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KOP · Koppers Holdings Inc. · Off Exchange

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$46.35 +0.00 (+0.00%) At close · Sep 11
S&P 600 member Russell 2000 member Rebalance outlook locked
Market Cap
$876.55M
Shares
18.91M

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-08-03 262,931 126,593 389,524 32.3%
2026-07-27 140,191 82,357 222,548 34.5%
2026-07-20 174,876 90,482 265,358 33.3%
2026-07-13 237,256 73,715 310,971 39.9%
2026-07-06 209,012 87,995 297,007 38.5%
2026-06-29 169,870 74,306 244,176 36.8%
2026-06-22 202,359 96,175 298,534 28.1%
2026-06-15 171,676 79,535 251,211 27.7%
2026-06-08 172,611 62,230 234,841 30.8%
2026-06-01 246,328 89,568 335,896 37.0%
2026-05-25 138,955 66,790 205,745 31.5%
2026-05-18 267,982 77,130 345,112 40.1%
2026-05-11 476,146 102,797 578,943 39.2%
2026-05-04 240,263 111,535 351,798 39.8%
2026-04-27 165,024 100,505 265,529 34.5%
2026-04-20 97,742 72,390 170,132 28.2%
2026-04-13 134,069 45,922 179,991 28.6%
2026-04-06 241,497 59,297 300,794 35.3%
2026-03-30 237,760 71,329 309,089 38.0%
2026-03-23 217,064 110,545 327,609 33.6%
2026-03-16 315,949 170,679 486,628 20.6%
2026-03-09 358,095 100,051 458,146 29.3%
2026-03-02 369,997 151,349 521,346 35.6%
2026-02-23 221,519 97,965 319,484 34.9%
2026-02-16 154,945 70,708 225,653 35.7%
2026-02-09 179,280 121,358 300,638 34.3%
2026-02-02 171,084 101,265 272,349 32.2%
2026-01-26 108,683 70,025 178,708 31.2%
2026-01-19 111,814 44,966 156,780 34.1%
2026-01-12 132,147 113,910 246,057 38.6%
2026-01-05 214,888 61,171 276,059 35.4%
2025-12-29 114,747 57,154 171,901 34.7%
2025-12-22 110,331 44,751 155,082 35.5%
2025-12-15 181,991 126,490 308,481 33.7%
2025-12-08 167,954 124,932 292,886 37.9%
2025-12-01 136,935 73,711 210,646 38.2%
2025-11-24 148,147 81,270 229,417 35.2%
2025-11-17 174,809 64,898 239,707 30.2%
2025-11-10 274,833 69,261 344,094 34.0%
2025-11-03 231,518 101,016 332,534 37.8%
2025-10-27 267,574 54,085 321,659 38.5%
2025-10-20 158,467 67,329 225,796 37.1%
2025-10-13 165,113 56,566 221,679 37.5%
2025-10-06 242,197 69,347 311,544 38.2%
2025-09-29 134,297 76,075 210,372 30.3%
2025-09-22 131,550 80,867 212,417 26.0%
2025-09-15 193,120 81,217 274,337 19.9%
Showing 1–47 of 47 weeks
Key facts CIK 1315257 CUSIP 50060P106 13F (30d) 60 filings 60 filers Visit website Investor relations