U.S. stock indices closed higher on Monday after Anthropic filed for an IPO, lifting investor optimism about AI, while markets await quarterly results from major tech firms and the Federal Reserve's October policy decision. The S&P 500 rose 0.7%, the Nasdaq 100 gained 1.1%, the Dow Jones Industrial Average added 0.3%, and the Russell 2000 rose 0.4%. The filing showed more than 1,900 customers paid Anthropic at least $1 million over the past year, nearly double the April tally; according to The Wall Street Journal, the company is targeting a November listing under the symbol ANT, possibly raising $100 billion or more at a valuation of $1.5 trillion to $2 trillion. Brent fell 0.8% to $115.81 a barrel and WTI slid 1.7% to $101.57. Per Bloomberg, Microsoft is extending voluntary buyout offers to about 60,000 employees, and Instacart (CART) shares jumped 8% on reports that DoorDash is in talks to acquire it at a $17 billion valuation.
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Related tickers and likely impact
QQQ
▲ Likely positiveInvesco QQQ Trust
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | ETF |
| Close on 10/26/2026 | 712.11 |
| Change that session | +1.09% |
SPY
▲ Likely positiveSPDR S&P 500 ETF
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | ETF |
| Close on 10/26/2026 | 765.22 |
| Change that session | +0.69% |
AAPL
▲ Likely positiveApple Inc.
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Technology Hardware, Storage & Peripherals |
| Market cap | $5.1T |
| Close on 10/26/2026 | 343.98 |
| Change that session | -1.08% |
MSFT
▲ Likely positiveMicrosoft
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Systems Software |
| Market cap | $3.9T |
| Close on 10/26/2026 | 532.75 |
| Change that session | +1.57% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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