CLH
Clean Harbors IncCompany with tickers: CLH
Market Cap
$15.79B
Shares Outstanding
52,846,032
CIK
822818
CUSIP
184496107
13F Activity (30d)
10 filings
5 filers
Website
Visit website
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.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-06-01 | 708,407 | 194,971 | 903,378 | 45.3% |
| 2026-05-25 | 808,604 | 135,168 | 943,772 | 65.7% |
| 2026-05-18 | 867,275 | 381,399 | 1,248,674 | 68.8% |
| 2026-05-11 | 748,883 | 328,266 | 1,077,149 | 58.0% |
| 2026-05-04 | 2,064,400 | 418,181 | 2,482,581 | 46.5% |
| 2026-04-27 | 534,228 | 193,036 | 727,264 | 54.4% |
| 2026-04-20 | 536,363 | 155,481 | 691,844 | 49.5% |
| 2026-04-13 | 990,959 | 319,906 | 1,310,865 | 51.7% |
| 2026-04-06 | 870,038 | 277,134 | 1,147,172 | 43.1% |
| 2026-03-30 | 605,481 | 132,327 | 737,808 | 39.3% |
| 2026-03-23 | 643,465 | 434,528 | 1,077,993 | 48.3% |
| 2026-03-16 | 1,009,247 | 273,176 | 1,282,423 | 42.0% |
| 2026-03-09 | 825,931 | 145,979 | 971,910 | 39.5% |
| 2026-03-02 | 754,071 | 274,415 | 1,028,486 | 38.7% |
| 2026-02-23 | 747,417 | 287,070 | 1,034,487 | 37.4% |
| 2026-02-16 | 1,155,414 | 374,653 | 1,530,067 | 41.2% |
| 2026-02-09 | 777,742 | 311,857 | 1,089,599 | 44.7% |
| 2026-02-02 | 819,103 | 172,997 | 992,100 | 41.6% |
| 2026-01-26 | 589,858 | 155,854 | 745,712 | 42.5% |
| 2026-01-19 | 521,248 | 179,796 | 701,044 | 42.0% |
| 2026-01-12 | 870,176 | 406,394 | 1,276,570 | 46.4% |
| 2026-01-05 | 791,304 | 155,924 | 947,228 | 44.8% |
| 2025-12-29 | 272,984 | 138,125 | 411,109 | 40.0% |
| 2025-12-22 | 284,570 | 113,032 | 397,602 | 37.0% |
| 2025-12-15 | 515,949 | 335,834 | 851,783 | 38.2% |
| 2025-12-08 | 709,805 | 180,003 | 889,808 | 41.9% |
| 2025-12-01 | 1,116,685 | 240,188 | 1,356,873 | 38.2% |
| 2025-11-24 | 761,808 | 233,916 | 995,724 | 42.5% |
| 2025-11-17 | 1,025,271 | 408,237 | 1,433,508 | 41.3% |
| 2025-11-10 | 892,564 | 238,521 | 1,131,085 | 43.3% |
| 2025-11-03 | 1,046,435 | 234,467 | 1,280,902 | 44.9% |
| 2025-10-27 | 2,071,632 | 454,848 | 2,526,480 | 40.1% |
| 2025-10-20 | 983,841 | 176,608 | 1,160,449 | 46.9% |
| 2025-10-13 | 1,062,422 | 223,890 | 1,286,312 | 44.5% |
| 2025-10-06 | 863,899 | 186,881 | 1,050,780 | 34.4% |
| 2025-09-29 | 581,057 | 126,183 | 707,240 | 37.2% |
| 2025-09-22 | 501,650 | 117,318 | 618,968 | 39.1% |
| 2025-09-15 | 586,044 | 105,104 | 691,148 | 30.1% |
| 2025-09-08 | 637,328 | 91,660 | 728,988 | 43.6% |
| 2025-09-01 | 661,130 | 197,198 | 858,328 | 53.8% |
| 2025-08-25 | 445,691 | 115,896 | 561,587 | 38.6% |
| 2025-08-18 | 349,194 | 115,853 | 465,047 | 38.8% |
| 2025-08-11 | 582,682 | 176,457 | 759,139 | 39.8% |
| 2025-08-04 | 635,133 | 198,206 | 833,339 | 38.8% |
| 2025-07-28 | 903,403 | 203,620 | 1,107,023 | 36.5% |
| 2025-07-21 | 509,979 | 82,311 | 592,290 | 36.1% |
| 2025-07-14 | 422,844 | 149,314 | 572,158 | 31.9% |
| 2025-07-07 | 419,459 | 199,767 | 619,226 | 37.7% |
| 2025-06-30 | 496,160 | 179,874 | 676,034 | 42.1% |
Showing 1–49 of 49 weeks