NSSC · Napco Security Technologies, Inc · Off Exchange
$36.22
+0.05 (+0.14%)
At close · Oct 5
Return incl. dividend (before tax)
Market Cap
$1.28B
Shares
35.77M
Volume · Oct 5
413.11K
Avg daily vol (3M)
376.57K
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 | 573,598 | 640,431 | 1,214,029 | 48.7% |
| 2026-08-24 | 1,132,566 | 1,087,622 | 2,220,188 | 42.4% |
| 2026-08-17 | 344,540 | 349,033 | 693,573 | 48.8% |
| 2026-08-10 | 288,668 | 141,804 | 430,472 | 40.9% |
| 2026-08-03 | 331,559 | 208,472 | 540,031 | 39.5% |
| 2026-07-27 | 378,590 | 151,017 | 529,607 | 38.4% |
| 2026-07-20 | 276,472 | 167,059 | 443,531 | 35.8% |
| 2026-07-13 | 331,036 | 211,614 | 542,650 | 40.4% |
| 2026-07-06 | 510,698 | 311,228 | 821,926 | 40.2% |
| 2026-06-29 | 276,656 | 133,124 | 409,780 | 37.0% |
| 2026-06-22 | 721,933 | 406,672 | 1,128,605 | 36.5% |
| 2026-06-15 | 542,935 | 799,840 | 1,342,775 | 38.2% |
| 2026-06-08 | 449,665 | 264,208 | 713,873 | 38.2% |
| 2026-06-01 | 476,461 | 274,521 | 750,982 | 39.8% |
| 2026-05-25 | 450,497 | 317,126 | 767,623 | 43.2% |
| 2026-05-18 | 657,691 | 370,953 | 1,028,644 | 46.8% |
| 2026-05-11 | 473,670 | 331,298 | 804,968 | 40.2% |
| 2026-05-04 | 751,067 | 376,360 | 1,127,427 | 37.5% |
| 2026-04-27 | 362,236 | 165,734 | 527,970 | 37.8% |
| 2026-04-20 | 314,374 | 174,263 | 488,637 | 37.9% |
| 2026-04-13 | 347,944 | 217,009 | 564,953 | 39.3% |
| 2026-04-06 | 408,295 | 206,076 | 614,371 | 32.4% |
| 2026-03-30 | 298,055 | 130,847 | 428,902 | 32.2% |
| 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% |
Showing 1–48 of 48 weeks