What is the all time high of PRT?

Protektor S.A. (PRT) closed at its highest ever adjusted price, PLN 11.93, on Jun 25, 2007. Its lowest close was PLN 0.0072 on Dec 6, 2002.

How much has PRT returned over the last 10 years?

-70.5% in price terms from the close ten years before Sep 28, 2026, which is -11.5% a year compounded. Over one year the return is -51.7%; over five years -75.0%.

What was the worst drawdown in PRT history?

-93.1% from the Jun 25, 2007 peak to the Dec 23, 2024 trough on adjusted closes; the previous peak has not been regained as of the last stored session.

How far back does PRT historical data go?

The daily series starts on Nov 20, 2000 and runs to Sep 28, 2026: 6,645 trading sessions across 25.9 years. Minute bars start on Sep 17, 2026 and are captured forward, never backfilled.

Are PRT historical prices adjusted for splits and dividends?

Yes. The page uses the fully adjusted series, in which every past price is scaled for later splits and cash dividends so returns are comparable across the whole history. The API also serves raw prices, split adjusted only and dividend adjusted only.

How do I get PRT historical data?

Register for a free key and call the bars endpoint: it returns date, open, high, low, close and volume as JSON, one year back on the free plan and the full series from Nov 20, 2000 on Quant and above. Minute history comes with the paid plans.

What were the best and worst years for PRT?

Among complete calendar years, 2003 was the best at +1,021% and 2008 the worst at -79.7%, measured close to close.

GPW · PRT · stock

Protektor S.A. (PRT) stock price history

Every GPW trading session of Protektor S.A. from Nov 20, 2000 to Sep 28, 2026: 6,645 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.

Get PRT data, free key Year by year table

PRT adjusted close, 2000 to 2026

PRTProtektor S.A.

PLN 0.8760-51.7% over one year

PLN 11.93
All time high, 2007: PLN 1.88
52 week high, PLN 0.8196 low: 6,645
Daily sessions since 2000

Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2000 to 2026 series and minute bars.

PRT key facts

Protektor S.A. (PRT) closed at PLN 0.8760 on Sep 28, 2026 on GPW.
PRT's all time high close is PLN 11.93, set on Jun 25, 2007; its all time low close is PLN 0.0072 on Dec 6, 2002.
PRT's 52 week range is PLN 0.8196 to PLN 1.88.
PRT returned -51.7% over the year to Sep 28, 2026 and -75.0% over five years.
Over ten years PRT returned -71%, -11.5% a year compounded.
PRT's deepest drawdown was -93.1% from Jun 25, 2007 to Dec 23, 2024.
DataCedar holds 6,645 daily sessions of PRT history from Nov 20, 2000 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.

PRT price chart, 2000 to 2026

Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

PRT returns

Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.

Period	Return
1 month	-3.0%
3 months	-26.9%
6 months	-26.4%
Year to date	-12.4%
1 year	-51.7%
3 years	-56.4%
5 years	-75.0%
10 years	-70.5%
Since Nov 20, 2000	+2,290%
Compound annual growth, 25.9 years	+13.1%

PRT records

Measured on the stored closes; every figure is reproducible from the API series.

All time high close: PLN 11.93 on Jun 25, 2007
All time low close: PLN 0.0072 on Dec 6, 2002
52 week high: PLN 1.88 on Sep 29, 2025
52 week low: PLN 0.8196 on Sep 2, 2026
Deepest drawdown: -93.1% from Jun 25, 2007 to Dec 23, 2024, not yet recovered
Best single session: +400.8% on Jun 13, 2005
Worst single session: -44.4% on Jun 17, 2002
Volatility, 1 year annualised: 64.8%
Sessions closing higher, 1 year: 33%
Growth of 1 since 2000: 23.9×
Best calendar year: 2003, +1,021%
Worst calendar year: 2008, -80%

PRT 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. 2000 starts on Nov 20, 2000; 2026 runs to Sep 28, 2026.

