Wall Street’s worst day since June: AI spending fears wipe out more than $1 trillion in tech value

Wall Street had its worst day in almost five months on Friday, 30 October 2026, as a deepening sell-off in technology shares swept through the United States stock market. The Nasdaq Composite fell 2.9 percent, the S&P 500 dropped 1.8 percent, and the Dow Jones Industrial Average lost 572 points, as investors asked a question they had been putting off for months: when will the hundreds of billions of dollars being poured into artificial intelligence actually start paying off?

The trigger was a run of company results showing the world’s biggest technology firms burning through cash at a remarkable pace. Intel plunged almost 29 percent for its worst single-day fall since 1974, after warning it would burn cash this year. Amazon fell after reporting that it had burned through $42.4 billion of cash over the previous 12 months. A day earlier, Google’s parent company, Alphabet, had suffered its worst day on record, losing more than 12 percent and wiping out about $500 billion in market value.

At a glance

What happened: On Friday, 30 October 2026, the S&P 500 fell 1.8 percent, its worst day since June, the Nasdaq Composite fell 2.9 percent, and the Dow Jones Industrial Average fell 1.1 percent. Intel plunged 28.6 percent, its worst drop since 1974, and Alphabet had lost more than 12 percent the day before, its worst day on record.

Why it matters: The sell-off was driven by doubts about the returns on the huge sums Big Tech is spending on artificial intelligence. Amazon, Google, Microsoft and Meta spent more than $200 billion in the third quarter of 2026 alone, and investors are no longer sure when that money will come back as profit.

What happens next: Traders will watch the next round of company results, any sign that Big Tech is slowing its spending, and the United States midterm elections on Tuesday, 3 November, with the market already on edge.

The numbers: Wall Street’s worst day since June

The closing figures showed the scale of the fall. The S&P 500 fell 140.32 points, or 1.82 percent, to 7,580.07, its steepest decline since June. The Nasdaq Composite lost 747.73 points, or 2.86 percent, to 25,437. The Dow Jones Industrial Average fell 572.25 points, or 1.09 percent, to 51,770.31. The Russell 2000, which tracks smaller American companies, fell 47.37 points, or 1.66 percent, to 2,811.84.

It was the S&P 500’s third straight losing week. For the week, all three major indexes posted declines, while the Russell 2000 rose 1.3 percent.

The technology-heavy Nasdaq 100 fell about 3.5 percent on Friday, and Reuters reported that the index was on track to lose more than $1 trillion in market value in a single session. The Nasdaq Composite has now fallen about 7.8 percent from its most recent closing high. That is a sharp pullback, but it is not yet a correction, the term traders use for a fall of 10 percent or more from a recent high.

Intel’s worst day in half a century

Intel was the biggest casualty of the day. Its shares plunged 28.6 percent, the worst single-day drop for the company since 1974. The chipmaker gave a forecast for profit in the final three months of 2026 that fell short of what analysts had expected, and it warned that it would burn cash this year.

The company blamed a weak market for personal computers, problems in its factories, and heavy spending to expand production. The fall came even though Intel had reported a stronger profit for the latest quarter than analysts expected. Investors were not judging the past three months. They were judging what comes next.

Intel was not alone among chipmakers. Nvidia, the company whose chips power most artificial intelligence systems, fell 4.2 percent. That fall was the heaviest single force pulling the S&P 500 downward on Friday, outweighing even Intel, because Nvidia is so large. AMD fell sharply, SanDisk dropped about 13 percent, Marvell lost around 10 percent and Micron fell 5.3 percent.

Amazon and Alphabet: the cash-burn question

Amazon’s results added to the worry. Its shares fell 1.4 percent on Friday, after having fallen more than 6 percent in trading before the market opened. The company reported a weaker profit for the summer than analysts had expected, but what troubled investors more was the cash. Amazon burned through $42.4 billion of cash over the previous 12 months, measured by a figure called free cash flow, which is the cash a company has left after paying for its day-to-day business and its investments. It spent $94.8 billion on property and equipment, mostly on artificial intelligence.

Amazon also told investors that its spending would keep rising. It kept its 2026 capital spending forecast at about $220 billion, and its chief executive, Andy Jassy, said the company expects to spend meaningfully more in 2027.

Alphabet set the tone a day earlier. On Thursday, 29 October, its shares fell more than 12 percent, the biggest one-day drop since the company began trading in 2004, wiping out roughly $500 billion in value. Revenue and adjusted earnings missed analysts’ expectations, growth in search advertising came in at 12 percent against expectations of about 15 percent, and free cash flow was negative $9.07 billion, far below the roughly $2.7 billion analysts had expected. Alphabet kept its 2026 capital spending forecast at $195 billion to $205 billion and said spending would rise significantly in 2027. Its shares slipped further on Friday.

