Oil prices jump, while the Dow drops more than 1,100 as sinking AI
stocks drag Wall Street lower
[July 30, 2026] By
STAN CHOE
NEW YORK (AP) — Oil prices got back to jumping on Wednesday, while
sinking technology stocks dragged Wall Street lower amid uncertainty
about what the Federal Reserve will do to get high inflation under
control.
The S&P 500 fell 1.5% after swinging sharply between gains and losses in
the last hour of trading. The Dow Jones Industrial Average dropped 1,153
points, or 2.2%, and the Nasdaq composite slumped 1.7% to fall 9.8%
below its record set last month.
The action was more decisive in the oil market, where the price of Brent
crude leaped 7.3% to settle at $88.09 per barrel after fighting resumed
in the war with Iran and raised worries about the global flow of oil.
Brent oil’s price had swung as low as $72 early this month and as high
as $102 last week on uncertainty about whether the United States and
Iran could reach a deal to allow oil tankers to move freely again from
the Middle East to customers worldwide.
The swings have raised worries that inflation will reaccelerate, and
traders came into the day betting on a roughly 34% probability that the
Fed would raise its main interest rate in the afternoon, according to
data from CME Group.
Higher rates can keep a lid on inflation, but they can also slow the
economy and undercut prices for stocks and other investments.
Fed officials instead voted to keep the federal funds rate steady,
though three members of the policymaking committee did want to raise
rates. The Fed’s chairman, Kevin Warsh, implied the bond market may
already be doing some of the work to restrain inflation, and he pointed
to how yields have climbed since the central bank’s last meeting six
weeks ago.
He reiterated his commitment to get inflation back to 2% following years
of faster-than-hoped increases in prices, but he also stuck to his plan
of giving financial markets fewer clues about what the Fed may do with
interest rates in the near future.
With less guidance from the Fed, financial markets may be set for more
volatile trading amid the uncertainty.
“Did the Fed take an explicit change in its policy rate today?” Warsh
asked rhetorically in a press conference following the Fed’s decision.
“No, but I think that’s the beginning of the story.”
Treasury yields swiveled up and down following the Fed’s decision and
Warsh’s insistence on not guiding the market.
The yield on the two-year Treasury, which closely tracks expectations
for Fed action, fell to 4.24% from 4.26% late Tuesday.
But the 10-year Treasury yield, which moves more with expectations for
inflation and economic growth in upcoming years, went in the opposite
direction. It jumped to 4.68% from 4.61% late Tuesday.
That’s up from 3.97% before the war with Iran sent oil prices much
higher, and the increase has already sent long-term U.S. mortgage rates
to their highest level in nearly a year.
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The New York Stock Exchange is seen in New York, Thursday, March 19,
2026. (AP Photo/Seth Wenig, File)
 Higher rates particularly hurt
stocks seen as the most expensive, and scrutiny has already been
rising on makers of computer chips and other winners of the frenzy
around artificial-intelligence technology.
The recent surges for sellers of computer processors and memory are
backed by real revenue and profits, but the exceptional growth won’t
be sustainable if AI does not produce as much profit and
productivity as hoped.
The skepticism has hit South Korea’s stock market in particular
because it’s dominated by two tech giants, Samsung Electronics and
SK Hynix. Seoul’s Kospi index tumbled 6% Wednesday, a day after it
plunged 10.8%, and trimmed its gain for the year so far to 34.4%.
SK Hynix’s stock in Seoul dropped 9.6%. It reported record amounts
of revenue and profit for a quarter thanks to strong demand because
of AI. But its 257% growth in revenue still wasn’t enough to meet
analysts’ expectations.
On Wall Street, Nvidia was the heaviest weight on the S&P 500 after
the chip company fell 3.6%.
KLA Corp., whose products and services help make semiconductors,
lost 10.8% even though it reported stronger-than-forecast profit and
revenue for the latest quarter. Expectations were high after its
stock surged nearly 150% in this year’s first six months.
On Tuesday, gains for stocks outside of AI helped offset weakness
for tech companies. Analysts have been saying such a rotation in the
market from AI to less-loved areas could be healthy, but the
majority of U.S. stocks fell with tech on Wednesday.
Hims & Hers Health tumbled 14.7%, for example, after the Federal
Trade Commission, Utah and California alleged it shared consumers’
sensitive health information about medical conditions with
third-party advertising platforms despite claiming its services
maintain consumers’ privacy. Hims & Hers said their lawsuit is
contorting “the law to try to manufacture claims,” which it called
baseless.
All told, the S&P 500 fell 112.63 points to 7,316.15. The Dow Jones
Industrial Average dropped 1,153.18 to 51,594.14, and the Nasdaq
composite sank 433.97 to 24,442.94.
In stock markets elsewhere around the world, indexes were mixed.
Hong Kong’s Hang Seng rose 2%, and Japan’s Nikkei 225 fell 1.5% for
two of the bigger moves.
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AP Business Writers Yuri Kageyama and Matt Ott contributed to this
report.
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