ACLS
Axcelis Technologies IncCompany with tickers: ACLS
CIK
1113232
CUSIP
054540208
Shares Outstanding
30,733,897
13F Activity (30d)
205 filings
201 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 | 1,638,710 | 702,486 | 2,341,196 | 42.9% |
| 2026-04-27 | 924,613 | 376,138 | 1,300,751 | 49.9% |
| 2026-04-20 | 1,522,541 | 543,913 | 2,066,454 | 47.9% |
| 2026-04-13 | 809,084 | 402,813 | 1,211,897 | 47.3% |
| 2026-04-06 | 845,663 | 454,627 | 1,300,290 | 43.9% |
| 2026-03-30 | 555,482 | 336,290 | 891,772 | 39.9% |
| 2026-03-23 | 1,195,822 | 544,314 | 1,740,136 | 38.6% |
| 2026-03-16 | 742,747 | 465,003 | 1,207,750 | 34.4% |
| 2026-03-09 | 916,354 | 254,143 | 1,170,497 | 37.4% |
| 2026-03-02 | 1,132,130 | 410,325 | 1,542,455 | 36.3% |
| 2026-02-23 | 1,458,204 | 411,353 | 1,869,557 | 45.1% |
| 2026-02-16 | 2,860,549 | 1,270,476 | 4,131,025 | 42.4% |
| 2026-02-09 | 1,008,638 | 381,125 | 1,389,763 | 38.6% |
| 2026-02-02 | 1,440,146 | 364,217 | 1,804,363 | 42.5% |
| 2026-01-26 | 752,089 | 292,993 | 1,045,082 | 42.7% |
| 2026-01-19 | 586,238 | 272,026 | 858,264 | 41.3% |
| 2026-01-12 | 863,424 | 409,878 | 1,273,302 | 45.3% |
| 2026-01-05 | 923,061 | 598,343 | 1,521,404 | 44.0% |
| 2025-12-29 | 234,721 | 162,779 | 397,500 | 37.7% |
| 2025-12-22 | 276,598 | 132,826 | 409,424 | 40.1% |
| 2025-12-15 | 744,985 | 395,696 | 1,140,681 | 36.3% |
| 2025-12-08 | 1,097,423 | 373,091 | 1,470,514 | 46.0% |
| 2025-12-01 | 764,734 | 410,166 | 1,174,900 | 44.9% |
| 2025-11-24 | 391,629 | 217,810 | 609,439 | 35.6% |
| 2025-11-17 | 717,211 | 298,823 | 1,016,034 | 39.8% |
| 2025-11-10 | 905,842 | 271,767 | 1,177,609 | 40.1% |
| 2025-11-03 | 1,384,287 | 583,986 | 1,968,273 | 40.5% |
| 2025-10-27 | 878,580 | 459,533 | 1,338,113 | 44.6% |
| 2025-10-20 | 697,311 | 316,383 | 1,013,694 | 43.7% |
| 2025-10-13 | 980,325 | 321,989 | 1,302,314 | 41.1% |
| 2025-10-06 | 1,334,820 | 797,929 | 2,132,749 | 45.7% |
| 2025-09-29 | 1,585,803 | 625,833 | 2,211,636 | 41.6% |
| 2025-09-22 | 778,870 | 413,503 | 1,192,373 | 47.9% |
| 2025-09-15 | 915,543 | 475,701 | 1,391,244 | 40.6% |
| 2025-09-08 | 478,747 | 271,249 | 749,996 | 40.3% |
| 2025-09-01 | 362,331 | 319,029 | 681,360 | 35.9% |
| 2025-08-25 | 522,080 | 572,471 | 1,094,551 | 48.9% |
| 2025-08-18 | 505,410 | 253,629 | 759,039 | 40.5% |
| 2025-08-11 | 809,039 | 300,935 | 1,109,974 | 40.0% |
| 2025-08-04 | 1,107,671 | 1,016,777 | 2,124,448 | 48.5% |
| 2025-07-28 | 855,258 | 328,841 | 1,184,099 | 43.5% |
| 2025-07-21 | 656,005 | 253,620 | 909,625 | 37.5% |
| 2025-07-14 | 454,687 | 196,992 | 651,679 | 36.8% |
| 2025-07-07 | 377,916 | 332,930 | 710,846 | 36.6% |
| 2025-06-30 | 463,025 | 202,259 | 665,284 | 39.6% |
| 2025-06-23 | 639,089 | 1,085,125 | 1,724,214 | 51.1% |
| 2025-06-16 | 478,969 | 309,371 | 788,340 | 38.3% |
| 2025-06-09 | 1,482,681 | 592,276 | 2,074,957 | 41.7% |
| 2025-06-02 | 762,200 | 357,249 | 1,119,449 | 43.1% |
| 2025-05-26 | 691,170 | 169,853 | 861,023 | 41.0% |
Showing 1–50 of 231 weeks