Nasdaq Stockholm · TSEC · stock
Tempest Security AB (publ) (TSEC) stock price history
Every Nasdaq Stockholm trading session of Tempest Security AB (publ) from Dec 6, 2017 to Sep 28, 2026: 2,210 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.
TSEC adjusted close, 2017 to 2026
- SEK 52.00
- All time high, 2020
- SEK 14.95
- 52 week high, SEK 9.26 low
- 2,210
- Daily sessions since 2017
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2017 to 2026 series and minute bars.
TSEC key facts
- Tempest Security AB (publ) (TSEC) closed at SEK 10.20 on Sep 28, 2026 on Nasdaq Stockholm.
- TSEC's all time high close is SEK 52.00, set on Jul 20, 2020; its all time low close is SEK 9.30 on May 16, 2025.
- TSEC's 52 week range is SEK 9.26 to SEK 14.95.
- TSEC returned -23.3% over the year to Sep 28, 2026 and -68.1% over five years.
- Since Dec 6, 2017 TSEC returned -49%, -7.4% a year compounded.
- TSEC's deepest drawdown was -82.1% from Jul 20, 2020 to May 16, 2025.
- DataCedar holds 2,210 daily sessions of TSEC history from Dec 6, 2017 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
TSEC price chart, 2017 to 2026
TSEC returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +4.1% |
| 3 months | -7.3% |
| 6 months | -1.0% |
| Year to date | -16.7% |
| 1 year | -23.3% |
| 3 years | -24.4% |
| 5 years | -68.1% |
| 10 years | n/a |
| Since Dec 6, 2017 | -49.0% |
| Compound annual growth, 8.8 years | -7.4% |
TSEC records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- SEK 52.00 on Jul 20, 2020
- All time low close
- SEK 9.30 on May 16, 2025
- 52 week high
- SEK 14.95 on Dec 2, 2025
- 52 week low
- SEK 9.26 on Nov 11, 2025
- Deepest drawdown
- -82.1% from Jul 20, 2020 to May 16, 2025, not yet recovered
- Best single session
- +30.5% on Apr 5, 2019
- Worst single session
- -13.5% on Mar 16, 2020
- Volatility, 1 year annualised
- 42.7%
- Sessions closing higher, 1 year
- 35%
- Best calendar year
- 2019, +42%
- Worst calendar year
- 2022, -50%
TSEC 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. 2017 starts on Dec 6, 2017; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | SEK 12.25 | SEK 13.40 | SEK 9.35 | SEK 10.20 | -16.7% | 2.1M | 186 |
| 2025 | SEK 10.70 | SEK 18.90 | SEK 8.92 | SEK 12.25 | +14.5% | 1.6M | 249 |
| 2024 | SEK 15.60 | SEK 21.50 | SEK 9.16 | SEK 10.70 | -31.0% | 1.6M | 251 |
| 2023 | SEK 17.15 | SEK 20.00 | SEK 11.10 | SEK 15.50 | -8.8% | 1.5M | 251 |
| 2022 | SEK 33.50 | SEK 34.00 | SEK 11.70 | SEK 17.00 | -50.1% | 2.2M | 253 |
| 2021 | SEK 38.00 | SEK 42.00 | SEK 29.90 | SEK 34.10 | -9.1% | 1.5M | 253 |
| 2020 | SEK 30.00 | SEK 56.20 | SEK 23.10 | SEK 37.50 | +25.0% | 964.5K | 252 |
| 2019 | SEK 21.20 | SEK 31.60 | SEK 18.00 | SEK 30.00 | +41.5% | 2.3M | 247 |
| 2018 | SEK 19.00 | SEK 27.00 | SEK 14.50 | SEK 21.20 | +21.8% | 1.3M | 252 |
| 2017 | SEK 23.60 | SEK 23.60 | SEK 16.50 | SEK 17.40 | n/a | 166.6K | 16 |
TSEC monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | SEK 10.20 | 0.0% |
| August 2026 | SEK 10.20 | -12.1% |
| July 2026 | SEK 11.60 | +3.6% |
| June 2026 | SEK 11.20 | -13.8% |
| May 2026 | SEK 13.00 | +28.7% |
| April 2026 | SEK 10.10 | -1.9% |
| March 2026 | SEK 10.30 | +0.5% |
| February 2026 | SEK 10.25 | -3.8% |
| January 2026 | SEK 10.65 | -13.1% |
| December 2025 | SEK 12.25 | -11.2% |
| November 2025 | SEK 13.80 | +28.4% |
| October 2025 | SEK 10.75 | -19.8% |
About the TSEC data
Daily bars. 2,210 sessions from Dec 6, 2017 to Sep 28, 2026, one row per Nasdaq Stockholm 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 Nasdaq Stockholm trading days; minute timestamps are UTC. Prices are in SEK. 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 6, 2017, 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/TSEC/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq Stockholm
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Common questions
TSEC share price history
