NSSC
Napco Security Technologies, IncCompany with tickers: NSSC
CIK
69633
CUSIP
630402105
Shares Outstanding
35,727,337
Website
https://www.napcosecurity.com
13F Activity (30d)
137 filings
132 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 | 751,067 | 376,360 | 1,127,427 | 53.3% |
| 2026-04-27 | 362,236 | 165,734 | 527,970 | 42.6% |
| 2026-04-20 | 314,374 | 174,263 | 488,637 | 50.3% |
| 2026-04-13 | 347,944 | 217,009 | 564,953 | 41.4% |
| 2026-04-06 | 408,295 | 206,076 | 614,371 | 32.7% |
| 2026-03-30 | 298,055 | 130,847 | 428,902 | 40.5% |
| 2026-03-23 | 599,868 | 494,668 | 1,094,536 | 42.4% |
| 2026-03-16 | 977,413 | 310,382 | 1,287,795 | 31.7% |
| 2026-03-09 | 1,475,518 | 2,519,513 | 3,995,031 | 38.1% |
| 2026-03-02 | 779,549 | 417,762 | 1,197,311 | 40.2% |
| 2026-02-23 | 500,194 | 740,849 | 1,241,043 | 48.8% |
| 2026-02-16 | 869,032 | 311,142 | 1,180,174 | 49.3% |
| 2026-02-09 | 1,164,256 | 281,528 | 1,445,784 | 45.1% |
| 2026-02-02 | 1,041,390 | 431,668 | 1,473,058 | 38.8% |
| 2026-01-26 | 498,411 | 322,654 | 821,065 | 39.9% |
| 2026-01-19 | 470,787 | 184,434 | 655,221 | 40.5% |
| 2026-01-12 | 563,737 | 191,006 | 754,743 | 40.8% |
| 2026-01-05 | 330,857 | 147,926 | 478,783 | 37.0% |
| 2025-12-29 | 194,157 | 84,593 | 278,750 | 36.5% |
| 2025-12-22 | 260,266 | 120,253 | 380,519 | 40.8% |
| 2025-12-15 | 521,739 | 575,138 | 1,096,877 | 43.1% |
| 2025-12-08 | 382,635 | 453,300 | 835,935 | 41.3% |
| 2025-12-01 | 536,587 | 532,775 | 1,069,362 | 42.3% |
| 2025-11-24 | 279,756 | 91,409 | 371,165 | 39.7% |
| 2025-11-17 | 481,464 | 159,441 | 640,905 | 34.0% |
| 2025-11-10 | 312,282 | 121,439 | 433,721 | 39.5% |
| 2025-11-03 | 703,647 | 296,531 | 1,000,178 | 39.3% |
| 2025-10-27 | 303,232 | 156,149 | 459,381 | 36.7% |
| 2025-10-20 | 267,297 | 140,554 | 407,851 | 33.8% |
| 2025-10-13 | 258,739 | 164,690 | 423,429 | 36.7% |
| 2025-10-06 | 321,308 | 235,539 | 556,847 | 34.5% |
| 2025-09-29 | 302,583 | 139,907 | 442,490 | 36.6% |
| 2025-09-22 | 427,813 | 189,110 | 616,923 | 40.4% |
| 2025-09-15 | 746,633 | 695,758 | 1,442,391 | 34.6% |
| 2025-09-08 | 426,751 | 240,365 | 667,116 | 38.9% |
| 2025-09-01 | 640,531 | 261,725 | 902,256 | 43.8% |
| 2025-08-25 | 889,511 | 817,209 | 1,706,720 | 41.5% |
| 2025-08-18 | 292,001 | 151,922 | 443,923 | 35.6% |
| 2025-08-11 | 237,340 | 146,309 | 383,649 | 31.9% |
| 2025-08-04 | 336,836 | 174,165 | 511,001 | 45.5% |
| 2025-07-28 | 442,312 | 140,134 | 582,446 | 44.4% |
| 2025-07-21 | 276,110 | 228,405 | 504,515 | 39.3% |
| 2025-07-14 | 211,448 | 142,124 | 353,572 | 33.5% |
| 2025-07-07 | 464,497 | 176,046 | 640,543 | 36.5% |
| 2025-06-30 | 184,402 | 144,045 | 328,447 | 43.0% |
| 2025-06-23 | 363,502 | 230,902 | 594,404 | 37.1% |
| 2025-06-16 | 310,839 | 172,841 | 483,680 | 36.9% |
Showing 1–47 of 47 weeks