Big move · Argentina stocks
Petróleo Brasileiro S.A. - Petrobras (PETR3) falls 5.3% to ARS 21,090.00
Its biggest one-day fall in 4 months.
- Close
- ARS 21,090.00
- On the day
- −5.3%
- Volume
- 0.5× average
- vs 52-week high
- −5.3%
Petróleo Brasileiro S.A. - Petrobras closing prices
The last 90 closes up to 20 October 2026. The live chart is on the PETR3 page.
What happened
Petróleo Brasileiro S.A. - Petrobras (PETR3) closed at ARS 21,090.00 on 20 October 2026, down 5.3% from ARS 22,260.00 the session before.
It was PETR3's biggest one-day fall in 4 months. Over 5 sessions the price is up 3.0%, and over 20 sessions it is up 27.1%.
The close is 5.3% below the highest close of the past year (ARS 22,260.00 on 19 Oct 2026) and 146.2% above the lowest (ARS 8,565.00 on 16 Oct 2025).
Trading was light: volume was 48% of its recent average.
Across the 18 BUENOSAIRES stocks we track, 12 closed higher and 5 closed lower that day, with a median change of +0.83%. PETR3's change was −5.3%.
This page reports what the price and volume data show. It does not say why the price moved.
The numbers
| Previous close | ARS 22,260.00 |
|---|---|
| Close | ARS 21,090.00 |
| Change on the day | −5.26% |
| Change over 5 sessions | +2.98% |
| Change over 20 sessions | +27.12% |
| Volume | 4,684 |
| Average volume, up to 20 sessions before | 9,686 |
| Volume against that average | 0.5 times |
| Highest close in the past year | ARS 22,260.00 (19 Oct 2026) |
| Lowest close in the past year | ARS 8,565.00 (16 Oct 2025) |
The full chart and history are on Petróleo Brasileiro S.A. - Petrobras (PETR3). More from this market: BUENOSAIRES news today.