Skip to main content
TAC logo

TAC · Transalta Corp

Track TAC — free
$12.71 -0.08 (-0.63%)
Market Cap
$4.05B
Shares
316.30M

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
2026-07-13 881,423 2,011,067 2,892,490 49.2%
2026-07-06 1,089,975 2,315,530 3,405,505 43.4%
2026-06-29 879,408 3,829,533 4,708,941 59.5%
2026-06-22 858,151 2,014,505 2,872,656 45.7%
2026-06-15 928,969 1,573,472 2,502,441 39.2%
2026-06-08 1,355,894 8,106,416 9,462,310 63.2%
2026-06-01 1,880,860 4,723,665 6,604,525 50.4%
2026-05-25 579,410 555,614 1,135,024 33.3%
2026-05-18 708,218 4,535,729 5,243,947 62.2%
2026-05-11 597,046 1,598,475 2,195,521 47.3%
2026-05-04 1,086,817 2,604,014 3,690,831 47.2%
2026-04-27 1,167,686 2,512,965 3,680,651 47.5%
2026-04-20 753,166 1,390,630 2,143,796 41.2%
2026-04-13 831,317 1,539,314 2,370,631 45.1%
2026-04-06 518,082 1,487,844 2,005,926 43.0%
2026-03-30 830,061 871,240 1,701,301 33.4%
2026-03-23 1,485,100 2,991,481 4,476,581 44.4%
2026-03-16 1,408,779 3,417,169 4,825,948 52.1%
2026-03-09 1,282,295 3,507,268 4,789,563 55.4%
2026-03-02 1,039,512 1,669,973 2,709,485 37.7%
2026-02-23 1,643,427 2,013,308 3,656,735 39.6%
2026-02-16 457,286 1,697,855 2,155,141 51.8%
2026-02-09 891,438 1,146,425 2,037,863 38.0%
2026-02-02 1,510,366 2,194,348 3,704,714 42.6%
2026-01-26 1,883,239 2,775,855 4,659,094 38.8%
2026-01-19 916,407 2,630,560 3,546,967 45.4%
2026-01-12 876,270 2,185,292 3,061,562 43.4%
2026-01-05 762,734 1,548,527 2,311,261 39.6%
2025-12-29 645,839 838,598 1,484,437 35.6%
2025-12-22 729,834 696,216 1,426,050 38.1%
2025-12-15 1,510,132 1,991,091 3,501,223 39.3%
2025-12-08 819,707 2,227,942 3,047,649 42.3%
2025-12-01 587,879 1,453,494 2,041,373 39.4%
2025-11-24 726,013 1,216,468 1,942,481 37.5%
2025-11-17 1,152,754 3,056,492 4,209,246 44.7%
2025-11-10 1,397,201 2,794,062 4,191,263 42.0%
2025-11-03 2,717,968 2,943,904 5,661,872 29.7%
2025-10-27 986,319 1,739,537 2,725,856 34.6%
2025-10-20 1,134,122 2,761,639 3,895,761 38.5%
2025-10-13 2,613,676 5,118,272 7,731,948 41.0%
2025-10-06 1,225,220 4,018,058 5,243,278 44.5%
2025-09-29 908,618 3,928,626 4,837,244 50.5%
2025-09-22 565,626 1,251,164 1,816,790 41.6%
2025-09-15 655,154 2,511,479 3,166,633 48.5%
2025-09-08 492,040 1,572,526 2,064,566 46.9%
2025-09-01 267,136 1,829,994 2,097,130 60.8%
2025-08-25 334,613 2,192,953 2,527,566 53.1%
2025-08-18 455,240 2,470,372 2,925,612 53.8%
Showing 1–48 of 48 weeks
Key facts CIK 1144800 CUSIP 89346D107 13F (30d) 168 filings 168 filers Visit website Investor relations