GPW · CLN · stock
Celon Pharma S.A. (CLN) stock price history
Every GPW trading session of Celon Pharma S.A. from Feb 17, 2017 to Sep 28, 2026: 2,440 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.
CLN adjusted close, 2017 to 2026
- PLN 52.04
- All time high, 2021
- PLN 23.50
- 52 week high, PLN 18.50 low
- 2,440
- 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.
CLN key facts
- Celon Pharma S.A. (CLN) closed at PLN 19.50 on Sep 28, 2026 on GPW.
- CLN's all time high close is PLN 52.04, set on Jan 18, 2021; its all time low close is PLN 11.89 on Oct 13, 2022.
- CLN's 52 week range is PLN 18.50 to PLN 23.50.
- CLN returned -9.7% over the year to Sep 28, 2026 and -47.6% over five years.
- Since Feb 17, 2017 CLN returned -36%, -4.6% a year compounded.
- CLN's deepest drawdown was -77.2% from Jan 18, 2021 to Oct 13, 2022.
- DataCedar holds 2,440 daily sessions of CLN history from Feb 17, 2017 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
CLN price chart, 2017 to 2026
CLN returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -12.2% |
| 3 months | -1.8% |
| 6 months | +0.2% |
| Year to date | -4.2% |
| 1 year | -9.7% |
| 3 years | +28.4% |
| 5 years | -47.6% |
| 10 years | n/a |
| Since Feb 17, 2017 | -36.3% |
| Compound annual growth, 9.6 years | -4.6% |
CLN records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- PLN 52.04 on Jan 18, 2021
- All time low close
- PLN 11.89 on Oct 13, 2022
- 52 week high
- PLN 23.50 on Oct 3, 2025
- 52 week low
- PLN 18.50 on Dec 23, 2025
- Deepest drawdown
- -77.2% from Jan 18, 2021 to Oct 13, 2022, not yet recovered
- Best single session
- +40.3% on Jul 8, 2024
- Worst single session
- -18.3% on Mar 12, 2020
- Volatility, 1 year annualised
- 26.0%
- Sessions closing higher, 1 year
- 42%
- Best calendar year
- 2024, +72%
- Worst calendar year
- 2022, -58%
CLN 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 Feb 17, 2017; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | PLN 20.65 | PLN 23.50 | PLN 18.76 | PLN 19.50 | -4.2% | 2.3M | 187 |
| 2025 | PLN 26.45 | PLN 28.65 | PLN 18.50 | PLN 20.35 | -23.1% | 7.9M | 249 |
| 2024 | PLN 15.40 | PLN 32.90 | PLN 14.55 | PLN 26.45 | +72.0% | 17.1M | 249 |
| 2023 | PLN 13.85 | PLN 18.20 | PLN 12.96 | PLN 15.38 | +10.9% | 8.6M | 250 |
| 2022 | PLN 32.79 | PLN 33.39 | PLN 11.87 | PLN 13.87 | -57.7% | 7M | 251 |
| 2021 | PLN 40.93 | PLN 56.28 | PLN 28.98 | PLN 32.79 | -18.1% | 12M | 251 |
| 2020 | PLN 39.10 | PLN 49.64 | PLN 22.70 | PLN 40.04 | +2.4% | 7.4M | 259 |
| 2019 | PLN 30.60 | PLN 50.04 | PLN 29.09 | PLN 39.10 | +27.8% | 3.4M | 261 |
| 2018 | PLN 34.87 | PLN 35.11 | PLN 27.37 | PLN 30.60 | -12.2% | 2.9M | 261 |
| 2017 | PLN 31.28 | PLN 39.63 | PLN 27.15 | PLN 34.87 | n/a | 8.6M | 222 |
CLN monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | PLN 19.50 | -11.0% |
| August 2026 | PLN 21.90 | +6.6% |
| July 2026 | PLN 20.55 | +4.2% |
| June 2026 | PLN 19.72 | -3.8% |
| May 2026 | PLN 20.50 | -3.5% |
| April 2026 | PLN 21.25 | +7.4% |
| March 2026 | PLN 19.78 | -12.9% |
| February 2026 | PLN 22.70 | +4.1% |
| January 2026 | PLN 21.80 | +7.1% |
| December 2025 | PLN 20.35 | -6.2% |
| November 2025 | PLN 21.70 | +0.7% |
| October 2025 | PLN 21.55 | -1.1% |
About the CLN data
Daily bars. 2,440 sessions from Feb 17, 2017 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 Feb 17, 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/CLN/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on GPW
Common questions
CLN share price history
