ALT · Altimmune, Inc. · Off Exchange
$2.66
-0.01 (-0.37%)
At close · Oct 6
Return incl. dividend (before tax)
Market Cap
$575.77M
Shares
194.52M
Volume · Oct 6
1.85M
Avg daily vol (3M)
4.14M
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 |
|---|---|---|---|---|
| 2026-08-31 | 2,961,936 | 6,596,045 | 9,557,981 | 49.1% |
| 2026-08-24 | 3,032,745 | 4,705,185 | 7,737,930 | 48.2% |
| 2026-08-17 | 3,729,109 | 10,599,950 | 14,329,059 | 50.8% |
| 2026-08-10 | 3,761,334 | 7,768,437 | 11,529,771 | 52.1% |
| 2026-08-03 | 4,222,631 | 7,086,055 | 11,308,686 | 46.2% |
| 2026-07-27 | 5,135,766 | 13,247,253 | 18,383,019 | 47.3% |
| 2026-07-20 | 1,640,980 | 3,572,917 | 5,213,897 | 50.0% |
| 2026-07-13 | 2,706,910 | 3,979,731 | 6,686,641 | 45.9% |
| 2026-07-06 | 2,870,909 | 5,702,875 | 8,573,784 | 46.7% |
| 2026-06-29 | 3,490,654 | 6,667,836 | 10,158,490 | 50.8% |
| 2026-06-22 | 3,483,196 | 10,600,423 | 14,083,619 | 42.2% |
| 2026-06-15 | 2,949,264 | 6,539,474 | 9,488,738 | 43.8% |
| 2026-06-08 | 2,961,263 | 4,193,766 | 7,155,029 | 50.6% |
| 2026-06-01 | 3,017,766 | 4,838,175 | 7,855,941 | 54.5% |
| 2026-05-25 | 1,625,010 | 3,906,117 | 5,531,127 | 49.1% |
| 2026-05-18 | 2,700,638 | 4,428,435 | 7,129,073 | 53.8% |
| 2026-05-11 | 2,445,373 | 4,969,752 | 7,415,125 | 54.4% |
| 2026-05-04 | 3,276,555 | 6,938,409 | 10,214,964 | 52.9% |
| 2026-04-27 | 5,430,214 | 8,584,314 | 14,014,528 | 53.3% |
| 2026-04-20 | 9,985,475 | 18,627,032 | 28,612,507 | 53.4% |
| 2026-04-13 | 3,025,881 | 3,174,076 | 6,199,957 | 53.3% |
| 2026-04-06 | 1,727,297 | 3,340,737 | 5,068,034 | 50.6% |
| 2026-03-30 | 1,380,213 | 4,145,036 | 5,525,249 | 49.1% |
| 2026-03-23 | 2,291,567 | 5,143,160 | 7,434,727 | 46.4% |
| 2026-03-16 | 2,681,973 | 8,239,990 | 10,921,963 | 45.8% |
| 2026-03-09 | 3,750,767 | 5,314,463 | 9,065,230 | 50.7% |
| 2026-03-02 | 3,700,607 | 6,553,830 | 10,254,437 | 49.7% |
| 2026-02-23 | 2,853,704 | 3,614,115 | 6,467,819 | 49.2% |
| 2026-02-16 | 2,818,179 | 3,356,219 | 6,174,398 | 50.9% |
| 2026-02-09 | 2,525,514 | 5,225,445 | 7,750,959 | 55.9% |
| 2026-02-02 | 3,774,638 | 7,544,890 | 11,319,528 | 53.6% |
| 2026-01-26 | 4,704,933 | 13,513,187 | 18,218,120 | 52.1% |
| 2026-01-19 | 3,102,830 | 15,109,483 | 18,212,313 | 56.7% |
| 2026-01-12 | 1,680,574 | 7,237,226 | 8,917,800 | 56.5% |
| 2026-01-05 | 4,553,846 | 21,851,002 | 26,404,848 | 56.3% |
| 2025-12-29 | 1,959,284 | 7,028,516 | 8,987,800 | 57.8% |
| 2025-12-22 | 2,382,775 | 6,353,400 | 8,736,175 | 53.5% |
| 2025-12-15 | 3,670,407 | 13,609,829 | 17,280,236 | 47.2% |
| 2025-12-08 | 2,302,352 | 9,069,462 | 11,371,814 | 49.7% |
| 2025-12-01 | 1,944,277 | 5,916,410 | 7,860,687 | 50.1% |
| 2025-11-24 | 1,668,116 | 4,688,368 | 6,356,484 | 50.1% |
| 2025-11-17 | 2,899,484 | 5,718,959 | 8,618,443 | 50.2% |
| 2025-11-10 | 2,673,444 | 6,267,050 | 8,940,494 | 54.3% |
| 2025-11-03 | 2,823,510 | 5,475,772 | 8,299,282 | 50.2% |
| 2025-10-27 | 1,925,752 | 4,984,204 | 6,909,956 | 51.4% |
| 2025-10-20 | 2,007,515 | 3,882,763 | 5,890,278 | 49.6% |
| 2025-10-13 | 1,932,814 | 4,523,147 | 6,455,961 | 52.3% |
| 2025-10-06 | 1,974,749 | 8,714,650 | 10,689,399 | 60.3% |
Showing 1–48 of 48 weeks