Pre-market price movements and significant market activity for Warner Bros. Discovery, Inc. Series A Common Stock ($WBD). Each move is flagged by Z-score statistical significance — showing when $WBD moved beyond its typical daily range. 4 significant moves detected in the last 30 days.
Current Market State
What May Be Driving WBD?
WBD jumped 7.66% on an extreme 11.90 z-score as Paramount settlement talks accelerated, nearing a $111B merger.
Warner Bros. Discovery, Inc. Series A Common Stock operates in the Technology sector, specifically Cable & Other Pay Television Services. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Sep 21, 2026 | Pre-market | $29.78 | +7.12% | 11.09 | 26.1× |
| Sep 21, 2026 | Regular | $30.87 | +11.04% | 16.79 | 13.4× |
| Sep 18, 2026 | After-hours | $30.02 | +7.99% | 12.82 | 2.5× |
| Sep 18, 2026 | Regular | $27.80 | -1.58% | -2.66 | 1.3× |
About WBD Premarket Movers
This page tracks unusual market activity for Warner Bros. Discovery, Inc. Series A Common Stock (WBD) 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 WBD'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.