GHM
Graham CorpCompany with tickers: GHM
CIK
716314
CUSIP
384556106
Shares Outstanding
11,691,140
Website
https://www.grahamcorp.com
Investor Relations
https://ir.grahamcorp.com/
13F Activity (30d)
8 filings
7 filers
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 |
|---|---|---|---|---|
| 2026-05-04 | 194,359 | 87,415 | 281,774 | 36.9% |
| 2026-04-27 | 166,360 | 88,307 | 254,667 | 32.4% |
| 2026-04-20 | 91,387 | 93,565 | 184,952 | 39.9% |
| 2026-04-13 | 164,979 | 127,017 | 291,996 | 41.0% |
| 2026-04-06 | 112,155 | 117,426 | 229,581 | 36.3% |
| 2026-03-30 | 86,606 | 72,295 | 158,901 | 30.6% |
| 2026-03-23 | 120,584 | 88,523 | 209,107 | 36.9% |
| 2026-03-16 | 123,884 | 87,776 | 211,660 | 34.9% |
| 2026-03-09 | 149,865 | 75,716 | 225,581 | 37.5% |
| 2026-03-02 | 145,535 | 108,460 | 253,995 | 44.2% |
| 2026-02-23 | 130,727 | 104,873 | 235,600 | 43.4% |
| 2026-02-16 | 78,620 | 57,493 | 136,113 | 39.9% |
| 2026-02-09 | 163,061 | 140,479 | 303,540 | 43.7% |
| 2026-02-02 | 151,653 | 104,082 | 255,735 | 38.9% |
| 2026-01-26 | 163,607 | 103,917 | 267,524 | 43.8% |
| 2026-01-19 | 92,511 | 59,514 | 152,025 | 39.9% |
| 2026-01-12 | 119,027 | 63,361 | 182,388 | 42.5% |
| 2026-01-05 | 141,678 | 126,245 | 267,923 | 44.8% |
| 2025-12-29 | 108,277 | 47,081 | 155,358 | 32.8% |
| 2025-12-22 | 194,966 | 96,814 | 291,780 | 45.7% |
Showing 1–20 of 20 weeks