Unusual price movements and significant market activity for MARATHON PETROLEUM CORPORATION (MPC). Each move is flagged by Z-score statistical significance — showing when MPC moved beyond its typical daily range. 3 significant moves detected in the last 30 days.
Current Market State
What May Be Driving MPC?
No specific catalyst has been identified in the available market data for MARATHON PETROLEUM CORPORATION (MPC). The moves shown below are flagged based on statistical significance (Z-score ≥ 2), meaning MPC moved beyond its typical daily range. A catalyst may exist — such as earnings, analyst action, sector momentum, or news — but has not yet been tagged to this ticker.
MARATHON PETROLEUM CORPORATION operates in the Energy sector, specifically Petroleum Refining. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Aug 5, 2026 | Regular | $301.23 | -3.64% | -2.43 | — |
| Aug 5, 2026 | After-hours | $298.50 | -4.51% | -3.01 | — |
| Aug 3, 2026 | Regular | $306.50 | -3.15% | -2.10 | — |
About MPC Market Moves
This page tracks unusual market activity for MARATHON PETROLEUM CORPORATION (MPC) 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 MPC'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.