Bar chart of November 4 share price changes. Microsoft rose 6.6% and Amazon 6.1%, while Constellation fell 6.7%, CoreWeave 9.8% and Vistra 13.8%.

Microsoft stock jumped 6.6% on Wednesday, more than four times the 1.5% gain in the S&P 500, while the power and cloud names behind the AI buildout sank.

Shares closed at $555.80, up from $520.99 on Tuesday.

Amazon, Apple and Alphabet rallied with it.

  • Microsoft +6.6%

  • Amazon +6.1%

  • Apple +5.3%

  • Alphabet +3.1%

  • S&P 500 +1.5%

The AI infrastructure trade went the other way.

  • Nvidia -3.1%

  • Constellation Energy -6.7%

  • CoreWeave -9.8%

  • Vistra -13.8%

Vistra had its worst day of the group, falling to $120.29 from $139.59.

Investors bought the companies spending on AI and sold the ones getting paid to power it.

See more in the Opening Bell charts hub.

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Phil Rosen
Phil Rosen

Phil Rosen is co-founder and CEO of Opening Bell Media and chief market strategist for Silvia Inc. (NASDAQ: SVIA). He hosts Full Signal and writes Opening Bell Daily — the markets briefing read by over 200,000 investors and published on Bloomberg Terminals — and has also published two books and won a Fulbright award for his reporting. Contact him at [email protected].

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