Pre-market price movements and significant market activity for Cisco Systems, Inc. Common Stock (DE) ($CSCO). Each move is flagged by Z-score statistical significance — showing when $CSCO moved beyond its typical daily range. 3 significant moves detected in the last 30 days.
Current Market State
What May Be Driving CSCO?
CSCO fell 3.92% to -2.59 standard deviations on 1.7x RVOL, driven by technical selling with no company-specific news.
Cisco Systems, Inc. Common Stock (DE) operates in the Technology sector, specifically Computer Communications Equipment. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Sep 22, 2026 | Regular | $105.79 | -5.09% | -3.37 | 1.4× |
| Sep 22, 2026 | After-hours | $106.12 | -4.79% | -3.18 | 2.1× |
| Sep 11, 2026 | After-hours | $112.00 | +4.24% | 2.13 | 0.7× |
About CSCO Premarket Movers
This page tracks unusual market activity for Cisco Systems, Inc. Common Stock (DE) (CSCO) 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 CSCO'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.