NYSE · KOP

Koppers Holdings Inc.

Basic Materials · Chemicals - Specialty

$45.33

Down-$0.85 (-1.84%)

Updated Sep 21, 2026, 12:21 AM

SID Score

5.2/10

Composite research score

Smart Money

—

Institutional and insider signal

Price performance

KOP price history

1M range · 19 trading sessions · Daily adjusted prices

Daily close

View OHLC price history

KOP OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Sep 18, 2026	$45.98	$45.98	$44.83	$45.33	470.8K
Sep 17, 2026	$47.42	$47.42	$45.83	$46.18	179.6K
Sep 16, 2026	$45.99	$47.64	$45.69	$46.72	314.68K
Sep 15, 2026	$46.12	$46.40	$45.43	$45.79	155.14K
Sep 14, 2026	$45.92	$46.20	$45.27	$46.00	115.95K
Sep 11, 2026	$46.62	$47.00	$46.1895	$46.35	115.1K
Sep 10, 2026	$45.96	$46.94	$45.71	$46.35	139.46K
Sep 9, 2026	$47.20	$47.29	$45.735	$46.06	138.57K
Sep 8, 2026	$47.94	$47.94	$46.73	$47.12	179.24K
Sep 4, 2026	$46.57	$47.83	$46.22	$47.78	174.22K
Sep 3, 2026	$47.25	$47.43	$46.16	$46.86	170.09K
Sep 2, 2026	$45.84	$47.94	$45.4201	$46.72	205.51K
Sep 1, 2026	$45.28	$46.08	$44.49	$45.93	227.32K
Aug 31, 2026	$47.10	$47.605	$45.76	$45.87	160.84K
Aug 28, 2026	$46.74	$47.00	$46.00	$46.56	117.71K
Aug 27, 2026	$46.05	$46.6299	$45.3465	$46.32	112.91K
Aug 26, 2026	$46.56	$47.0899	$45.92	$46.34	149.23K
Aug 25, 2026	$45.87	$46.6193	$44.81	$46.13	108.67K
Aug 24, 2026	$45.43	$46.00	$44.8935	$45.83	145.67K