What is the all time high of COG?

Cognor Holding S.A. (COG) closed at its highest ever adjusted price, PLN 20.12, on Mar 23, 2007. Its lowest close was PLN 0.3638 on Dec 4, 2002.

How much has COG returned over the last 10 years?

+312.8% in price terms from the close ten years before Nov 13, 2026, which is +15.2% a year compounded. Over one year the return is -36.0%; over five years +22.6%.

What was the worst drawdown in COG history?

-98.1% from the Mar 23, 2007 peak to the May 16, 2013 trough on adjusted closes; the previous peak has not been regained as of the last stored session.

How far back does COG historical data go?

The daily series starts on Nov 17, 2000 and runs to Nov 13, 2026: 6,547 trading sessions across 26.0 years. Minute bars start on Sep 17, 2026 and are captured forward, never backfilled.

Are COG 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 COG 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 17, 2000 on Quant and above. Minute history comes with the paid plans.

What were the best and worst years for COG?

Among complete calendar years, 2006 was the best at +461.2% and 2007 the worst at -66.9%, measured close to close.

GPW · COG · stock

Cognor Holding S.A. (COG) stock price history

Every GPW trading session of Cognor Holding S.A. from Nov 17, 2000 to Nov 13, 2026: 6,547 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 COG data, free key Year by year table

COG adjusted close, 2000 to 2026

COGCognor Holding S.A.

PLN 4.13-36.0% over one year

PLN 20.12
All time high, 2007: PLN 7.20
52 week high, PLN 4.07 low: 6,547
Daily sessions since 2000

Last updated Nov 13, 2026, the last stored session. Refreshes after each trading day. Full 2000 to 2026 series and minute bars.

COG key facts

Cognor Holding S.A. (COG) closed at PLN 4.13 on Nov 13, 2026 on GPW.
COG's all time high close is PLN 20.12, set on Mar 23, 2007; its all time low close is PLN 0.3638 on Dec 4, 2002.
COG's 52 week range is PLN 4.07 to PLN 7.20.
COG returned -36.0% over the year to Nov 13, 2026 and +22.6% over five years.
Over ten years COG returned +313%, +15.2% a year compounded.
COG's deepest drawdown was -98.1% from Mar 23, 2007 to May 16, 2013.
DataCedar holds 6,547 daily sessions of COG history from Nov 17, 2000 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.

COG price chart, 2000 to 2026

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

COG returns

Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.

Period	Return
1 month	-20.7%
3 months	-37.5%
6 months	-19.6%
Year to date	-19.3%
1 year	-36.0%
3 years	-45.2%
5 years	+22.6%
10 years	+312.8%
Since Nov 17, 2000	+232.9%
Compound annual growth, 26.0 years	+4.7%

COG records

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

All time high close: PLN 20.12 on Mar 23, 2007
All time low close: PLN 0.3638 on Dec 4, 2002
52 week high: PLN 7.20 on Jun 2, 2026
52 week low: PLN 4.07 on Nov 13, 2026
Deepest drawdown: -98.1% from Mar 23, 2007 to May 16, 2013, not yet recovered
Best single session: +75.4% on Nov 22, 2006
Worst single session: -25.4% on Apr 12, 2013
Volatility, 1 year annualised: 45.8%
Sessions closing higher, 1 year: 41%
Growth of 1 since 2000: 3.3×
Best calendar year: 2006, +461%
Worst calendar year: 2007, -67%

COG 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 17, 2000; 2026 runs to Nov 13, 2026.

Year	Open	High	Low	Close	Return	Volume	Sessions
2026	PLN 5.30	PLN 7.20	PLN 4.07	PLN 4.13	-19.3%	98.2M	216
2025	PLN 6.80	PLN 8.73	PLN 4.63	PLN 5.12	-24.3%	42.6M	249
2024	PLN 8.38	PLN 9.89	PLN 4.64	PLN 6.76	-18.9%	30.9M	249
2023	PLN 4.00	PLN 9.84	PLN 3.88	PLN 8.34	+111.0%	79.5M	250
2022	PLN 3.27	PLN 5.66	PLN 2.93	PLN 3.95	+21.3%	89.7M	250
2021	PLN 1.43	PLN 4.20	PLN 1.32	PLN 3.26	+128.7%	118.3M	251
2020	PLN 1.01	PLN 1.46	PLN 0.5000	PLN 1.43	+41.1%	27.8M	255
2019	PLN 1.10	PLN 1.42	PLN 0.9039	PLN 1.01	-8.1%	20.8M	261
2018	PLN 0.9679	PLN 1.57	PLN 0.9548	PLN 1.10	+13.6%	23M	261
2017	PLN 1.00	PLN 1.31	PLN 0.8445	PLN 0.9679	-2.6%	20.4M	253
2016	PLN 0.4872	PLN 1.07	PLN 0.4028	PLN 0.9939	+91.3%	19.5M	248
2015	PLN 0.8705	PLN 1.20	PLN 0.4157	PLN 0.5197	-40.3%	9.7M	249
2014	PLN 0.7925	PLN 1.33	PLN 0.7925	PLN 0.8705	+9.8%	10.9M	255
2013	PLN 1.42	PLN 1.54	PLN 0.3703	PLN 0.7925	-44.0%	31M	252
2012	PLN 2.19	PLN 2.87	PLN 1.34	PLN 1.42	-32.9%	14.1M	255
2011	PLN 1.57	PLN 3.80	PLN 1.52	PLN 2.11	+35.4%	54M	258
2010	PLN 1.64	PLN 2.90	PLN 1.48	PLN 1.56	-4.8%	53.7M	257
2009	PLN 1.75	PLN 3.20	PLN 1.35	PLN 1.64	+1.6%	27.7M	256
2008	PLN 3.74	PLN 4.82	PLN 1.34	PLN 1.61	-56.5%	32.2M	252
2007	PLN 11.81	PLN 20.72	PLN 3.49	PLN 3.70	-66.9%	36.9M	246
2006	PLN 1.97	PLN 16.76	PLN 1.97	PLN 11.19	+461.2%	30.6M	257
2005	PLN 1.73	PLN 2.39	PLN 1.57	PLN 1.99	+15.8%	6.2M	246
2004	PLN 1.38	PLN 2.62	PLN 1.36	PLN 1.72	+25.0%	14.9M	251
2003	PLN 0.5846	PLN 1.79	PLN 0.4287	PLN 1.38	+135.6%	5.1M	251
2002	PLN 0.6431	PLN 0.6821	PLN 0.3118	PLN 0.5846	-9.1%	528.6K	243
2001	PLN 1.26	PLN 1.26	PLN 0.4547	PLN 0.6431	-49.0%	589.5K	245
2000	PLN 1.24	PLN 1.27	PLN 1.20	PLN 1.26	n/a	63.3K	31

COG monthly closes, last 12 months

Month	Month end close	Change
November 2026	PLN 4.13	-14.3%
October 2026	PLN 4.82	-13.3%
September 2026	PLN 5.56	-3.3%
August 2026	PLN 5.75	-10.5%
July 2026	PLN 6.43	+13.7%
June 2026	PLN 5.65	-12.7%
May 2026	PLN 6.47	+27.0%
April 2026	PLN 5.09	+11.7%
March 2026	PLN 4.56	-9.2%
February 2026	PLN 5.02	-0.8%
January 2026	PLN 5.06	-1.2%
December 2025	PLN 5.12	-5.2%

About the COG data

Daily bars. 6,547 sessions from Nov 17, 2000 to Nov 13, 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 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 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 17, 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/gpw%3ACOG/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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