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ONTO · Onto Innovation Inc. · Off Exchange

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$268.92 -9.48 (-3.41%) At close · Sep 10
S&P 400 member Russell 1000 member Rebalance outlook locked
Market Cap
$13.66B
Shares
49.07M

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
2026-08-03 2,065,977 1,080,562 3,146,539 46.2%
2026-07-27 2,312,273 843,051 3,155,324 42.3%
2026-07-20 1,197,032 774,434 1,971,466 49.7%
2026-07-13 1,784,830 842,991 2,627,821 46.3%
2026-07-06 2,057,913 1,031,645 3,089,558 47.4%
2026-06-29 2,120,739 1,636,214 3,756,953 49.1%
2026-06-22 2,214,369 1,318,171 3,532,540 44.4%
2026-06-15 1,078,458 1,322,713 2,401,171 45.1%
2026-06-08 1,829,640 1,393,558 3,223,198 46.6%
2026-06-01 1,622,640 1,173,895 2,796,535 47.4%
2026-05-25 874,349 1,225,416 2,099,765 49.6%
2026-05-18 1,784,996 4,460,906 6,245,902 63.6%
2026-05-11 1,109,389 793,048 1,902,437 40.7%
2026-05-04 1,898,578 885,589 2,784,167 47.5%
2026-04-27 1,237,819 660,463 1,898,282 45.3%
2026-04-20 1,465,974 841,016 2,306,990 46.6%
2026-04-13 1,527,016 806,576 2,333,592 49.1%
2026-04-06 862,720 571,702 1,434,422 40.8%
2026-03-30 911,038 416,329 1,327,367 44.5%
2026-03-23 930,899 380,657 1,311,556 41.2%
2026-03-16 1,005,443 521,583 1,527,026 35.9%
2026-03-09 1,012,605 435,677 1,448,282 40.5%
2026-03-02 1,305,506 457,453 1,762,959 41.7%
2026-02-23 1,553,747 845,301 2,399,048 44.3%
2026-02-16 1,882,968 744,896 2,627,864 44.6%
2026-02-09 1,348,714 1,007,594 2,356,308 45.5%
2026-02-02 1,419,325 641,598 2,060,923 44.2%
2026-01-26 1,353,983 564,734 1,918,717 42.9%
2026-01-19 971,472 538,348 1,509,820 45.3%
2026-01-12 1,813,611 688,849 2,502,460 47.9%
2026-01-05 1,235,493 722,401 1,957,894 48.2%
2025-12-29 538,535 487,752 1,026,287 45.6%
2025-12-22 432,137 249,864 682,001 44.5%
2025-12-15 969,071 561,935 1,531,006 35.5%
2025-12-08 1,743,352 717,480 2,460,832 50.5%
2025-12-01 1,205,179 457,639 1,662,818 40.5%
2025-11-24 575,650 280,665 856,315 39.5%
2025-11-17 1,118,300 580,649 1,698,949 42.5%
2025-11-10 1,263,224 551,432 1,814,656 43.9%
2025-11-03 2,270,152 782,860 3,053,012 44.4%
2025-10-27 1,411,686 647,206 2,058,892 46.4%
2025-10-20 1,115,408 502,857 1,618,265 42.6%
2025-10-13 1,578,938 511,092 2,090,030 39.8%
2025-10-06 2,320,132 994,181 3,314,313 47.5%
2025-09-29 2,085,454 1,268,957 3,354,411 43.4%
2025-09-22 2,645,945 2,190,315 4,836,260 49.3%
2025-09-15 2,779,682 1,559,500 4,339,182 33.5%
Showing 1–47 of 47 weeks
Key facts CIK 704532 CUSIP 683344105 13F (30d) 308 filings 307 filers Visit website Investor relations