The market had gotten ahead of itself on AI spending
Across Asian and American markets, a season of exuberant faith in artificial intelligence met its first serious interrogation, as chipmakers from Seoul to Taipei shed billions in value and investors paused to ask whether ambition had outpaced evidence. Simultaneously, the ancient calculus of oil and geopolitics reasserted itself — American pressure on Iranian shipping sent crude surging, rekindling the inflation anxieties that central banks had hoped were fading. The week ahead, laden with earnings reports, price data, and a new Fed chair's first congressional testimony, will ask markets to choose between two competing stories about where the economy is truly headed.
- South Korea's Kospi collapsed 5.3% to April lows, with SK Hynix losing 5% on top of a prior 15% plunge — a two-day rout that erased months of AI-fueled optimism in a matter of hours.
- The doubt spread westward like a tide: the Philadelphia Semiconductor Index fell 4.8% when US markets opened, confirming that the selloff was not a regional tremor but a global reconsideration of AI valuations.
- Oil surged 2.8% to $85.64 a barrel after Trump reinstated an Iranian shipping blockade, injecting fresh inflation risk into a market that had only recently begun to breathe easier on prices.
- Money markets now price a 50% chance of a Fed rate hike in July — a sharp pivot in expectations, with two-year Treasury yields climbing to their highest level since February 2025.
- Analysts are split: some believe AI earnings will reassert the bull case, while others see surging oil and rising yields as signals that the inflation story is far from finished.
The morning opened with a reckoning. Chipmakers across Asia sold off sharply — not a gentle retreat, but a genuine questioning of the AI-driven rally that had lifted equities to record highs all year. South Korea's Kospi fell 5.3%, erasing more than 30% of its gains since June. SK Hynix dropped another 5% after a brutal 15% tumble the day before. Taiwan Semiconductor and Kioxia also declined. The pattern was clear: investors were beginning to wonder whether the artificial intelligence boom had simply gotten ahead of reality.
The doubt did not stay in Seoul. When US markets opened, the Philadelphia Semiconductor Index fell 4.8%, and SK Hynix's American depositary receipts — only days after their July 10 debut — had already plunged 9.3% the prior session. What was unfolding was less a correction than a collective pause: after months of pouring money into AI hardware and infrastructure, traders were asking aloud whether the spending could ever justify the valuations.
Meanwhile, oil was moving in the opposite direction. Brent crude jumped 2.8% to $85.64 a barrel after President Trump reinstated a blockade of Iranian ships in the Strait of Hormuz and demanded a 20% levy on other cargo transiting the waterway. The move reignited inflation concerns that had never fully disappeared. Money markets shifted to price roughly 50% odds of a Federal Reserve rate hike in July, and two-year Treasury yields climbed to 4.28% — their highest since February 2025.
The week ahead carried unusual weight. Tuesday's consumer price index was expected to show inflation easing to 3.8% year-over-year, down from 4.2% in May. Fed Chair Kevin Warsh was set to testify before Congress for the first time. Earnings season was beginning. The market found itself suspended between two competing narratives: an AI wave that had driven stocks higher all year, now looking potentially overextended, and an inflation threat from surging oil that might force the Fed's hand sooner than expected. Analysts disagreed on which story would win — but agreed that the answer was coming soon.
The morning markets opened with a sharp reversal. Chipmakers across Asia were selling off hard—not a gentle pullback, but a genuine reckoning. South Korea's Kospi index dropped 5.3%, touching its lowest point since April, erasing more than 30% of the gains it had accumulated since June. SK Hynix, the memory chip giant, fell another 5% on top of a brutal 15% tumble the day before. Taiwan Semiconductor Manufacturing lost 1.6%. Kioxia Holdings fell 3%. The pattern was unmistakable: investors were suddenly asking whether the artificial intelligence boom that had driven equities to record highs this year had simply gotten ahead of reality.
