The Investor
28 Sep 2026, 14:56
U.S. Stocks Fall as Oil and Treasury Yields Rise, Reviving Inflation Concerns
U.S. stocks moved lower on Monday as rising oil prices pushed inflation expectations higher and drove Treasury yields back toward multi-decade highs, increasing pressure on equity valuations.
The S&P 500 fell 0.87% to 7,675.86, while the Dow Jones Industrial Average declined 0.63% to 51,503.20. The Nasdaq was the weakest of the major indexes, dropping 1.19% to 26,746.90 as higher bond yields weighed more heavily on technology and other long-duration growth stocks.
The main pressure came from energy markets. Brent crude rebounded as U.S.-Iran negotiations remained stalled and uncertainty over the Strait of Hormuz continued to threaten global supply flows. Higher oil prices are particularly important for equities because they can feed into transportation, production and consumer costs, making inflation harder to contain. (Market Screener)
Bond markets reflected those concerns. The U.S. 10-year Treasury yield climbed to about 5.26%, extending a sharp rise that has already taken yields to their highest levels in nearly two decades. Higher oil prices and stronger inflation expectations have contributed to expectations that the Federal Reserve may need to keep monetary policy tighter for longer.(FXStreet)
Inflation expectations had already been moving higher before Monday’s oil rebound. The University of Michigan’s September survey showed one-year inflation expectations rising to 4.6% from 4.0% in August, while five-year expectations edged up to 3.4% from 3.3%.
Other pressures are also weighing on sentiment. Investors are approaching a busy week of U.S. economic data, including the PCE inflation report and employment figures, while markets continue to assess the possibility of additional Federal Reserve tightening. Elevated government borrowing needs and concern over the U.S. fiscal outlook are also contributing to upward pressure on longer-term yields.
For equities, the combination is uncomfortable: higher oil prices raise inflation risks, higher inflation keeps pressure on the Fed, and higher Treasury yields increase the discount rate applied to future corporate earnings. That dynamic helps explain why the Nasdaq is underperforming the broader market in Monday trading.
U.S. stocks moved lower on Monday as rising oil prices pushed inflation expectations higher and drove Treasury yields back toward multi-decade highs, increasing pressure on equity valuations.
The S&P 500 fell 0.87% to 7,675.86, while the Dow Jones Industrial Average declined 0.63% to 51,503.20. The Nasdaq was the weakest of the major indexes, dropping 1.19% to 26,746.90 as higher bond yields weighed more heavily on technology and other long-duration growth stocks.
The main pressure came from energy markets. Brent crude rebounded as U.S.-Iran negotiations remained stalled and uncertainty over the Strait of Hormuz continued to threaten global supply flows. Higher oil prices are particularly important for equities because they can feed into transportation, production and consumer costs, making inflation harder to contain. (Market Screener)
Bond markets reflected those concerns. The U.S. 10-year Treasury yield climbed to about 5.26%, extending a sharp rise that has already taken yields to their highest levels in nearly two decades. Higher oil prices and stronger inflation expectations have contributed to expectations that the Federal Reserve may need to keep monetary policy tighter for longer.(FXStreet)
Inflation expectations had already been moving higher before Monday’s oil rebound. The University of Michigan’s September survey showed one-year inflation expectations rising to 4.6% from 4.0% in August, while five-year expectations edged up to 3.4% from 3.3%.
Other pressures are also weighing on sentiment. Investors are approaching a busy week of U.S. economic data, including the PCE inflation report and employment figures, while markets continue to assess the possibility of additional Federal Reserve tightening. Elevated government borrowing needs and concern over the U.S. fiscal outlook are also contributing to upward pressure on longer-term yields.
For equities, the combination is uncomfortable: higher oil prices raise inflation risks, higher inflation keeps pressure on the Fed, and higher Treasury yields increase the discount rate applied to future corporate earnings. That dynamic helps explain why the Nasdaq is underperforming the broader market in Monday trading.
