Xetra · YSN · stock
secunet Security Networks Aktiengesellschaft (YSN) stock price history
Every Xetra trading session of secunet Security Networks Aktiengesellschaft from Nov 12, 1999 to Nov 13, 2026: 6,861 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.
YSN adjusted close, 1999 to 2026
- €556.43
- All time high, 2021
- €268.00
- 52 week high, €150.85 low
- 6,861
- Daily sessions since 1999
Last updated Nov 13, 2026, the last stored session. Refreshes after each trading day. Full 1999 to 2026 series and minute bars.
YSN key facts
- secunet Security Networks Aktiengesellschaft (YSN) closed at €198.60 on Nov 13, 2026 on Xetra.
- YSN's all time high close is €556.43, set on Nov 8, 2021; its all time low close is €2.05 on Mar 6, 2002.
- YSN's 52 week range is €150.85 to €268.00.
- YSN returned +12.4% over the year to Nov 13, 2026 and -62.8% over five years.
- Over ten years YSN returned +546%, +20.5% a year compounded.
- YSN's deepest drawdown was -97.9% from Mar 13, 2000 to Mar 6, 2002.
- DataCedar holds 6,861 daily sessions of YSN history from Nov 12, 1999 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
YSN price chart, 1999 to 2026
YSN returns
Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -20.1% |
| 3 months | +0.9% |
| 6 months | +4.6% |
| Year to date | +8.5% |
| 1 year | +12.4% |
| 3 years | +42.2% |
| 5 years | -62.8% |
| 10 years | +546.4% |
| Since Nov 12, 1999 | +1,132% |
| Compound annual growth, 27.0 years | +9.7% |
YSN records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- €556.43 on Nov 8, 2021
- All time low close
- €2.05 on Mar 6, 2002
- 52 week high
- €268.00 on Oct 12, 2026
- 52 week low
- €150.85 on Mar 30, 2026
- Deepest drawdown
- -97.9% from Mar 13, 2000 to Mar 6, 2002, recovered Dec 4, 2017
- Best single session
- +48.1% on Dec 28, 2001
- Worst single session
- -28.6% on Oct 27, 2023
- Volatility, 1 year annualised
- 50.2%
- Sessions closing higher, 1 year
- 48%
- Growth of 1 since 1999
- 12.3×
- Best calendar year
- 2005, +151%
- Worst calendar year
- 2001, -78%
YSN 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. 1999 starts on Nov 12, 1999; 2026 runs to Nov 13, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | €182.24 | €268.00 | €150.85 | €198.60 | +8.5% | 1.2M | 218 |
| 2025 | €112.43 | €242.86 | €107.56 | €183.03 | +61.4% | 1.3M | 253 |
| 2024 | €141.43 | €170.17 | €86.71 | €113.41 | -18.9% | 776.3K | 254 |
| 2023 | €186.60 | €245.29 | €119.20 | €139.89 | -24.6% | 786.3K | 255 |
| 2022 | €387.83 | €431.96 | €154.69 | €185.47 | -51.7% | 1.2M | 257 |
| 2021 | €237.70 | €564.79 | €209.14 | €384.12 | +68.1% | 1.2M | 255 |
| 2020 | €128.06 | €285.61 | €81.04 | €228.49 | +78.4% | 675.2K | 254 |
| 2019 | €80.17 | €138.58 | €78.64 | €128.06 | +62.8% | 261.3K | 251 |
| 2018 | €84.29 | €118.50 | €71.87 | €78.64 | -5.4% | 424.6K | 252 |
| 2017 | €41.25 | €103.14 | €39.89 | €83.11 | +105.7% | 1.2M | 255 |
| 2016 | €19.06 | €41.25 | €18.60 | €40.40 | +110.4% | 276.1K | 255 |
| 2015 | €16.54 | €19.32 | €15.81 | €19.20 | +17.0% | 130.3K | 254 |
| 2014 | €17.08 | €19.42 | €14.25 | €16.41 | -3.6% | 208.4K | 244 |
| 2013 | €10.67 | €20.35 | €9.41 | €17.03 | +59.3% | 249.6K | 252 |
| 2012 | €8.66 | €10.77 | €8.01 | €10.69 | +21.1% | 372.8K | 252 |
| 2011 | €10.47 | €10.81 | €7.21 | €8.82 | -14.3% | 392.9K | 253 |
| 2010 | €6.45 | €11.02 | €6.36 | €10.30 | +56.7% | 481K | 254 |
| 2009 | €3.63 | €7.18 | €2.45 | €6.57 | +68.5% | 865.2K | 253 |
| 2008 | €3.93 | €4.95 | €2.54 | €3.90 | -4.2% | 886.4K | 253 |
| 2007 | €6.76 | €8.29 | €3.57 | €4.07 | -44.2% | 917.8K | 250 |
| 2006 | €9.37 | €12.21 | €5.18 | €7.29 | -20.7% | 1.2M | 255 |
| 2005 | €3.98 | €14.66 | €3.77 | €9.20 | +150.6% | 989.8K | 257 |
| 2004 | €2.99 | €5.52 | €2.50 | €3.67 | +23.0% | 657.6K | 257 |
| 2003 | €3.39 | €3.48 | €2.37 | €2.99 | -12.0% | 313.3K | 261 |
| 2002 | €3.39 | €4.10 | €1.97 | €3.39 | 0.0% | 681.5K | 259 |
| 2001 | €15.69 | €16.96 | €1.95 | €3.39 | -78.4% | 2.2M | 254 |
| 2000 | €38.42 | €105.17 | €10.47 | €15.69 | -58.9% | 1.4M | 259 |
| 1999 | €16.03 | €51.73 | €13.32 | €38.17 | n/a | 477.1K | 35 |
YSN monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | €198.60 | -18.3% |
| October 2026 | €243.00 | -0.4% |
| September 2026 | €244.00 | +36.3% |
| August 2026 | €179.00 | +0.1% |
| July 2026 | €178.80 | +5.9% |
| June 2026 | €168.80 | -17.8% |
| May 2026 | €205.34 | +13.8% |
| April 2026 | €180.47 | +3.5% |
| March 2026 | €174.34 | -7.0% |
| February 2026 | €187.38 | -20.3% |
| January 2026 | €234.96 | +28.4% |
| December 2025 | €183.03 | -0.2% |
About the YSN data
Daily bars. 6,861 sessions from Nov 12, 1999 to Nov 13, 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 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 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 Nov 12, 1999, 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/xetra%3AYSN/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Xetra
Common questions
YSN share price history
