AltaGas Ltd. (ALA.TO) TSX

Currency In CAD

ALA.TO Historical Return

If you invested $1000 in AltaGas Ltd. (ALA.TO) 10 years ago, it would be worth $2,466.95 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 $2,432.5, while $1000 invested 1 year ago would be worth $1,266.67. This corresponds to total returns of 146.69%, 143.25%, 26.67%, respectively, with annualized returns of 9.44%, 19.46%, 26.67%.

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

ALA.TO Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
August 21, 2026	53.76	52.25	52.25	53.76	51.97	1.11M
August 20, 2026	52.99	53.72	53.72	53.99	52.99	541,798
August 19, 2026	53.61	53.31	53.31	53.83	52.85	1.23M
August 18, 2026	53.45	53.66	53.66	54.01	53.25	486,217
August 17, 2026	53.63	53.17	53.17	53.66	52.87	600,229
August 14, 2026	53.09	53.65	53.65	53.66	52.94	729,353
August 13, 2026	52.9	53.14	53.14	53.49	52.9	1.02M
August 12, 2026	53.09	52.95	52.95	53.34	52.79	468,939
August 11, 2026	52.8	53.26	53.26	53.37	52.7	647,114
August 10, 2026	53.36	52.79	52.79	53.36	52.12	1.24M
August 07, 2026	53.42	53.2	53.2	53.5	52.83	739,111
August 06, 2026	53.6	53.88	53.88	53.89	53.15	703,485
August 05, 2026	55.41	52.97	52.97	55.54	52.64	2.02M
August 04, 2026	54.99	55.58	55.58	56.42	54.52	1.16M
July 31, 2026	56.33	55.78	55.78	57.28	55.78	824,676
July 30, 2026	56.4	55.83	55.83	56.99	54.85	953,793
July 29, 2026	55.79	55.64	55.64	56.11	55.02	1.04M
July 28, 2026	56.48	55.51	55.51	56.63	55.48	942,637
July 27, 2026	56.79	56.23	56.23	57.12	55.99	613,705
July 23, 2026	56.45	56.98	56.98	57.2	56.04	1.12M
July 22, 2026	55.18	56.22	56.22	56.36	55.15	651,564
July 21, 2026	55.07	54.96	54.96	55.22	54.6	438,249
July 20, 2026	55.34	55.04	55.04	56.06	55.01	1.08M
July 17, 2026	55.71	55.26	55.26	56	55.06	906,408
July 16, 2026	54.89	55.46	55.46	55.67	54.78	881,600
July 15, 2026	54.49	54.86	54.86	54.9	54.41	534,904
July 14, 2026	54.47	54.57	54.57	54.76	54.16	457,683
July 13, 2026	54.18	54.46	54.46	54.65	54.09	956,022
July 10, 2026	54.07	53.66	53.66	54.43	53.4	463,652
July 09, 2026	54.33	53.97	53.97	54.67	53.78	515,399
July 08, 2026	53.83	54.52	54.52	54.55	53.69	863,836
July 07, 2026	52.63	53.69	53.69	53.76	52.37	1.06M
July 06, 2026	52.51	52.2	52.2	53.1	51.89	1.77M
July 03, 2026	52.01	52.69	52.69	52.88	51.89	512,505
July 02, 2026	52.21	52.13	52.13	52.25	51.29	1.17M
June 30, 2026	53.15	52.39	52.39	53.24	52.22	1.02M
June 29, 2026	54.38	53.17	53.17	54.51	53.07	499,340
June 26, 2026	54.37	54.31	54.31	54.52	53.88	843,435
June 25, 2026	54.6	54.34	54.34	54.63	53.96	1.03M
June 24, 2026	53.84	54.4	54.4	54.57	53.27	1.06M
June 23, 2026	53.97	53.85	53.85	54.4	53.55	1.31M
June 22, 2026	53.86	53.65	53.65	54.36	53.37	1.46M
June 19, 2026	53.36	53.87	53.87	54.22	53.18	516,098
June 18, 2026	53.59	53.32	53.32	53.74	53.04	838,768
June 17, 2026	53.58	53.81	53.81	54.25	53.44	657,304
June 16, 2026	54.67	53.67	53.67	54.78	53.67	1.1M
June 15, 2026	54.7	55.15	55.15	55.25	53.98	745,680
June 12, 2026	55.52	55.2	55.2	55.86	54.85	1.34M
June 11, 2026	55.96	55.71	55.71	56.74	55.64	1.14M
June 10, 2026	55.01	56.03	56.03	56.25	54.62	926,985
June 09, 2026	54.54	54.89	54.89	55.22	54.14	764,146
June 08, 2026	55.62	54.69	54.69	55.84	54.57	710,438
June 05, 2026	55.55	55.76	55.76	56.32	55.18	906,205
June 04, 2026	54.53	55.37	55.37	55.69	54.47	1.66M
June 03, 2026	54.02	54.31	54.31	55.12	54.02	1.89M
June 02, 2026	53.93	53.92	53.92	54.61	53.79	1.28M
June 01, 2026	53.57	53.86	53.86	54.5	53.55	1.1M
May 29, 2026	54.06	53.65	53.65	54.57	53.19	2.48M
May 28, 2026	54.11	54.17	54.17	54.75	53.75	835,265
May 27, 2026	53.53	53.95	53.95	54.21	53.53	650,548