TransAlta Corporation (TAC)

Showing Closing Date Range from Aug 1 to Oct 30, 2026 compared to May 2 to Jul 31, 2026.

Compare Last 3 Months with Previous Period

Current Period Close
$12.98
Aug 01, 2026 - Oct 30, 2026
Previous Period Close
$12.50
May 02, 2026 - Jul 31, 2026
Net Comparison Delta
+$0.48 (+3.84%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(59 dates)
Current DateCurrent ClosePrevious DatePrevious CloseDelta (%)
Oct 30, 2026$12.98Jul 28, 2026$12.74+1.88%
Oct 29, 2026$13.21Jul 27, 2026$13.45-1.78%
Oct 28, 2026$13.07Jul 24, 2026$13.72-4.74%
Oct 27, 2026$12.87Jul 23, 2026$14.11-8.79%
Oct 26, 2026$12.27Jul 22, 2026$14.04-12.61%
Oct 23, 2026$12.22Jul 21, 2026$13.99-12.65%
Oct 22, 2026$12.51Jul 20, 2026$13.72-8.82%
Oct 21, 2026$13.34Jul 17, 2026$13.26+0.60%
Oct 20, 2026$12.97Jul 16, 2026$13.24-2.04%
Oct 19, 2026$13.00Jul 15, 2026$13.62-4.55%
Oct 16, 2026$12.85Jul 14, 2026$13.93-7.75%
Oct 15, 2026$12.66Jul 13, 2026$13.93-9.12%
Oct 14, 2026$12.66Jul 10, 2026$14.22-10.97%
Oct 13, 2026$13.22Jul 09, 2026$14.52-8.95%
Oct 12, 2026$13.00Jul 08, 2026$14.48-10.22%
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