Pre-market price movements and significant market activity for Constellation Energy Corporation Common Stock ($CEG). Each move is flagged by Z-score statistical significance — showing when $CEG moved beyond its typical daily range. 6 significant moves detected in the last 30 days.
Current Market State
What May Be Driving CEG?
Google is nearing a $1B+ nuclear power deal with Constellation Energy.
Constellation Energy Corporation Common Stock operates in the Utilities sector, specifically Electric Services. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Oct 6, 2026 | Pre-market | $288.57 | +7.83% | 3.24 | 15.2× |
| Oct 6, 2026 | Regular | $299.68 | +11.98% | 4.76 | 3.9× |
| Oct 5, 2026 | Regular | $269.79 | +4.78% | 2.40 | 0.7× |
| Oct 5, 2026 | After-hours | $268.95 | +4.45% | 2.26 | 1.2× |
| Sep 14, 2026 | Regular | $264.99 | -6.94% | -3.75 | 1.1× |
| Sep 14, 2026 | After-hours | $265.43 | -6.78% | -3.67 | 1.5× |
About CEG Premarket Movers
This page tracks unusual market activity for Constellation Energy Corporation Common Stock (CEG) across all trading sessions — pre-market (4:00 AM–9:30 AM ET), regular hours (9:30 AM–4:00 PM ET), and after-hours (4:00 PM–8:00 PM ET). A move is flagged as "unusual" when its Z-score reaches 2 or higher, meaning the price change is statistically significant relative to CEG's recent daily volatility.
Z-score is calculated by comparing each move to the 20-day average return and standard deviation. A Z-score of 2.0 means the move is 2 standard deviations beyond the average — occurring in roughly the top 5% of daily moves. Relative volume (RVOL) compares current volume to the 20-day average volume at the same time of day, helping distinguish genuine institutional activity from noise.