Q3 2026 Market Recap & Q4 Outlook: Rates, Oil and the Midterms

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KEY POINTS

The Bond Market Took the Wheel

  • Oil prices topped $100/bbl in September. Crude jumped 30% in Q3 amid supply concerns, and in our view remains the swing factor for future Fed rate hikes into year-end.
  • The Fed hiked interest rates. The Fed’s first rate increase since 2023 came with a signal of one more, which suggests we are entering a “higher for longer” rate period (even if the Fed stops hiking).
  • Yields soared as the 10yr Treasury moved above 5%. The 10-year Treasury closed above 5% for the first time since 2007, and across Treasuries, corporates and municipals, high-quality yields are the most attractive in over a decade.
  • Market breadth narrowed (again). The S&P 500 set a record high, while small caps fell nearly 8% as diversification benefits dampened amid a shift back to the largest companies; we suggest holding diversification steady rather than chasing the leaders.
  • Earnings delivered and remain the market’s backbone. S&P 500 profits are up nearly 30% over the past year, which has helped stocks largely absorb the impact of higher rates.

Q3 2026 market performance table: S&P 500, Nasdaq, small caps, international, bonds, oil and gold as of September 30, 2026

Rates and the Midterms Take Center Stage

This quarter was anything but normal. The broadening rally we highlighted in our Q2 2026 market recap narrowed once again, as volatility pushed investors back toward the safety of the market’s largest companies. Accelerating geopolitical uncertainty ahead of the midterms, combined with the ongoing fallout from the Iran War, kept investors on edge throughout the quarter. Oil prices remained volatile as the Strait of Hormuz continued to be largely closed, and crude crossed $100 again by mid-September, pushing the Federal Reserve to raise rates for the first time since July 2023.



Oil price swings in 2026 and the federal funds rate, showing the Fed's first rate hike since 2023

For investors, what made this quarter even more unusual is where the pain showed up. In Q1 the oil shock hit stocks; in Q3 it hit bonds. The 10-year Treasury yield climbed from 4.4% to 5.3%, the broad bond market lost 3.5%, and municipal bonds fell 6.3%. These types of movements in portfolio “hedges” and “protection” are what test investors’ discipline around being “diversified,” as equity, despite all its volatility, remains up 12% on the year (while nearly all classes of fixed income are down).

See more: Economic/Market Commentary: 6 Charts We’re Watching in Q4 2026