Pre-market price movements and significant market activity for PETROLEO BRASILEIRO S.A.-PETROBRAS ADS (REP 1 COMMON SHARE) ($PBR). Each move is flagged by Z-score statistical significance — showing when $PBR moved beyond its typical daily range. 3 significant moves detected in the last 30 days.
Current Market State
What May Be Driving PBR?
U.S. shares of Brazilian companies rallied after the first round election result featuring Flavio Bolsonaro.
PETROLEO BRASILEIRO S.A.-PETROBRAS ADS (REP 1 COMMON SHARE) operates in the Energy sector. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Oct 5, 2026 | Pre-market | $23.76 | +9.75% | 4.82 | 12.8× |
| Oct 5, 2026 | Regular | $23.85 | +10.16% | 5.03 | 6.2× |
| Sep 16, 2026 | Regular | $20.89 | -4.04% | -2.10 | 0.8× |
About PBR Premarket Movers
This page tracks unusual market activity for PETROLEO BRASILEIRO S.A.-PETROBRAS ADS (REP 1 COMMON SHARE) (PBR) 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 PBR'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.