On Tuesday, November 3, 2026, midterm elections will determine whether Republicans keep control of Congress or Democrats gain enough seats to check President Donald Trump's agenda. With 49% of the S&P 500 tied to AI, the outcome could have an outsized effect on the stock market. According to Capital Group, the S&P 500 has gained an average of 15.1% excluding dividends in the 12 months after midterm elections since 1950, and markets tend to favor the stability that divided government brings. Because data center builders rely heavily on borrowing, bond yields shape AI spending: larger players like Meta and Amazon might pull back, while smaller, indebted firms such as CoreWeave and TeraWulf could struggle to get financing. The author notes Democrats have been more opposed to data center construction, so a Democratic sweep could bring more regulatory difficulty for AI, and argues that Treasury yields may reveal more than the S&P 500's moves.
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midterm electionsDemocratic PartyS&P 500bondsdata centers
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Related tickers and likely impact
SPY
• NeutralSPDR S&P 500 ETF
Relevance: low
| Market | US stocks |
|---|---|
| Sector | ETF |
| Close on 10/30/2026 | 755.71 |
| Change that session | -1.77% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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