GPW · BDF · stock
Bumech Defense Partners S.A. (BDF) stock price history
Every GPW trading session of Bumech Defense Partners S.A. from Aug 20, 2004 to Nov 13, 2026: 5,690 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.
BDF adjusted close, 2004 to 2026
- PLN 18.08
- All time high, 2007
- PLN 14.80
- 52 week high, PLN 0.5500 low
- 5,690
- Daily sessions since 2004
Last updated Nov 13, 2026, the last stored session. Refreshes after each trading day. Full 2004 to 2026 series and minute bars.
BDF key facts
- Bumech Defense Partners S.A. (BDF) closed at PLN 4.50 on Nov 13, 2026 on GPW.
- BDF's all time high close is PLN 18.08, set on Jun 26, 2007; its all time low close is PLN 0.1070 on Dec 23, 2024.
- BDF's 52 week range is PLN 0.5500 to PLN 14.80.
- BDF returned +689.5% over the year to Nov 13, 2026 and +110.3% over five years.
- Over ten years BDF returned +70%, +5.5% a year compounded.
- BDF's deepest drawdown was -99.4% from Jun 26, 2007 to Dec 23, 2024.
- DataCedar holds 5,690 daily sessions of BDF history from Aug 20, 2004 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
BDF price chart, 2004 to 2026
BDF returns
Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -35.7% |
| 3 months | +46.1% |
| 6 months | +50.0% |
| Year to date | +420.2% |
| 1 year | +689.5% |
| 3 years | +294.7% |
| 5 years | +110.3% |
| 10 years | +70.5% |
| Since Aug 20, 2004 | +82.4% |
| Compound annual growth, 22.2 years | +2.7% |
BDF records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- PLN 18.08 on Jun 26, 2007
- All time low close
- PLN 0.1070 on Dec 23, 2024
- 52 week high
- PLN 14.80 on Sep 3, 2026
- 52 week low
- PLN 0.5500 on Nov 14, 2025
- Deepest drawdown
- -99.4% from Jun 26, 2007 to Dec 23, 2024, not yet recovered
- Best single session
- +83.9% on Dec 6, 2005
- Worst single session
- -64.5% on Aug 23, 2024
- Volatility, 1 year annualised
- 152.2%
- Sessions closing higher, 1 year
- 43%
- Best calendar year
- 2025, +694%
- Worst calendar year
- 2024, -87%
BDF 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. 2004 starts on Aug 20, 2004; 2026 runs to Nov 13, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | PLN 0.8650 | PLN 14.80 | PLN 0.8650 | PLN 4.50 | +420.2% | 61.7M | 216 |
| 2025 | PLN 0.1400 | PLN 1.17 | PLN 0.1140 | PLN 0.8650 | +693.6% | 3.9M | 249 |
| 2024 | PLN 0.8000 | PLN 0.9500 | PLN 0.1060 | PLN 0.1090 | -86.5% | 1.4M | 249 |
| 2023 | PLN 1.11 | PLN 1.51 | PLN 0.7500 | PLN 0.8100 | -27.7% | 2.1M | 250 |
| 2022 | PLN 1.92 | PLN 3.50 | PLN 0.9100 | PLN 1.12 | -45.1% | 1.7M | 251 |
| 2021 | PLN 1.05 | PLN 2.20 | PLN 1.05 | PLN 2.04 | +106.1% | 1.9M | 251 |
| 2020 | PLN 1.22 | PLN 1.53 | PLN 0.8500 | PLN 0.9900 | -18.9% | 1.1M | 259 |
| 2019 | PLN 2.18 | PLN 2.26 | PLN 1.11 | PLN 1.22 | -44.0% | 1.8M | 261 |
| 2018 | PLN 3.47 | PLN 4.97 | PLN 1.92 | PLN 2.18 | -37.2% | 3.5M | 261 |
| 2017 | PLN 2.61 | PLN 3.77 | PLN 2.36 | PLN 3.47 | +39.9% | 4.3M | 255 |
| 2016 | PLN 2.13 | PLN 3.35 | PLN 2.07 | PLN 2.48 | +17.5% | 3.1M | 251 |
| 2015 | PLN 2.62 | PLN 3.16 | PLN 1.98 | PLN 2.11 | -19.5% | 4.1M | 261 |
| 2014 | PLN 1.58 | PLN 2.68 | PLN 1.50 | PLN 2.62 | +65.8% | 4.6M | 261 |
| 2013 | PLN 1.37 | PLN 1.86 | PLN 1.11 | PLN 1.58 | +15.3% | 6M | 258 |
| 2012 | PLN 1.28 | PLN 2.28 | PLN 1.00 | PLN 1.37 | +16.1% | 8.9M | 259 |
| 2011 | PLN 1.70 | PLN 1.98 | PLN 0.9500 | PLN 1.18 | -30.6% | 6.8M | 260 |
| 2010 | PLN 2.10 | PLN 2.56 | PLN 1.59 | PLN 1.70 | -19.0% | 16.4M | 261 |
| 2009 | PLN 1.54 | PLN 3.22 | PLN 0.9400 | PLN 2.10 | +36.4% | 20.4M | 261 |
| 2008 | PLN 6.29 | PLN 6.78 | PLN 1.39 | PLN 1.54 | -75.2% | 18.7M | 252 |
| 2007 | PLN 7.81 | PLN 18.90 | PLN 4.02 | PLN 6.20 | -10.9% | 68.6M | 250 |
| 2006 | PLN 4.81 | PLN 17.70 | PLN 3.96 | PLN 6.96 | +46.4% | 30.9M | 258 |
| 2005 | PLN 0.7075 | PLN 5.66 | PLN 0.4641 | PLN 4.75 | +541.3% | 5.1M | 260 |
| 2004 | PLN 0.4867 | PLN 4.53 | PLN 0.4867 | PLN 0.7414 | n/a | 1.4M | 96 |
BDF monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | PLN 4.50 | -16.7% |
| October 2026 | PLN 5.40 | -39.7% |
| September 2026 | PLN 8.95 | +9.8% |
| August 2026 | PLN 8.15 | +338.2% |
| July 2026 | PLN 1.86 | -31.6% |
| June 2026 | PLN 2.72 | -27.7% |
| May 2026 | PLN 3.76 | +7.4% |
| April 2026 | PLN 3.50 | +81.3% |
| March 2026 | PLN 1.93 | 0.0% |
| February 2026 | PLN 1.93 | -10.6% |
| January 2026 | PLN 2.16 | +149.7% |
| December 2025 | PLN 0.8650 | -1.7% |
About the BDF data
Daily bars. 5,690 sessions from Aug 20, 2004 to Nov 13, 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 Nov 10, 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 Aug 20, 2004, 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/gpw%3ABDF/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on GPW
Common questions
BDF share price history
