These 2 AI Power Stocks Jumped While the S&P 500 Fell
NRG Energy (NYSE:NRG) and Constellation Energy (NASDAQ:CEG) rose 6.4% and 4.9% respectively on September 4, while the S&P 500 fell 0.4%. NRG reported $1.03 billion in Q2 free cash flow and is advancing a 1.2-gigawatt gas project. Constellation raised its full-year EPS guidance to $11.50-$12.50 and signed 920 megawatts of long-term power agreements. Both companies are positioned to benefit from AI-driven data-center demand.
How this was made

The 30-second read
Why it matters
Both companies benefit from AI data‑center growth, but face execution and regulatory risks.
Market read
AI‑related power demand is a fresh catalyst for utility stocks, offering short‑term trading opportunities.
What to watch
Potential regulatory hurdles and grid permitting delays may slow project roll‑outs.
Background
The article discusses AI‑driven demand for reliable power and reports recent price moves and guidance updates for two U.S. utilities.
Ticker impact
NRG Energy rose 6.4% after reporting a 1.2‑GW power project and $1.03 B Q2 free cash flow.
Potential further upside if contracts are secured.
Guidance unchanged but strong cash flow and project rollout may attract buyers.
Constellation Energy lifted full‑year adjusted EPS guidance to $11.50‑$12.50 and added 920 MW of power agreements.
Likely to sustain the recent 4.9% gain.
Higher EPS guidance and new contracts improve earnings visibility.
Market effects
Highlights growing demand for AI‑related power generation, benefiting utilities with dispatchable capacity.
U.S. power sector may see increased investor interest amid AI data‑center expansion.
Signals broader trend of energy firms positioning for AI infrastructure growth worldwide.
Counterpoint
Execution risk and fuel price exposure could limit upside for both firms.
Key entities
- companyNRG Energy
U.S. power generator reporting project progress and cash flow.
- companyConstellation Energy
U.S. utility raising EPS guidance and signing new power contracts.