Meta also reported that it had burned cash in the September quarter. Microsoft was the exception among the giants, delivering a strong cash-flow result even as it raised $25 billion through a debt sale. Together, Amazon, Google, Microsoft and Meta spent more than $200 billion in the third quarter alone, according to Reuters.

Why investors suddenly doubted the AI boom

The worry is simple to explain, even if the numbers are enormous. Companies are spending hundreds of billions of dollars building data centres, buying chips and laying the infrastructure for artificial intelligence. Investors want to know when that spending turns into revenue and profit. The latest results suggested the answer is: not yet, and not soon.

“We’re moving out of the hopes and dreams phase of the AI trade and into the ‘show me’ phase,” said Joe Tigay, a portfolio manager at Equity Armor Investments, in a note to investors quoted by the Associated Press.

Ipek Ozkardeskaya, a senior analyst at Swissquote Bank, put it another way in comments reported by Reuters: “If we summarize the Big Tech results: cloud growth was strong, but the companies are spending huge amounts to deliver that growth. Together, Amazon, Google, Microsoft and Meta spent more than $200bn in the third quarter alone. Moving forward, the risk is that higher financing costs will absorb more of the cash generated, leaving less to fund expansion and repay debt.”

That last point matters because several big technology companies have been borrowing money to fund their AI spending. If interest rates stay high, or rise further, that borrowing gets more expensive. Traders now expect the United States Federal Reserve to raise interest rates by more than 50 basis points by the middle of 2027, according to Reuters, even though the central bank held rates steady earlier in the week.

Not everything fell: energy, food and safety

Friday was not a day when everything fell. Outside technology, many shares were resilient, and nearly as many stocks in the S&P 500 rose as fell.

The oil giants were the clearest winners. ExxonMobil climbed 2.2 percent and Chevron added 1.8 percent after both reported stronger profit for the summer than analysts had expected. Their gains came on a day when the price of Brent crude oil rose 2.4 percent to $113.43 a barrel.

Food and household-goods companies also did well. Mondelez International, the company behind Oreo cookies and Ritz crackers, rose 3.9 percent after reporting stronger-than-expected growth, and Colgate-Palmolive climbed 2.3 percent.

Investors also moved money into safer assets. The yield on the 10-year United States Treasury fell to 4.93 percent from 4.98 percent late on Thursday, and from more than 5.30 percent earlier in the month. When bond yields fall, it usually means investors are buying government bonds in search of something safer to own. Financial stocks, however, came under pressure: Goldman Sachs fell about 4 percent and Jefferies lost about 6 percent.

The sell-off went global

The worry about artificial intelligence was not limited to the United States. In Asia, South Korea’s Kospi index dropped 3.5 percent as the AI worries hit its technology-heavy market, while the Hang Seng in Hong Kong climbed 1.5 percent. Japan’s Nikkei 225 fell 2.1 percent after the Bank of Japan decided to keep interest rates steady. Markets in Europe were mixed after sharper swings in Asia.

The nervousness also spread to other kinds of assets. Silver prices fell about 6 percent, while gold lost about 3.5 percent. Bitcoin fell about 3 percent, dropping below $77,000, after having traded above $86,000 earlier in the month.

Part of the pressure on crypto came from a separate story: a hack on Binance, the world’s biggest cryptocurrency exchange. The Associated Press reported that a United States-based blockchain intelligence firm said a North Korean unit was likely behind the attack, which affected more than $6 billion worth of crypto at Binance. Coinbase Global fell 10.6 percent even though it reported stronger results for the latest quarter than analysts expected.

What to watch next

The first question is whether the big technology companies change their plans. So far, Amazon and Alphabet have both said they will spend more, not less, in 2027. If the next round of results shows spending still rising while cash flow stays weak, the selling could continue. If a company shows clear evidence that its AI investments are producing real revenue, the mood could turn quickly.

The second question is interest rates. Higher borrowing costs make it harder to justify huge spending on data centres, and traders are already pricing in further rate rises in 2027.

The third factor is politics. The market has become increasingly shaky as the United States midterm elections approach on Tuesday, 3 November, and President Donald Trump has historically used the stock market’s performance as a measure of his own success.

There is also important context that Friday’s fall should not hide. Since the beginning of 2026, the major indexes are still well up: the S&P 500 is up 10.7 percent, the Dow Jones is up 7.7 percent, the Nasdaq Composite is up 9.4 percent and the Russell 2000 is up 13.3 percent. The market remains only about 3 percent below its all-time high. Friday was a bad day, and October was a bad month for technology. It was not a crash.