Year	Open	High	Low	Close	Return	Volume	Sessions
2026	PLN 1.00	PLN 1.71	PLN 0.8196	PLN 0.8760	-12.4%	44.3M	187
2025	PLN 0.8400	PLN 3.13	PLN 0.8360	PLN 1.00	+16.3%	68.7M	249
2024	PLN 1.82	PLN 2.50	PLN 0.8200	PLN 0.8600	-52.1%	5.8M	249
2023	PLN 2.07	PLN 2.91	PLN 1.68	PLN 1.79	-14.2%	6.1M	250
2022	PLN 2.88	PLN 6.21	PLN 1.97	PLN 2.09	-27.6%	14.8M	251
2021	PLN 3.60	PLN 4.18	PLN 2.66	PLN 2.88	-19.9%	4M	251
2020	PLN 3.45	PLN 7.90	PLN 2.20	PLN 3.60	+4.3%	15.5M	259
2019	PLN 4.59	PLN 4.59	PLN 3.26	PLN 3.45	-24.8%	378.9K	261
2018	PLN 3.77	PLN 4.96	PLN 3.03	PLN 4.59	+21.9%	2.1M	261
2017	PLN 2.79	PLN 3.99	PLN 2.76	PLN 3.77	+34.3%	3M	255
2016	PLN 2.57	PLN 3.31	PLN 2.48	PLN 2.81	+7.0%	3.5M	251
2015	PLN 2.23	PLN 2.89	PLN 2.21	PLN 2.62	+17.6%	4.2M	261
2014	PLN 2.12	PLN 2.90	PLN 1.99	PLN 2.23	+5.0%	6.8M	261
2013	PLN 3.06	PLN 3.18	PLN 2.07	PLN 2.12	-30.7%	2.9M	261
2012	PLN 1.73	PLN 3.56	PLN 1.73	PLN 3.06	+70.5%	4.9M	261
2011	PLN 3.84	PLN 4.85	PLN 1.62	PLN 1.80	-53.1%	6.1M	260
2010	PLN 2.59	PLN 4.85	PLN 2.02	PLN 3.83	+48.1%	9.8M	261
2009	PLN 1.69	PLN 2.87	PLN 1.21	PLN 2.59	+52.9%	11.2M	261
2008	PLN 8.64	PLN 8.64	PLN 1.52	PLN 1.69	-79.7%	4.4M	252
2007	PLN 3.07	PLN 11.98	PLN 2.34	PLN 8.34	+171.6%	44.4M	250
2006	PLN 1.57	PLN 6.07	PLN 1.47	PLN 3.07	+100.8%	64.6M	258
2005	PLN 0.4909	PLN 2.14	PLN 0.2330	PLN 1.53	+212.8%	22.5M	260
2004	PLN 0.1386	PLN 0.4971	PLN 0.1386	PLN 0.4888	+252.6%	2.6M	262
2003	PLN 0.0124	PLN 0.1641	PLN 0.0080	PLN 0.1386	+1,021%	801.5K	261
2002	PLN 0.0352	PLN 0.0352	PLN 0.0072	PLN 0.0124	-64.9%	617K	261
2001	PLN 0.0356	PLN 0.0431	PLN 0.0133	PLN 0.0352	-1.0%	3.7M	261
2000	PLN 0.0367	PLN 0.0370	PLN 0.0313	PLN 0.0356	n/a	14.2K	30

PRT monthly closes, last 12 months

Month	Month end close	Change
September 2026	PLN 0.8760	-2.0%
August 2026	PLN 0.8936	-21.3%
July 2026	PLN 1.14	-4.5%
June 2026	PLN 1.19	-6.7%
May 2026	PLN 1.28	+6.3%
April 2026	PLN 1.20	+0.4%
March 2026	PLN 1.20	-17.0%
February 2026	PLN 1.44	+44.6%
January 2026	PLN 0.9960	-0.4%
December 2025	PLN 1.00	-19.7%
November 2025	PLN 1.25	+0.8%
October 2025	PLN 1.24	-31.8%

About the PRT data

Daily bars. 6,645 sessions from Nov 20, 2000 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 Nov 20, 2000, 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/PRT/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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