 5.34%, its highest level in 24 years, on Thursday.