Frequently asked questions

What happened on Wall Street on Friday, 30 October 2026?

The S&P 500 fell 1.8 percent, its worst day since June, the Nasdaq Composite fell 2.9 percent and the Dow Jones Industrial Average fell 1.1 percent, driven by a sell-off in technology shares after disappointing results from Intel, Amazon and Alphabet.

Why did technology stocks fall so sharply?

Investors became worried about the returns on the huge sums Big Tech is spending on artificial intelligence. Amazon, Google, Microsoft and Meta spent more than $200 billion in the third quarter of 2026 alone. Amazon reported negative free cash flow of $42.4 billion over 12 months, Intel warned it would burn cash this year, and Alphabet’s cash flow came in far below expectations.

How much did Intel’s shares fall, and why?

Intel’s shares plunged 28.6 percent on Friday, its worst single-day drop since 1974. The company gave a profit forecast for the final three months of 2026 that fell short of analysts’ expectations, and warned it would burn cash this year because of a weak personal-computer market, manufacturing problems and heavy spending to expand production.

How much value did the sell-off wipe out?

Reuters reported that the Nasdaq 100 index was on track to lose more than $1 trillion in market value on Friday. Alphabet alone lost about $500 billion in value on Thursday, 29 October, when its shares fell more than 12 percent in its worst day on record.

Did the whole market fall, or only technology?

Mainly technology. Nearly as many stocks in the S&P 500 rose as fell on Friday. ExxonMobil rose 2.2 percent, Chevron added 1.8 percent, Mondelez rose 3.9 percent and Colgate-Palmolive climbed 2.3 percent. Investors also bought government bonds, pushing the yield on the 10-year Treasury down to 4.93 percent.

Is this the start of a bear market?

Not on the evidence so far. A bear market is usually defined as a fall of 20 percent from a recent high. The Nasdaq Composite has fallen about 7.8 percent from its most recent closing high, and the S&P 500 is only about 3 percent below its all-time high. All the main indexes are still up for the year. What Friday showed is that investors are now demanding proof that AI spending pays off, rather than rewarding the spending itself.

Conclusion

Friday, 30 October 2026 was the day Wall Street stopped giving the artificial intelligence boom the benefit of the doubt. The numbers were stark: the S&P 500’s worst day since June, the Nasdaq’s worst day since June, Intel’s worst day since 1974, and Alphabet’s worst day ever, all in the space of two sessions. More than $1 trillion in technology value disappeared.

But the story is not simply that shares fell. It is that the reason they fell was the very thing that had driven them up: spending. For two years, the market cheered every billion dollars Big Tech poured into data centres and chips. On Friday, investors looked at the same spending and saw cash draining away, with no clear date for when it comes back as profit. Amazon’s $42.4 billion of negative free cash flow, Alphabet’s $9 billion shortfall and Intel’s cash-burn warning turned a familiar story into a new question.

The market has not collapsed. The S&P 500 is up more than 10 percent since January, and many shares outside technology actually rose on Friday. What has changed is the test companies must now pass. As one fund manager put it, the AI trade has moved from the “hopes and dreams” phase into the “show me” phase. The companies that can show real returns from their AI spending will be rewarded. The ones that cannot will find that Friday’s sell-off was only the beginning.

This article is for general information and education only. It is not legal or financial advice.

Sources

• https://www.dtnpf.com/agriculture/web/ag/news/world-policy/article/2026/10/30/wall-street-drops-worst-day-since (Associated Press, 30 October 2026)
• https://www.kitco.com/news/off-the-wire/2026-10-30/nasdaq-futures-sink-amazon-intel-intensify-ai-spending-fears (Reuters, 30 October 2026)
• https://www.kitco.com/news/off-the-wire/2026-10-30/tech-giants-spending-spooks-investors-and-drives-bonds-rally (Reuters, 30 October 2026)
• https://stockbiz.vn/en/news/wall-street-tumbles-as-technology-stocks-come-under-heavy-selling-pressure/42566552 (Stockbiz, 31 October 2026)
• https://www.mibolsillo.co/wall-street-suffers-its-worst-day-since-june-as-tech-stocks-plunge-and-ai-fears-spread-t202610300003.html (Mi Bolsillo, 30 October 2026)
• https://clashreport.com/world/articles/tech-stocks-face-1-trillion-wipeout-as-ai-spending-fears-hammer-wall-street-2t8jz05dyjy (Clash Report, 30 October 2026)