Pre-market price movements and significant market activity for Walmart Inc. Common Stock ($WMT). Each move is flagged by Z-score statistical significance — showing when $WMT moved beyond its typical daily range. 4 significant moves detected in the last 30 days.
Current Market State
What May Be Driving WMT?
Extreme statistical drop of -2.65% with a Z-score of -2.57 amid retail competition and Meta partnership news.
Walmart Inc. Common Stock operates in the Cons Defensive sector, specifically Discount Stores. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Sep 24, 2026 | Regular | $107.88 | -2.40% | -2.35 | 0.8× |
| Sep 24, 2026 | After-hours | $107.52 | -2.72% | -2.64 | 1.1× |
| Sep 22, 2026 | Regular | $110.05 | +2.42% | 2.12 | 0.5× |
| Sep 22, 2026 | After-hours | $110.02 | +2.41% | 2.10 | 0.8× |
About WMT Premarket Movers
This page tracks unusual market activity for Walmart Inc. Common Stock (WMT) 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 WMT'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.