Oil at $90 knocks Wall Street as yields hit 20-month high
Published on September 2, 2026
Oil is running Wall Street again. US crude jumped more than 5% on Tuesday after fresh strikes between the United States and Iran, and all three major indexes gave ground with it. The logic is blunt: expensive oil means more inflation, and a Fed that could raise rates rather than cut them.
Oil drags the US indexes lower
The S&P 500 lost 0.71% to close at 7,631. The Dow shed 418 points, or 0.79%, to 52,767. The Nasdaq fell 1.03% to 26,099, according to Investrade's session review. Tech took the hardest hit, as it usually does when yields climb.
The spark came from the Strait of Hormuz. US forces struck Iranian missile launchers on Larak Island on Sunday and Tehran hit back at American air bases in Jordan. WTI gained 5.2% to $90.22 and Brent 4.6% to $94.65. In Europe, the STOXX 600 eased 0.6% to 651.1 and the DAX dropped 1.2%.
Long-term yields at a 20-month high
The US 10-year yield climbed to 4.79%, its highest in 20 months, TheStreet reported. Capital.com analyst Daniela Hathorn said yields at these levels, plus geopolitical uncertainty, put a ceiling on valuations, above all on the most expensive names.
The market has flipped its script. CME FedWatch now puts the odds of a 25 basis point hike on September 16 at 66.4%, Yahoo Finance reported, against a hold as the base case only a week earlier. Fed Governor Michael Barr said he is open to an increase if inflation does not head back toward 2%. Gold failed as a haven and lost 1.90% to $4,396 an ounce. Bitcoin slipped back below $78,000.
Cracks under the surface
The index moves look contained. The detail does not. Fewer than half of S&P 500 members still trade above their 50-day moving average, down from 70% in mid-August. Schwab strategist Alex Coffey also points out that correlation between stocks inside the index has fallen to 0.10, the lowest since 1990. For a trader that means one thing: the index barely moves while the stocks inside it move a lot.
In Europe, euro zone inflation came in at 3.3% year on year in August. Carsten Brzeski, global head of macro at ING, expects an ECB rate hike next week, an insurance move to stop the energy shock feeding into the rest of the price basket.
Key levels today
| Instrument | Level (support / resistance) | Change (September 1 session) | Scenario / What to watch |
|---|---|---|---|
| S&P 500 | Support 7,550 / 7,620, resistance 7,816 | -0.71% | The 7,550 to 7,620 band holds the 50-day moving average. While it holds, the pullback stays orderly. Below 7,550, the 100-day average near 7,400 becomes the target. |
| WTI | Support $85.07, resistance $92.01 | +5.2% | Crude cleared $87.30. A close above $92.01 opens the path toward $98. A drop back under $85.07 would cancel the move. |
Economic calendar
All times Eastern.
- 8:15 a.m., ADP National Employment Report (August). A print well above the 55,000 total payrolls expected on Friday sends yields higher again and hurts tech. A soft number would give the indexes room to breathe.
- Thursday 10:00 a.m., ISM Services PMI. Above 50 with prices paid rising, the inflation story sticks and the Fed keeps a heavy hand. Below 50, the market switches to slowdown risk.
- Friday 8:30 a.m., US Employment Situation (August). Consensus sits at 55,000 jobs after a drop of 23,000 in July, per FinancialJuice. Goldman Sachs and Credit Agricole see 65,000, Wells Fargo 80,000. Above 100,000 with firm wages, a September 16 hike becomes the base case.
The bottom line
Oil at $90 has revived inflation fear and pushed US long-term yields to a 20-month high, which hits the indexes and tech first. Everything now rides on the labour data, with ADP today and the official report on Friday.
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This is not investment advice. Informational content only.