A CEO's comment alone had moved billions in market value
Tech-heavy markets surged across Asia: Japan's Nikkei +1%, South Korea's Kospi +3.5%, Taiwan's Taiex +2.2%, driven by chip stocks and AI-related gains. Wall Street's Monday rebound (+0.3% S&P 500) followed Friday's worst day since October; semiconductor stocks like Micron (+9.9%) and Marvell (+9.6%) led recovery.
- South Korea's Kospi surged 3.5% after losing more than 8% on Monday
- Micron Technology rebounded 9.9% after Friday's 13.3% plunge, largest S&P 500 loss that day
- Brent crude fell from nearly $98 to $93.84 per barrel as geopolitical tensions eased
- Semiconductor stocks have surged nearly 85% for the year through Thursday
Asian shares gained Tuesday led by technology stocks as Wall Street recovered from last week's losses, while oil prices fell back after Monday's surge amid Israel-Iran tensions.
The markets were catching their breath. After a brutal Friday that sent the S&P 500 down 2.6%—its worst day since October—Wall Street managed a modest recovery on Monday, gaining 0.3% to close at 7,405.73. The real story, though, was unfolding across Asia on Tuesday morning, where technology stocks were doing the heavy lifting that broader markets couldn't quite manage.
Tokyo's Nikkei 225 climbed 1% to 64,654.22, with chip equipment maker Tokyo Electron surging 7.5% and dragging other tech names higher. But the real fireworks were happening in Seoul. South Korea's Kospi jumped 3.5% to 7,743.65, a sharp reversal from Monday's loss of more than 8%. SK Hynix, which had just announced a partnership with Nvidia to build data centers, vaulted 7.7% higher. Samsung Electronics gained 3.6%. Taiwan's Taiex advanced 2.2%, buoyed by gains in chip giant TSMC and other semiconductor plays. Hong Kong and Shanghai were more subdued—the Hang Seng slipped 0.4% while the Shanghai Composite inched up 0.3%—but the pattern was unmistakable. Where there were chips, there were gains.
Back on Wall Street, the recovery had a particular flavor. Semiconductor stocks that had cratered on Friday were bouncing back hard. Micron Technology, which had suffered the S&P 500's largest single-day loss on Friday with a 13.3% plunge, rebounded 9.9% on Monday. The stock has more than tripled so far in 2026. Marvell Technology climbed 9.6% in its first day of trading after being added to the S&P 500 index—a validation of sorts. Marvell's stock has also more than tripled this year, including a stunning 32.5% surge in a single day last week, its best day since the company began trading in 2000. That spike came after Nvidia CEO Jensen Huang suggested at a Taiwan conference that Marvell could become "the next trillion-dollar company." The comment alone had moved billions of dollars in market value. To skeptics watching the semiconductor sector surge nearly 85% for the year through Thursday, it was a sign that AI stocks had detached from reality.
The other major story was oil's retreat from the brink. Prices had spiked on Monday as fighting between Israel and Iran threatened to pull the region into full-scale conflict. Brent crude, the international benchmark, had briefly topped $98 a barrel overnight. By Tuesday morning, it had fallen back 41 cents to $93.84. U.S. benchmark crude shed 47 cents to $90.83. The pullback mattered because sustained high oil prices had already begun pushing inflation higher, which rippled through household budgets and into the bond market, where yields had climbed. Those elevated yields posed a threat to economic growth and to stock valuations across the board—a pressure that could undercut the very rally that had just gotten underway.
Currency markets moved modestly. The dollar strengthened to 160.20 Japanese yen from 160.17, while the euro climbed to $1.1540 from $1.1532. The moves were small, but they reflected a market still finding its footing after a week of sharp swings. The question hanging over everything was whether the tech rally would hold, whether oil would stay calm, and whether the bond market's pressure would ease or tighten further.
Notable Quotes
Nvidia CEO Jensen Huang suggested at a Taiwan conference that Marvell could become the next trillion-dollar company— Jensen Huang, Nvidia CEO
The Hearth Conversation Another angle on the story
Why did Asian tech stocks lead the way here instead of following Wall Street's lead?
Because the sell-off on Friday hit semiconductor stocks especially hard—they'd gotten expensive, and people panicked. When Wall Street steadied on Monday, it gave Asia permission to buy those same chips back. They're the engine of the AI trade, so when they move, everything else follows.
The Marvell story is wild. A CEO's comment adds billions in value in one day?
It does when the whole sector is running on belief rather than earnings. Huang basically anointed Marvell as the next mega-cap company, and the market priced that in instantly. It's a sign of how thin the margin is between confidence and excess right now.
What about the oil situation? Does the retreat mean the Iran threat is over?
Not necessarily. Prices fell because the immediate fighting didn't escalate into full-scale war. But the underlying tension is still there. If it flares again, oil goes right back up, and that's when the real damage happens—inflation, higher bond yields, slower growth.
So the rally could be fragile?
Very. Tech stocks are bouncing on relief, but they're still expensive. Oil is lower but volatile. And bond yields are still elevated, which makes holding stocks less attractive than it was. It's a recovery, not a resolution.