Global benchmark crude gained roughly 2 percent at the open in Asia after US Central Command confirmed a strike on Iranian positions near the Strait of Hormuz, ending a lull in hostilities that had held since late July. Dow futures traded about 0.1 percent lower in early trading, while S&P 500 and Nasdaq 100 futures posted similarly modest declines as investors weighed the risk of renewed disruption to shipping lanes against a market that has otherwise had a strong month.
The pullback followed a Friday session in which the S&P 500 closed roughly 0.3 percent lower after Federal Reserve Chair Kevin Warsh's remarks at the Jackson Hole symposium were read by some traders as leaving the door open to a rate hike rather than a cut at September's meeting. The dollar held onto those gains heading into the new week.
Even with Monday's early jitters, Wall Street has been on track for a fifth straight monthly advance. The Dow was up about 2.1 percent for the month heading into the final trading day, while the S&P 500 and Nasdaq Composite were on pace for their first monthly gains since May, both having touched fresh record highs earlier in August.
“A clearer path to an agreement could renew downward pressure as supply prospects improve, while any escalation in tensions or new incidents could quickly restore the upward trend in crude prices”
— Thadeu Dos Santos, regional director at trading platform Infinox
AI Stocks Still Driving the Rally
Much of August's advance has been powered by artificial intelligence-linked names, with the S&P 500's technology sector up nearly 6 percent for the month. Nvidia climbed more than 8 percent over the period, while Microsoft and Micron Technology advanced 11 and 13 percent respectively, underscoring how concentrated this year's gains have been in a small handful of AI-exposed stocks.
That strength has held up despite a genuinely rough month for fixed income, as inflation concerns pushed Treasury yields to multiyear highs. The Treasury Department has tried to calm that selloff by signaling it will step up debt repurchases, though yields remain elevated relative to where they started the year.
Traders Watching the Strait Closely
Energy traders have spent months pricing the Strait of Hormuz as a persistent source of supply risk, given that roughly a fifth of the world's seaborne oil normally passes through the waterway. Even before Sunday's exchange, shipping traffic through the strait remained well below pre-war levels, with monitoring agencies describing commercial transit as reduced heading into the weekend.
Analysts said the reopening of hostilities is likely to keep a floor under crude prices in the near term, reversing some of the modest declines logged in recent sessions as traders had cautiously priced in the chance of a diplomatic thaw. With no negotiations currently underway between Washington and Tehran, traders said crude is likely to stay tightly correlated with headlines out of the Gulf for the foreseeable future.
Next checkpoint
What to watch
Brent and WTI prices, tanker traffic, insurance costs, official shipping advisories and whether the military exchange broadens.
Evidence
Sources and editorial notes
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