B3 · S1OU34 · stock
Southwest Airlines Co. (S1OU34) stock price history
Every B3 trading session of Southwest Airlines Co. from Feb 27, 2020 to Sep 25, 2026: 1,640 daily bars, adjusted for splits and dividends, with minute bars from Sep 25, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
S1OU34 adjusted close, 2020 to 2026
- R$345.13
- All time high, 2021
- R$299.01
- 52 week high, R$162.09 low
- 1,640
- Daily sessions since 2020
Last updated Sep 25, 2026, the last stored session. Refreshes after each trading day. Full 2020 to 2026 series and minute bars.
S1OU34 key facts
- Southwest Airlines Co. (S1OU34) closed at R$216.04 on Sep 25, 2026 on B3.
- S1OU34's all time high close is R$345.13, set on Apr 14, 2021; its all time low close is R$106.64 on Oct 31, 2023.
- S1OU34's 52 week range is R$162.09 to R$299.01.
- S1OU34 returned +32.7% over the year to Sep 25, 2026 and -18.5% over five years.
- Since Feb 27, 2020 S1OU34 returned +8%, +1.1% a year compounded.
- S1OU34's deepest drawdown was -69.1% from Apr 14, 2021 to Oct 31, 2023.
- DataCedar holds 1,640 daily sessions of S1OU34 history from Feb 27, 2020 and minute bars from Sep 25, 2026, adjusted for splits and dividends, served by the API under a key.
S1OU34 price chart, 2020 to 2026
S1OU34 returns
Price return from the last close on or before the window start to Sep 25, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -4.3% |
| 3 months | -12.6% |
| 6 months | +3.0% |
| Year to date | +9.8% |
| 1 year | +32.7% |
| 3 years | +50.9% |
| 5 years | -18.5% |
| 10 years | n/a |
| Since Feb 27, 2020 | +7.7% |
| Compound annual growth, 6.6 years | +1.1% |
S1OU34 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- R$345.13 on Apr 14, 2021
- All time low close
- R$106.64 on Oct 31, 2023
- 52 week high
- R$299.01 on Jun 18, 2026
- 52 week low
- R$162.09 on Oct 3, 2025
- Deepest drawdown
- -69.1% from Apr 14, 2021 to Oct 31, 2023, not yet recovered
- Best single session
- +21.1% on Feb 2, 2026
- Worst single session
- -19.9% on May 5, 2023
- Volatility, 1 year annualised
- 48.3%
- Sessions closing higher, 1 year
- 12%
- Best calendar year
- 2025, +23%
- Worst calendar year
- 2022, -26%
S1OU34 price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2020 starts on Feb 27, 2020; 2026 runs to Sep 25, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | R$196.70 | R$299.01 | R$186.05 | R$216.04 | +9.8% | 9.7K | 184 |
| 2025 | R$160.56 | R$196.70 | R$133.73 | R$196.70 | +22.5% | 5.9K | 250 |
| 2024 | R$134.95 | R$171.20 | R$125.03 | R$160.56 | +19.0% | 370 | 251 |
| 2023 | R$163.84 | R$176.94 | R$106.64 | R$134.95 | -17.6% | 3.6K | 248 |
| 2022 | R$225.45 | R$239.89 | R$151.67 | R$163.84 | -26.5% | 9.4K | 250 |
| 2021 | R$219.88 | R$345.13 | R$210.03 | R$222.78 | +1.3% | 13.6K | 247 |
| 2020 | R$192.74 | R$228.83 | R$145.36 | R$219.88 | n/a | 10.1K | 210 |
S1OU34 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | R$216.04 | -4.3% |
| August 2026 | R$225.83 | 0.0% |
| July 2026 | R$225.83 | -17.2% |
| June 2026 | R$272.86 | +23.8% |
| May 2026 | R$220.35 | +16.6% |
| April 2026 | R$189.00 | -10.7% |
| March 2026 | R$211.75 | -15.9% |
| February 2026 | R$251.72 | +17.9% |
| January 2026 | R$213.46 | +8.5% |
| December 2025 | R$196.70 | +8.4% |
| November 2025 | R$181.45 | 0.0% |
| October 2025 | R$181.45 | +11.5% |
About the S1OU34 data
Daily bars. 1,640 sessions from Feb 27, 2020 to Sep 25, 2026, one row per B3 trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 25, 2026 forward, most recent session Sep 25, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are B3 trading days; minute timestamps are UTC. Prices are in BRL. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Feb 27, 2020, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/S1OU34/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on B3
Common questions
S1OU34 share price history
