Pre-market price movements and significant market activity for Simon Property Group, Inc. ($SPG). Each move is flagged by Z-score statistical significance — showing when $SPG moved beyond its typical daily range. 4 significant moves detected in the last 30 days.
Current Market State
What May Be Driving SPG?
REITs decline as surging long-term interest rates hit the real estate sector hard.
Simon Property Group, Inc. operates in the Real Estate sector, specifically Real Estate Investment Trusts. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Oct 7, 2026 | Regular | $198.01 | -1.85% | -3.39 | 0.5× |
| Oct 7, 2026 | After-hours | $197.99 | -1.86% | -3.41 | 1.0× |
| Sep 10, 2026 | Pre-market | $204.53 | -3.01% | -3.37 | — |
| Sep 9, 2026 | After-hours | $205.50 | -3.01% | -2.01 | — |
About SPG Premarket Movers
This page tracks unusual market activity for Simon Property Group, Inc. (SPG) 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 SPG'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.