NYSE · KOP · stock
Koppers Holdings Inc. (KOP) stock price history
Every NYSE trading session of Koppers Holdings Inc. from Feb 1, 2006 to Sep 28, 2026: 5,196 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 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.
KOP adjusted close, 2006 to 2026
- $55.84
- All time high, 2024
- $53.00
- 52 week high, $24.82 low
- 5,196
- Daily sessions since 2006
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2006 to 2026 series and minute bars.
KOP key facts
- Koppers Holdings Inc. (KOP) closed at $46.17 on Sep 28, 2026 on NYSE.
- KOP's all time high close is $55.84, set on Feb 28, 2024; its all time low close is $7.73 on Mar 9, 2009.
- KOP's 52 week range is $24.82 to $53.00.
- KOP returned +63.7% over the year to Sep 28, 2026 and +48.6% over five years.
- Over ten years KOP returned +49%, +4.0% a year compounded.
- KOP's deepest drawdown was -83.7% from Dec 26, 2017 to Apr 3, 2020.
- DataCedar holds 5,196 daily sessions of KOP history from Feb 1, 2006 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
KOP price chart, 2006 to 2026
KOP returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -0.8% |
| 3 months | +2.3% |
| 6 months | +22.0% |
| Year to date | +69.6% |
| 1 year | +63.7% |
| 3 years | +17.3% |
| 5 years | +48.6% |
| 10 years | +48.6% |
| Since Feb 1, 2006 | +291.7% |
| Compound annual growth, 20.7 years | +6.8% |
KOP records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $55.84 on Feb 28, 2024
- All time low close
- $7.73 on Mar 9, 2009
- 52 week high
- $53.00 on Aug 6, 2026
- 52 week low
- $24.82 on Nov 7, 2025
- Deepest drawdown
- -83.7% from Dec 26, 2017 to Apr 3, 2020, recovered Dec 26, 2023
- Best single session
- +30.7% on Apr 8, 2020
- Worst single session
- -23.4% on Nov 8, 2018
- Volatility, 1 year annualised
- 34.8%
- Sessions closing higher, 1 year
- 56%
- Growth of 1 since 2006
- 3.9×
- Best calendar year
- 2019, +124%
- Worst calendar year
- 2018, -67%
KOP 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. 2006 starts on Feb 1, 2006; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $26.92 | $53.00 | $26.40 | $46.17 | +71.3% | 34.7M | 185 |
| 2025 | $32.31 | $35.26 | $22.70 | $26.96 | -15.5% | 39.1M | 250 |
| 2024 | $49.46 | $56.98 | $30.18 | $31.91 | -36.3% | 37M | 252 |
| 2023 | $27.68 | $51.10 | $27.50 | $50.12 | +82.8% | 25.1M | 250 |
| 2022 | $30.38 | $32.50 | $19.51 | $27.41 | -9.2% | 26.3M | 251 |
| 2021 | $30.29 | $38.05 | $26.93 | $30.20 | +0.4% | 30M | 252 |
| 2020 | $37.36 | $37.49 | $7.96 | $30.07 | -18.5% | 50.4M | 253 |
| 2019 | $16.11 | $43.18 | $15.93 | $36.88 | +124.3% | 36.1M | 252 |
| 2018 | $49.16 | $49.50 | $14.47 | $16.44 | -66.5% | 42.9M | 251 |
| 2017 | $38.79 | $49.98 | $32.71 | $49.11 | +26.3% | 30.4M | 251 |
| 2016 | $17.43 | $41.20 | $13.10 | $38.88 | +120.8% | 32.7M | 252 |
| 2015 | $25.06 | $26.44 | $15.23 | $17.61 | -29.8% | 52.8M | 252 |
| 2014 | $42.68 | $43.07 | $21.73 | $25.07 | -41.6% | 29.9M | 252 |
| 2013 | $36.05 | $46.64 | $32.16 | $42.91 | +22.8% | 27.5M | 252 |
| 2012 | $31.86 | $36.20 | $26.44 | $34.95 | +14.1% | 25.6M | 250 |
| 2011 | $31.41 | $40.35 | $20.89 | $30.62 | -1.6% | 35.4M | 252 |
| 2010 | $26.23 | $31.72 | $17.07 | $31.12 | +21.3% | 35.2M | 252 |
| 2009 | $17.56 | $28.44 | $7.63 | $25.65 | +46.3% | 57.2M | 252 |
| 2008 | $34.16 | $41.26 | $10.22 | $17.54 | -48.6% | 73.2M | 253 |
| 2007 | $20.10 | $36.86 | $17.97 | $34.12 | +69.5% | 54.6M | 251 |
| 2006 | $10.93 | $20.16 | $10.85 | $20.13 | n/a | 34.3M | 231 |
KOP monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $46.17 | +0.7% |
| August 2026 | $45.87 | -6.4% |
| July 2026 | $49.02 | +9.2% |
| June 2026 | $44.90 | +10.0% |
| May 2026 | $40.80 | +0.1% |
| April 2026 | $40.74 | +5.6% |
| March 2026 | $38.60 | +2.6% |
| February 2026 | $37.63 | +28.3% |
| January 2026 | $29.33 | +8.8% |
| December 2025 | $26.96 | -8.7% |
| November 2025 | $29.54 | +5.4% |
| October 2025 | $28.02 | +0.8% |
About the KOP data
Daily bars. 5,196 sessions from Feb 1, 2006 to Sep 28, 2026, one row per NYSE 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 Jul 13, 2026 forward, most recent session Sep 25, 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 NYSE trading days; minute timestamps are UTC. Prices are in USD. 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 1, 2006, 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/KOP/bars?timeframe=1Day&adjustment=all&limit=50000" \
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Common questions
KOP share price history
