Wall Street close: Nasdaq falls 2.8% as AI spending fears hit tech

What happened. On Friday 30 October, US stocks fell at the close. The Nasdaq Composite lost 2.8%, the S&P 500 about 1.8% and the Dow Jones 1.09%: it dropped 572.25 points to 51,770.31. During the session the Nasdaq was down as much as 3.3%, but it ended the day down 2.8%. For the Nasdaq it was the worst day since 5 June.

What pulled the market down. It was the second day of selling. On Thursday Alphabet, Google's owner, fell 12% and lost more than $500bn in market value: the company said its AI answers in search were hurting search ad revenue. On Friday Alphabet slid another 1.4%. Intel lost 28%, or more than $130bn in value, after a weak fourth-quarter forecast and a warning about slow PC demand. Amazon closed down 1.4%, Reddit down 29% and Roblox down 18%.

Why AI spending worries investors. According to the BBC, Meta, Alphabet, Oracle, Amazon and Microsoft together plan to spend about $800bn in 2026. Alphabet expects to spend up to $205bn and Amazon has committed $220bn. By Yahoo Finance's calculation, Amazon's free cash flow over the 12 months to September was a record outflow of more than $42bn. Kathleen Brookes of XTB says investors now want payback.

The month in numbers. According to Yahoo Finance, in October the Dow rose 1.5%, the S&P 500 fell 1.2% and the Nasdaq fell more than 5%. That is the Nasdaq's worst month since March 2025. Only technology and communication services fell in October, so it looks more like a sharp rotation than a sell-off of the whole market. Oil kept rising: Brent climbed to about $112 a barrel. Two Fed officials said on Friday that rates need to go higher, which strengthened expectations of a December hike.

Keep it in perspective. Even after the drop, the Nasdaq is up 7.8% over the past year. Keith Lerner of Truist sees the fall as possibly a reset, but allows for roughly 2-8% more downside in tech. That is his opinion, not a fact. Brookes of XTB notes that November is typically a strong month for stocks, but says that if AI stocks keep struggling, the AI trade may be past its peak.

What we don't know. Whether the sell-off continues next week. What the Fed will decide in December. How markets will react to the US elections and news from the Middle East.

Hechos confirmados

• On 30 October 2026 the Nasdaq Composite closed down 2.8%, its worst day since 5 June.^[1][2]
• The Dow Jones closed that day at 51,770.31, down 572.25 points, or 1.09%; the S&P 500 fell 1.82%.^[1]
• During the session the Nasdaq was down 3.3%.^[1]
• In October the Dow rose 1.5%, the S&P 500 fell 1.2% and the Nasdaq lost more than 5%: the Nasdaq's worst month since March 2025.^[1][2]
• Intel shares fell 28%, losing more than $130bn in value; finance chief David Zinsner said the PC slowdown should last at least through the first half of next year.^[2]
• Alphabet fell 12% on Thursday, losing more than $500bn in value, and another 1.4% on Friday.^[2]
• Amazon closed down 1.4%, Reddit down 29% and Roblox down 18%.^[2]
• Meta, Alphabet, Oracle, Amazon and Microsoft plan to spend about $800bn in 2026; Alphabet expects up to $205bn and Amazon has committed $220bn.^[2]
• Amazon's free cash flow over the 12 months to September was an outflow of more than $42bn, almost double the previous record of about $23bn.^[1]
• The Nasdaq is up 7.8% over the past year.^[2]
• Only technology and communication services fell in October.^[1]
• Truist's Keith Lerner sees potential downside of roughly 2-8% for tech from current levels.^[1]
• Brent crude rose to about $112 a barrel and WTI to $104.^[1]
• Expectations of a Fed rate hike in December firmed after September inflation data; two Fed officials said on Friday that rates need to rise.^[1]
• US midterm elections are due next week.^[1]
• XTB's Kathleen Brookes noted that November is typically a strong month for stocks.^[2]

Implicaciones

• ConfirmadoInvestors have become stricter about the payoff from AI spending: weak earnings triggered the week's sharpest falls.
• Nuestra lecturaIf tech weakness continues, it could also hit index funds that hold many of these companies.
• Nuestra lecturaHigher oil and expected Fed hikes could keep pressuring markets, but the link to the stock fall should be checked against new data.

Todavía no se sabe

• Whether the tech sell-off continues next week.
• What the Fed will decide in December.
• How markets will react to the US elections and Middle East news.

A quién afecta

United States, Global. People who hold stocks or US index funds, and anyone following the AI bubble debate

Fuentes

1. Yahoo Finance: Stock market today: Nasdaq, Dow, S&P 500 clobbered as October closes with brutal sell-off 30 de octubre de 2026 · medios
2. BBC: US tech stocks see sharp falls as AI spending nears $1tn 30 de octubre de 2026 · medios