Stocks Drop as AI Winners Sell Off and Oil Prices Jump

What Happened on Friday

On Friday, the stocks that had been big winners because of the artificial intelligence (AI) boom — basically, the companies making smart computer tech — fell even more in price. This pushed stock markets all around the world down. At the same time, the price of oil kept going up because of a war with Iran.

Important Point: The AI stock sell-off (when lots of people sell their shares and prices drop) got worse, and oil prices kept climbing because of the war.

How Big U.S. Stock Indexes Moved

Here’s how the three big U.S. stock measures did:

• The S&P 500 fell 1%. It finished with its first losing week in the last three, and only its third losing week since the end of March. Just days before, it had been within 0.5% of its all-time high (the highest value ever).
• The Dow Jones Industrial Average dropped 406 points, or 0.8%.
• The Nasdaq composite (full of tech stocks) sank 1.4%.

All told:

• S&P 500: fell 76.08 points to 7,457.69
• Dow: dropped 406.55 to 52,146.42
• Nasdaq: sank 361.70 to 25,520.24

Why AI Stocks Were Shaky

Chip (computer chip) stocks and other AI favorites were again the center of the wobbly trading. They’ve been under pressure for weeks because people worry:

• Their prices went too high.
• The huge need for computer memory and processors may not last if AI ends up making less profit and getting less done than promised.

Some examples:

• Nvidia dropped 2.2% and was the heaviest weight pulling the S&P 500 down. Its recent losses briefly made it lose its No. 1 spot as the most valuable company on Wall Street Friday, but it finished back above Apple.
• Applied Materials sank 5.6%, trimming its yearly gain to 106%.
• Micron Technology swung between a 5.8% loss and a 3.2% gain before slipping 0.5%.

Tech Sell-Off Around the World

Earlier in the morning, tech stocks fell worldwide:

• Taipei index: tumbled 6.5%
• Tokyo index: fell 4%
• Shanghai index: fell 3%
• Taiwan Semiconductor Manufacturing Co.: dropped 7.3%

South Korea’s market was closed for a holiday (a little break, but maybe temporary). It’s been in the middle of AI swings because two big tech companies — Samsung Electronics and SK Hynix — dominate it. This past week alone, Seoul’s Kospi index had one day up 6.2% and two days down 6.4% and 8.9%.

A New Chinese AI Model Shook Things Up

News of a powerful Chinese AI model from startup Moonshot, called Kimi K3, further shook markets. Similar to when China’s DeepSeek announced its AI model in early 2025, a low-cost rival to big Western AI models like ChatGPT and OpenAI could hurt demand for computer chips and parts.

European stock indexes, which focus less on AI and tech, had milder moves.

Other Stocks That Dropped After Earnings

Companies are expected to show big growth for the spring to justify their already-high stock prices. Several dropped after their latest earnings reports (updates on profit and sales):

1. Netflix sank 7.3% — its revenue (money from sales) missed expectations, even though profit was bigger than expected. Its forecast for summer revenue and profit also came in low.
2. Intuitive Surgical (makes robotic surgical systems) dropped 14.1% despite beating expectations. Analysts worried about slower procedure growth because enhanced tax credits that lowered health insurance costs expired.
3. Elon Musk’s SpaceX fell 5.4% to its lowest since its stock began trading on Nasdaq just over a month ago. It got caught in AI stock swings and also aborted a test flight of its mega Starship rocket Thursday within about a second of blastoff.

Oil Prices and the War with Iran

More oil price climbs also pressured the stock market.

• Brent crude (international oil standard) jumped 4.6% to $88.10 a barrel, up from ~$76 a week ago.
• The U.S. expanded its airstrike campaign against Iran early Friday, hitting bridges and a port tower. This raised worries oil tankers may not use the Strait of Hormuz (a narrow waterway) to carry crude from the Persian Gulf to the world.

High oil prices pushed Treasury yields (the interest the government pays on loans) up, which can slow the economy and hurt stock prices. Higher yields already sent the average 30-year mortgage rate to its highest in nearly a year. But longer-term yields eased Friday: the 10-year Treasury yield fell to 4.55% from 4.57%.

A Bit of Good News

A report said U.S. consumer sentiment (how people feel about the economy) improved more than expected, and inflation expectations eased. This matters for the Federal Reserve (the U.S. central bank), which may hike interest rates to control inflation. If inflation expectations stay calm, it could prevent a bad cycle where people rush to act before prices rise, making inflation worse.

Summary

On Friday, AI-linked stocks sold off harder, dragging global markets down, while oil jumped on Iran war fears. The S&P 500, Dow, and Nasdaq all fell. Chip giants like Nvidia dropped, a new Chinese AI model added fear, and names like Netflix and SpaceX slipped after news. Oil near $88 and war risks pressured stocks, though consumer mood and inflation hopes gave slight relief.

FAQ

Q: What is a “sell-off”?
A: It’s when many investors sell their stocks at once, causing prices to drop quickly.

Q: Why does a war with Iran affect oil prices?
A: Because the Strait of Hormuz, near Iran, is a key route for oil tankers; fighting raises fear that oil can’t move freely, so prices rise.

Q: What is the S&P 500?
A: It’s a list of 500 big U.S. companies; many people use it to see how the overall stock market is doing.

Q: How can higher oil prices hurt stocks?
A: They can push interest rates up, slow the economy, and make borrowing (like mortgages) costlier, which can lower stock prices.