The selloff had started in Seoul but rippled westward. When US markets opened, the Philadelphia Semiconductor Index dropped 4.8%, confirming that the doubt was spreading. SK Hynix's American depositary receipts had already plunged 9.3% on Monday—a particularly volatile swing for a stock that had only debuted on July 10. The company's shares now swung between two continents in a kind of perpetual echo, amplifying every move. What was happening was less a correction and more a collective pause: after months of pouring vast sums into AI infrastructure and hardware, traders were beginning to wonder aloud whether the spending could ever justify the valuations.
While chip stocks fell, oil was climbing. Brent crude jumped 2.8%, reaching $85.64 a barrel, driven by escalating tensions between the United States and Iran. President Trump had reinstated a blockade of Iranian ships moving through the Strait of Hormuz and was now demanding a 20% reimbursement on all other cargo transiting the waterway. The move reignited inflation concerns that had been simmering beneath the surface. Money markets began pricing in roughly 50% odds of a Federal Reserve rate hike in July—a significant shift in expectations. Fed Governor Christopher Waller had signaled on Monday that officials might need to raise rates soon if underlying inflation continued to show broad price pressures.
The week ahead loomed large. Earnings season was about to begin. The consumer price index was due on Tuesday, expected to show inflation slowing to 3.8% year-over-year from 4.2% in May. Fed Chair Kevin Warsh was scheduled to testify before Congress for the first time in his new role. Treasury two-year yields, which move closely with Fed rate expectations, had climbed to 4.28%, touching their highest level since February 2025. The market was caught between two competing narratives: the AI wave that had driven stocks higher all year, now looking potentially overextended, and the inflation threat from surging oil prices that might force the Fed's hand sooner than expected.
Analysts were divided on what would matter most. Sonu Varghese at Carson Group believed the AI story would ultimately dominate market direction in the coming weeks, especially once companies began reporting earnings. But Hebe Chen, a senior analyst at Vantage Global Prime, saw the signals differently: surging oil and rising yields were already speaking to a worsening inflation outlook. The dollar and Treasuries had steadied as traders waited for Tuesday's data, but the underlying tension was clear. The market had been running on the assumption that AI spending would justify almost any valuation. Now, with inflation creeping back into focus and the Fed potentially forced to act, that assumption was being tested.
Notable Quotes
The AI wave will drive markets over the next few weeks, especially as earnings season kicks off— Sonu Varghese, Carson Group
Surging oil prices and yields are already speaking clearly to a worsening inflation outlook— Hebe Chen, Vantage Global Prime
The Hearth Conversation Another angle on the story
Why did the chip stocks fall so sharply when the AI story has been driving markets all year?
Because the market had gotten ahead of itself. Investors poured enormous sums into AI infrastructure on the belief that the returns would eventually justify the spending. But at some point, someone asks: can they really? When that question gets asked loudly enough, the selling starts.
And the oil surge—how does that change the picture?
It brings inflation back into the conversation. Oil had been relatively quiet, but Trump's Iran blockade pushed Brent crude up 2.8% in a day. That's not huge, but it's enough to make traders think about price pressures spreading through the economy again.
So the Fed might have to raise rates?
That's what the market is pricing in now. If inflation stays sticky, the Fed can't ignore it, even if it means slowing growth. The two-year Treasury yield jumped to its highest since February 2025—that's the market betting on rate hikes.
But couldn't the AI boom still win out?
It could. That's why this week matters so much. Earnings season starts, we get inflation data, and the Fed chair testifies. If companies show that AI spending is actually generating returns, the narrative flips back. If inflation data comes in hot, it doesn't.
What about SK Hynix specifically—why did it swing so wildly?
It's a memory chip maker, so it's exposed to both the AI boom and the broader semiconductor selloff. But it also just went public with American depositary receipts on July 10. Now its shares trade around the clock between Seoul and New York, and every move in one market gets amplified in the other. It's volatile by design right now.
So what's the real story here?
The real story is that the market is trying to figure out whether it's in an AI boom or an inflation crisis. For months, it was clearly the former. Now both are true at once, and nobody knows which one matters more.