Stocks / Unknown

TAC

TransAlta Corporation
$11.951d +3.9%5d -3.2%settled close · 2026-09-16
Mkt cap $3.8B (3/25)β 0.8152w $11.50–14.52Shares 296.8MNYSE since 1975Emp. 1,350transalta.com
Who’s talkingIdea Scout · free

Who’s talking about TAC

No tracked investor commentary on TAC yet — the corpus grows weekly.
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The options tape

Notable options days

Sessions in the last 120 where TAC’s settled options volume ran ≥ 2× its trailing 20-session baseline, or delta-dollar flow ran ≥ 2.5× — 7 of 120 sessions qualified.

The qualifying dates are the free record. Close, flow, call/LEAPS mix and the 20-session outcome — for every session below — are Brief subscriber content.
DateCloseRVOL Δ$ flow ($M)Call % LEAPS %+20 sess.
2026-09-16
2026-08-12
2026-07-29
2026-07-20
2026-07-10
2026-07-08
2026-06-04
+20 sess. = raw price change over the following 20 sessions — not market-adjusted; the tape tells you where to look, not what happens next.
Today’s tape on TAC is in this morning’s Brief. Get The Brief — $20/mo →