GPW · BIO · stock
Bioton S.A. (BIO) stock price history
Every GPW trading session of Bioton S.A. from Mar 31, 2005 to Sep 28, 2026: 5,507 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 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.
BIO adjusted close, 2005 to 2026
- PLN 319.00
- All time high, 2006
- PLN 4.51
- 52 week high, PLN 3.43 low
- 5,507
- Daily sessions since 2005
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2005 to 2026 series and minute bars.
BIO key facts
- Bioton S.A. (BIO) closed at PLN 3.83 on Sep 28, 2026 on GPW.
- BIO's all time high close is PLN 319.00, set on Nov 13, 2006; its all time low close is PLN 2.00 on Aug 20, 2013.
- BIO's 52 week range is PLN 3.43 to PLN 4.51.
- BIO returned -14.9% over the year to Sep 28, 2026 and -19.9% over five years.
- Over ten years BIO returned -54%, -7.6% a year compounded.
- BIO's deepest drawdown was -99.4% from Nov 13, 2006 to Aug 20, 2013.
- DataCedar holds 5,507 daily sessions of BIO history from Mar 31, 2005 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
BIO price chart, 2005 to 2026
BIO returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +0.8% |
| 3 months | -3.5% |
| 6 months | -10.9% |
| Year to date | -0.8% |
| 1 year | -14.9% |
| 3 years | -0.4% |
| 5 years | -19.9% |
| 10 years | -54.4% |
| Since Mar 31, 2005 | -89.5% |
| Compound annual growth, 21.5 years | -9.9% |
BIO records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- PLN 319.00 on Nov 13, 2006
- All time low close
- PLN 2.00 on Aug 20, 2013
- 52 week high
- PLN 4.51 on May 14, 2026
- 52 week low
- PLN 3.43 on Sep 17, 2026
- Deepest drawdown
- -99.4% from Nov 13, 2006 to Aug 20, 2013, not yet recovered
- Best single session
- +50.0% on Aug 22, 2013
- Worst single session
- -33.3% on Aug 20, 2013
- Volatility, 1 year annualised
- 19.7%
- Sessions closing higher, 1 year
- 36%
- Best calendar year
- 2015, +201%
- Worst calendar year
- 2013, -80%
BIO 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. 2005 starts on Mar 31, 2005; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | PLN 3.86 | PLN 4.51 | PLN 3.43 | PLN 3.83 | -0.8% | 6.8M | 187 |
| 2025 | PLN 2.88 | PLN 4.70 | PLN 2.88 | PLN 3.86 | +33.8% | 11.2M | 249 |
| 2024 | PLN 3.57 | PLN 3.78 | PLN 2.80 | PLN 2.88 | -19.2% | 7.4M | 249 |
| 2023 | PLN 3.38 | PLN 4.10 | PLN 3.30 | PLN 3.57 | +5.9% | 10.5M | 250 |
| 2022 | PLN 4.20 | PLN 5.50 | PLN 3.26 | PLN 3.37 | -19.5% | 15.1M | 251 |
| 2021 | PLN 4.38 | PLN 6.59 | PLN 3.96 | PLN 4.18 | -3.3% | 30.4M | 251 |
| 2020 | PLN 3.80 | PLN 7.82 | PLN 2.00 | PLN 4.33 | +13.9% | 38.4M | 259 |
| 2019 | PLN 5.06 | PLN 5.86 | PLN 3.62 | PLN 3.80 | -24.9% | 9.3M | 261 |
| 2018 | PLN 3.49 | PLN 7.65 | PLN 3.45 | PLN 5.06 | +45.0% | 23.2M | 261 |
| 2017 | PLN 8.16 | PLN 8.50 | PLN 3.13 | PLN 3.49 | -57.3% | 14.6M | 255 |
| 2016 | PLN 11.34 | PLN 13.31 | PLN 7.30 | PLN 8.17 | -31.5% | 17.4M | 251 |
| 2015 | PLN 3.97 | PLN 17.35 | PLN 3.94 | PLN 11.93 | +200.5% | 60.2M | 261 |
| 2014 | PLN 2.00 | PLN 7.15 | PLN 2.00 | PLN 3.97 | +98.5% | 61.9M | 261 |
| 2013 | PLN 10.00 | PLN 10.00 | PLN 2.00 | PLN 2.00 | -80.0% | 42.3M | 261 |
| 2012 | PLN 7.00 | PLN 13.00 | PLN 5.00 | PLN 10.00 | +66.7% | 49.7M | 261 |
| 2011 | PLN 16.00 | PLN 19.00 | PLN 6.00 | PLN 6.00 | -60.0% | 32.9M | 260 |
| 2010 | PLN 23.00 | PLN 26.00 | PLN 14.00 | PLN 15.00 | -34.8% | 57.6M | 261 |
| 2009 | PLN 20.00 | PLN 35.00 | PLN 17.00 | PLN 23.00 | +15.0% | 71M | 261 |
| 2008 | PLN 89.00 | PLN 114.00 | PLN 19.00 | PLN 20.00 | -77.5% | 37.4M | 252 |
| 2007 | PLN 222.00 | PLN 244.00 | PLN 78.00 | PLN 89.00 | -59.2% | 33.4M | 250 |
| 2006 | PLN 103.37 | PLN 325.36 | PLN 100.83 | PLN 218.00 | +118.0% | 112M | 258 |
| 2005 | PLN 36.18 | PLN 106.76 | PLN 31.77 | PLN 99.98 | n/a | 45.6M | 197 |
BIO monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | PLN 3.83 | +1.3% |
| August 2026 | PLN 3.78 | -0.8% |
| July 2026 | PLN 3.81 | -3.8% |
| June 2026 | PLN 3.96 | -5.3% |
| May 2026 | PLN 4.18 | +0.2% |
| April 2026 | PLN 4.17 | -3.5% |
| March 2026 | PLN 4.32 | -0.7% |
| February 2026 | PLN 4.35 | +9.6% |
| January 2026 | PLN 3.97 | +2.8% |
| December 2025 | PLN 3.86 | -2.5% |
| November 2025 | PLN 3.96 | -7.5% |
| October 2025 | PLN 4.28 | -3.4% |
About the BIO data
Daily bars. 5,507 sessions from Mar 31, 2005 to Sep 28, 2026, one row per GPW 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 17, 2026 forward, most recent session Sep 28, 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 GPW trading days; minute timestamps are UTC. Prices are in PLN. 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 Mar 31, 2005, 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/BIO/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on GPW
Common questions
BIO share price history
