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MKSI · Mks Inc · Off Exchange

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$274.30 +8.94 (+3.37%)
S&P 400 member Russell 1000 member Rebalance outlook locked
Market Cap
$17.64B
Shares
67.62M
Volume · Oct 1 780.29K Avg daily vol (3M) 1.37M

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.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-08-24 1,831,226 1,202,986 3,034,212 43.7%
2026-08-17 1,959,557 1,035,061 2,994,618 48.5%
2026-08-10 1,548,720 1,111,301 2,660,021 52.1%
2026-08-03 3,189,805 1,747,863 4,937,668 45.8%
2026-07-27 3,378,582 1,456,477 4,835,059 48.1%
2026-07-20 1,373,318 559,179 1,932,497 44.7%
2026-07-13 2,002,033 835,704 2,837,737 46.6%
2026-07-06 2,263,316 857,416 3,120,732 47.9%
2026-06-29 2,761,935 1,365,277 4,127,212 51.3%
2026-06-22 3,314,801 1,624,493 4,939,294 52.2%
2026-06-15 1,606,915 675,984 2,282,899 42.8%
2026-06-08 1,696,685 982,073 2,678,758 48.3%
2026-06-01 1,466,400 663,654 2,130,054 47.2%
2026-05-25 1,376,409 478,167 1,854,576 45.4%
2026-05-18 1,698,160 1,347,558 3,045,718 48.3%
2026-05-11 1,821,162 1,256,556 3,077,718 52.8%
2026-05-04 3,283,047 1,138,812 4,421,859 45.1%
2026-04-27 1,721,055 968,099 2,689,154 47.8%
2026-04-20 2,077,237 747,957 2,825,194 49.9%
2026-04-13 1,561,321 522,530 2,083,851 44.7%
2026-04-06 1,415,853 752,229 2,168,082 45.6%
2026-03-30 1,043,803 633,751 1,677,554 38.2%
2026-03-23 1,056,908 651,059 1,707,967 39.8%
2026-03-16 1,746,028 1,036,943 2,782,971 38.5%
2026-03-09 1,992,823 840,086 2,832,909 42.9%
2026-03-02 1,895,838 821,996 2,717,834 40.4%
2026-02-23 1,845,637 1,351,472 3,197,109 43.5%
2026-02-16 2,921,250 1,979,066 4,900,316 49.4%
2026-02-09 2,274,548 1,541,116 3,815,664 46.4%
2026-02-02 3,387,117 1,857,112 5,244,229 47.0%
2026-01-26 3,653,812 1,833,566 5,487,378 53.1%
2026-01-19 2,118,382 1,208,842 3,327,224 47.8%
2026-01-12 1,982,847 803,564 2,786,411 44.6%
2026-01-05 1,174,419 420,919 1,595,338 40.6%
2025-12-29 620,297 302,955 923,252 42.6%
2025-12-22 447,454 468,420 915,874 45.1%
2025-12-15 1,709,982 677,464 2,387,446 42.0%
2025-12-08 1,475,539 659,051 2,134,590 45.4%
2025-12-01 1,374,696 595,609 1,970,305 43.4%
2025-11-24 595,778 371,468 967,246 40.0%
2025-11-17 1,743,020 486,190 2,229,210 48.7%
2025-11-10 1,926,109 609,805 2,535,914 50.5%
2025-11-03 2,535,899 806,525 3,342,424 46.0%
2025-10-27 1,740,914 990,694 2,731,608 52.7%
2025-10-20 1,639,049 288,013 1,927,062 49.5%
2025-10-13 1,559,139 360,492 1,919,631 42.1%
2025-10-06 2,640,350 483,615 3,123,965 49.7%
Showing 1–47 of 47 weeks
Key facts CIK 1049502 CUSIP 55306N104 13F (30d) 13 filings 13 filers Visit website Investor relations