TransAlta Corporation (TA.TO) TSX

Currency In CAD

TA.TO Historical Return

If you invested $1000 in TransAlta Corporation (TA.TO) 10 years ago, it would be worth $3,531.51 as of August 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,486.3, while $1000 invested 1 year ago would be worth $1,013.87. This corresponds to total returns of 253.15%, 48.63%, 1.39%, respectively, with annualized returns of 13.44%, 8.25%, 1.39%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

TA.TO Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
August 21, 2026	17.46	16.81	16.81	17.54	16.79	2.04M
August 20, 2026	17	17.39	17.39	17.69	17	2.7M
August 19, 2026	17.37	17.1	17.1	17.41	16.98	1.78M
August 18, 2026	17.51	17.36	17.36	17.6	17.28	1.4M
August 17, 2026	17.73	17.63	17.63	17.81	17.53	3.43M
August 14, 2026	17.55	17.77	17.77	17.88	17.48	1.17M
August 13, 2026	17.29	17.54	17.54	17.59	17.23	2.6M
August 12, 2026	17.2	17.27	17.27	17.64	17.15	3.37M
August 11, 2026	17.13	17.38	17.38	17.47	17.1	2.07M
August 10, 2026	17.25	17.1	17.1	17.39	17.03	2.14M
August 07, 2026	17.54	17.32	17.32	17.7	17.3	1.92M
August 06, 2026	17.69	17.48	17.48	17.85	17.39	2M
August 05, 2026	17.98	17.74	17.74	18.14	17.74	1.45M
August 04, 2026	17.56	17.99	17.99	18.08	17.32	2.25M
July 31, 2026	18	17.56	17.56	18.24	17.5	1.74M
July 30, 2026	17.69	18.04	18.04	18.1	17.62	1.45M
July 29, 2026	18	17.52	17.52	18.07	17.39	2.46M
July 28, 2026	18.8	17.99	17.99	18.81	17.86	1.99M
July 27, 2026	19.17	18.94	18.94	19.27	18.76	1.93M
July 24, 2026	19.84	19.3	19.3	19.88	19.29	738,877
July 23, 2026	19.74	19.88	19.88	19.96	19.58	616,412
July 22, 2026	19.6	19.76	19.76	19.89	19.22	2.29M
July 21, 2026	19.42	19.71	19.71	19.79	19.3	1.73M
July 20, 2026	18.67	19.32	19.32	19.33	18.63	1.7M
July 17, 2026	18.42	18.61	18.61	18.82	18.29	2.03M
July 16, 2026	19.14	18.59	18.59	19.14	18.47	2.69M
July 15, 2026	19.66	19.15	19.15	19.78	18.93	1.11M
July 14, 2026	19.87	19.59	19.59	19.94	19.51	1.4M
July 13, 2026	20.11	19.68	19.68	20.16	19.63	674,664
July 10, 2026	20.51	20.15	20.15	20.51	20.13	1.08M
July 09, 2026	20.64	20.54	20.54	21.07	20.25	1.39M
July 08, 2026	19.86	20.49	20.49	20.6	19.78	2.05M
July 07, 2026	19.34	20	20	20.01	19.23	2.37M
July 06, 2026	19.53	19.28	19.28	19.85	19.25	1.44M
July 03, 2026	19.14	19.45	19.45	19.63	19.14	382,303
July 02, 2026	19.31	19.11	19.11	19.62	18.87	2.37M
June 30, 2026	19.28	19.62	19.62	19.79	19.16	1.29M
June 29, 2026	19.57	19.36	19.36	19.76	19.15	2.06M
June 26, 2026	19.62	19.57	19.57	19.67	19.4	2.2M
June 25, 2026	19.68	19.59	19.59	19.87	19.29	2.53M
June 24, 2026	19.46	19.47	19.47	19.82	19.24	2.72M
June 23, 2026	19.37	19.51	19.51	19.51	19.21	1.92M
June 22, 2026	19.55	19.64	19.64	19.9	19.42	2.08M
June 19, 2026	19.4	19.52	19.52	19.62	19.4	739,023
June 18, 2026	19.22	19.43	19.43	19.57	19.07	1.94M
June 17, 2026	18.89	19.16	19.16	19.5	18.88	2.54M
June 16, 2026	18.97	18.94	18.94	19.14	18.79	1.69M
June 15, 2026	18.86	19.02	19.02	19.1	18.62	2.66M
June 12, 2026	18.75	18.76	18.76	19.09	18.56	2.89M
June 11, 2026	17.35	18.69	18.69	18.86	17.35	4.68M
June 10, 2026	17.63	17.27	17.27	17.66	16.95	2.42M
June 09, 2026	17.52	17.4	17.4	17.87	17.23	3.76M
June 08, 2026	17.7	17.47	17.47	17.88	17.32	3.75M
June 05, 2026	17.85	17.69	17.69	18.26	17.4	3.55M
June 04, 2026	18.9	18	18	18.95	17.65	7.6M
June 03, 2026	20.12	20.08	20.08	20.51	19.91	1.97M
June 02, 2026	19.62	19.83	19.83	20.2	19.62	1.31M
June 01, 2026	19.35	19.63	19.63	19.87	19.25	993,942
May 29, 2026	19.36	19.65	19.65	19.65	19.09	2.9M
May 28, 2026	19.15	19.36	19.36	19.46	19.1	1.71M