GPW · DIA · stock
Diagnostyka S.A. (DIA) stock price history
Every GPW trading session of Diagnostyka S.A. from Feb 11, 2025 to Sep 28, 2026: 409 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.
DIA adjusted close, 2025 to 2026
- PLN 211.34
- All time high, 2025
- PLN 202.86
- 52 week high, PLN 142.78 low
- 409
- Daily sessions since 2025
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2025 to 2026 series and minute bars.
DIA key facts
- Diagnostyka S.A. (DIA) closed at PLN 163.00 on Sep 28, 2026 on GPW.
- DIA's all time high close is PLN 211.34, set on Sep 12, 2025; its all time low close is PLN 119.48 on Feb 17, 2025.
- DIA's 52 week range is PLN 142.78 to PLN 202.86.
- DIA returned -18.5% over the year to Sep 28, 2026.
- Since Feb 11, 2025 DIA returned +31%, +17.9% a year compounded.
- DIA's deepest drawdown was -31.7% from Sep 12, 2025 to Apr 23, 2026.
- DataCedar holds 409 daily sessions of DIA history from Feb 11, 2025 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
DIA price chart, 2025 to 2026
DIA returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -3.4% |
| 3 months | -5.2% |
| 6 months | -0.9% |
| Year to date | -2.3% |
| 1 year | -18.5% |
| 3 years | n/a |
| 5 years | n/a |
| 10 years | n/a |
| Since Feb 11, 2025 | +30.8% |
| Compound annual growth, 1.6 years | +17.9% |
DIA records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- PLN 211.34 on Sep 12, 2025
- All time low close
- PLN 119.48 on Feb 17, 2025
- 52 week high
- PLN 202.86 on Jan 22, 2026
- 52 week low
- PLN 142.78 on Apr 24, 2026
- Deepest drawdown
- -31.7% from Sep 12, 2025 to Apr 23, 2026, not yet recovered
- Best single session
- +11.3% on Mar 13, 2025
- Worst single session
- -6.3% on Apr 21, 2026
- Volatility, 1 year annualised
- 30.2%
- Sessions closing higher, 1 year
- 43%
DIA 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. 2025 starts on Feb 11, 2025; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | PLN 170.09 | PLN 202.86 | PLN 142.78 | PLN 163.00 | -2.3% | 8.4M | 187 |
| 2025 | PLN 124.16 | PLN 214.46 | PLN 119.42 | PLN 166.77 | n/a | 14.2M | 222 |
DIA monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | PLN 163.00 | -3.5% |
| August 2026 | PLN 168.90 | +1.4% |
| July 2026 | PLN 166.60 | -4.1% |
| June 2026 | PLN 173.70 | +0.1% |
| May 2026 | PLN 173.50 | +17.0% |
| April 2026 | PLN 148.24 | -11.3% |
| March 2026 | PLN 167.16 | -9.1% |
| February 2026 | PLN 183.98 | -0.6% |
| January 2026 | PLN 185.06 | +11.0% |
| December 2025 | PLN 166.77 | +0.3% |
| November 2025 | PLN 166.33 | -7.7% |
| October 2025 | PLN 180.23 | -2.8% |
About the DIA data
Daily bars. 409 sessions from Feb 11, 2025 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 11, 2025, 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/DIA/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on GPW
Common questions
DIA share price history
