S&P 500's Record Rally Halts as Oil Near $100 Revives Rate-Hike Bets

Illustrative photograph: Industrial refinery towers and a tall crane under a warm orange sky

Key points

The S&P 500 turned lower after touching a record high as Brent crude settled near $100 a barrel.
Minutes showed all 19 Fed officials backed September's rate increase, many as a precaution against stronger inflation, and money markets assign a strong chance of another hike by the end of 2026.
SpaceX is reportedly in talks to raise $40 billion to buy Nvidia chips, a financing that would rank among the largest debt deals tied to AI infrastructure.

The S&P 500's record-setting rally came to a halt as Brent crude settled near $100 a barrel, reviving fears that persistently high energy costs will keep inflation hot enough to push the Federal Reserve into another interest-rate increase.

The oil move itself is a risk premium rather than a supply loss. Traders weighed increased Iranian attacks on vessels in the Strait of Hormuz against continued steady oil flows out of the Middle East, leaving Brent near $100 even though barrels are still moving. Crude is an input cost for trucking, airlines, manufacturing and shipping, so a price that holds near triple digits feeds into headline inflation — the same measure the Fed is trying to bring down. High energy costs therefore argue against the easier policy that markets had been anticipating.

The Fed's latest meeting minutes showed all 19 officials supported September's rate increase, with many favoring it as a precaution against the possibility of stronger inflationary pressures. Money markets now assign a strong possibility of another increase by the end of 2026. That pricing is not a Fed promise: it reflects where traders are willing to bet the policy rate will sit, based on futures contracts tied to short-term rates.

Bond investors are demanding more. The 10-year Treasury yield recovered from its session lows after a strong $39 billion bond sale, though it stayed close to its highest level since 2002. The worries driving that demand for higher returns include inflation, rising government spending and growing corporate borrowing to fund the expansion of artificial intelligence. Bitcoin also declined.

The scale of that AI-linked borrowing was on display elsewhere: SpaceX is reportedly in discussions with banks and investors to raise $40 billion to purchase chips from Nvidia, a financing that would rank among the largest debt deals ever tied to AI infrastructure if completed. Debt raised for that buildout competes with government bonds for the same investor money. Taken together, the facts point to one condition that matters most for the rally's pause: crude holding near $100 without an actual supply disruption keeps the oil premium reversible, while a unanimous committee and money-market pricing tilted toward tightening mean the equity market's recovery depends on inflation data improving rather than on the Fed relenting.

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