Xetra · BIG · stock
Bio-Gate AG (BIG) stock price history
Every Xetra trading session of Bio-Gate AG from Dec 28, 2007 to Sep 28, 2026: 4,762 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.
BIG adjusted close, 2007 to 2026
- €32.55
- All time high, 2008
- €4.95
- 52 week high, €2.50 low
- 4,762
- Daily sessions since 2007
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2007 to 2026 series and minute bars.
BIG key facts
- Bio-Gate AG (BIG) closed at €2.60 on Sep 28, 2026 on Xetra.
- BIG's all time high close is €32.55, set on Jan 9, 2008; its all time low close is €1.35 on Nov 19, 2012.
- BIG's 52 week range is €2.50 to €4.95.
- BIG returned -46.1% over the year to Sep 28, 2026 and -88.1% over five years.
- Over ten years BIG returned -63%, -9.4% a year compounded.
- BIG's deepest drawdown was -95.9% from Jan 9, 2008 to Nov 19, 2012.
- DataCedar holds 4,762 daily sessions of BIG history from Dec 28, 2007 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
BIG price chart, 2007 to 2026
BIG returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -5.1% |
| 3 months | -11.9% |
| 6 months | -14.0% |
| Year to date | -36.2% |
| 1 year | -46.1% |
| 3 years | -43.5% |
| 5 years | -88.1% |
| 10 years | -62.9% |
| Since Dec 28, 2007 | -91.9% |
| Compound annual growth, 18.8 years | -12.5% |
BIG records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- €32.55 on Jan 9, 2008
- All time low close
- €1.35 on Nov 19, 2012
- 52 week high
- €4.95 on Sep 30, 2025
- 52 week low
- €2.50 on Feb 6, 2026
- Deepest drawdown
- -95.9% from Jan 9, 2008 to Nov 19, 2012, not yet recovered
- Best single session
- +283.3% on Nov 27, 2012
- Worst single session
- -29.7% on Nov 13, 2009
- Volatility, 1 year annualised
- 78.8%
- Sessions closing higher, 1 year
- 34%
- Best calendar year
- 2021, +183%
- Worst calendar year
- 2023, -59%
BIG 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. 2007 starts on Dec 28, 2007; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | €3.90 | €4.45 | €2.50 | €2.60 | -36.2% | 124.7K | 189 |
| 2025 | €3.90 | €7.25 | €3.15 | €4.07 | +3.2% | 114.1K | 253 |
| 2024 | €5.65 | €8.25 | €2.80 | €3.95 | -28.8% | 204.7K | 254 |
| 2023 | €13.20 | €13.60 | €2.65 | €5.55 | -59.2% | 139.6K | 255 |
| 2022 | €19.80 | €24.70 | €12.80 | €13.60 | -31.3% | 44.6K | 257 |
| 2021 | €7.00 | €25.50 | €7.00 | €19.80 | +182.9% | 74.9K | 255 |
| 2020 | €7.00 | €7.00 | €7.00 | €7.00 | 0.0% | 0 | 254 |
| 2019 | €7.00 | €7.00 | €7.00 | €7.00 | 0.0% | 0 | 251 |
| 2018 | €7.00 | €7.00 | €7.00 | €7.00 | 0.0% | 0 | 252 |
| 2017 | €7.00 | €7.00 | €7.00 | €7.00 | 0.0% | 0 | 255 |
| 2016 | €7.00 | €7.00 | €7.00 | €7.00 | 0.0% | 0 | 255 |
| 2015 | €6.59 | €7.97 | €6.14 | €7.00 | +6.1% | 11.4K | 254 |
| 2014 | €9.14 | €9.90 | €6.25 | €6.59 | -28.7% | 66K | 252 |
| 2013 | €4.61 | €12.25 | €4.61 | €9.25 | +103.3% | 80.1K | 252 |
| 2012 | €5.00 | €6.00 | €1.35 | €4.55 | -13.3% | 89.9K | 253 |
| 2011 | €9.90 | €10.55 | €3.50 | €5.25 | -47.0% | 90.2K | 256 |
| 2010 | €13.45 | €16.25 | €8.75 | €9.90 | -26.4% | 104.5K | 256 |
| 2009 | €17.50 | €18.50 | €12.50 | €13.45 | -23.1% | 11.1K | 254 |
| 2008 | €32.50 | €36.50 | €11.50 | €17.50 | -45.2% | 50K | 254 |
| 2007 | €32.00 | €32.00 | €31.50 | €31.95 | n/a | 1.3K | 1 |
BIG monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | €2.60 | -7.1% |
| August 2026 | €2.80 | -14.5% |
| July 2026 | €3.28 | +6.5% |
| June 2026 | €3.08 | -5.4% |
| May 2026 | €3.25 | -8.5% |
| April 2026 | €3.55 | +10.9% |
| March 2026 | €3.20 | +14.3% |
| February 2026 | €2.80 | -27.3% |
| January 2026 | €3.85 | -5.5% |
| December 2025 | €4.07 | -14.7% |
| November 2025 | €4.78 | +22.4% |
| October 2025 | €3.90 | -18.8% |
About the BIG data
Daily bars. 4,762 sessions from Dec 28, 2007 to Sep 28, 2026, one row per Xetra 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 Xetra trading days; minute timestamps are UTC. Prices are in EUR. 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 Dec 28, 2007, 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/BIG/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Xetra
Common questions
BIG share price history
