Alector, Inc. (ALEC) NASDAQ

Currency In USD

ALEC Historical Return

If you invested $1000 in Alector, Inc. (ALEC) since IPO date, it would be worth $118.36 as of September 11, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $90.03, while $1000 invested 1 year ago would be worth $745.64. This corresponds to total returns of -88.16%, -91%, -25.44%, respectively, with annualized returns of -24.49%, -38.23%, -25.44%.

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

ALEC Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 10, 2026	2.22	2.14	2.14	2.24	2	3.78M
September 09, 2026	2.47	2.27	2.27	2.47	2.25	505,604
September 08, 2026	2.38	2.47	2.47	2.61	2.33	915,268
September 04, 2026	2.52	2.46	2.46	2.58	2.44	496,598
September 03, 2026	2.7	2.51	2.51	2.75	2.44	2.68M
September 02, 2026	2.4	2.72	2.72	2.76	2.4	1.67M
September 01, 2026	2.24	2.4	2.4	2.49	2.22	482,254
August 31, 2026	2.32	2.26	2.26	2.35	2.23	610,059
August 28, 2026	2.39	2.34	2.34	2.44	2.32	542,221
August 27, 2026	2.44	2.39	2.39	2.5	2.39	706,682
August 26, 2026	2.38	2.46	2.46	2.52	2.26	995,457
August 25, 2026	2.32	2.36	2.36	2.46	2.28	556,526
August 24, 2026	2.36	2.3	2.3	2.47	2.29	738,140
August 21, 2026	2.28	2.36	2.36	2.37	2.2	728,094
August 20, 2026	2.4	2.26	2.26	2.46	2.19	662,211
August 19, 2026	2.28	2.43	2.43	2.53	2.16	0
August 18, 2026	2.04	2.21	2.21	2.3	2.04	4.77M
August 17, 2026	1.91	2.05	2.05	2.09	1.9	913,801
August 14, 2026	2.04	1.96	1.96	2.07	1.95	596,372
August 13, 2026	2.15	2.04	2.04	2.15	1.99	0
August 12, 2026	2.06	2.15	2.15	2.17	2.03	0
August 11, 2026	1.68	2.09	2.09	2.13	1.65	0
August 10, 2026	1.77	1.69	1.69	1.78	1.6	804,112
August 07, 2026	1.84	1.78	1.78	2	1.74	0
August 06, 2026	1.49	1.83	1.83	2.04	1.48	5.7M
August 05, 2026	1.56	1.49	1.49	1.57	1.46	392,305
August 04, 2026	1.51	1.54	1.54	1.61	1.51	407,155
August 03, 2026	1.51	1.51	1.51	1.54	1.46	359,922
July 31, 2026	1.62	1.51	1.51	1.62	1.49	548,293
July 30, 2026	1.52	1.62	1.62	1.67	1.51	453,152
July 29, 2026	1.51	1.52	1.52	1.57	1.49	307,858
July 28, 2026	1.51	1.52	1.52	1.54	1.48	342,802
July 27, 2026	1.49	1.51	1.51	1.58	1.47	229,001
July 23, 2026	1.48	1.49	1.49	1.55	1.47	607,101
July 22, 2026	1.53	1.53	1.53	1.54	1.49	333,340
July 21, 2026	1.42	1.54	1.54	1.55	1.42	499,617
July 20, 2026	1.49	1.43	1.43	1.5	1.42	463,909
July 17, 2026	1.43	1.5	1.5	1.52	1.42	500,157
July 16, 2026	1.4	1.47	1.47	1.5	1.39	713,478
July 15, 2026	1.39	1.5	1.5	1.53	1.37	718,779
July 14, 2026	1.53	1.39	1.39	1.53	1.37	528,632
July 13, 2026	1.6	1.51	1.51	1.61	1.5	775,693
July 10, 2026	1.63	1.61	1.61	1.66	1.48	597,213
July 09, 2026	1.83	1.64	1.64	1.86	1.6	589,161
July 08, 2026	1.9	1.83	1.83	1.94	1.81	643,815
July 07, 2026	1.97	1.93	1.93	1.97	1.86	416,164
July 06, 2026	2.06	1.94	1.94	2.07	1.93	588,486
July 02, 2026	2.02	2.06	2.06	2.15	2	393,984
July 01, 2026	1.99	2.01	2.01	2.07	1.96	368,534
June 30, 2026	2.1	2.01	2.01	2.13	1.98	609,358
June 29, 2026	1.88	2.08	2.08	2.09	1.77	544,167
June 26, 2026	1.84	1.86	1.86	1.96	1.84	3.85M
June 25, 2026	1.79	1.85	1.85	2.02	1.75	2.83M
June 24, 2026	1.78	1.79	1.79	1.87	1.78	510,346
June 23, 2026	1.75	1.83	1.83	1.87	1.72	853,995
June 22, 2026	1.76	1.78	1.78	1.92	1.72	1.59M
June 18, 2026	1.58	1.75	1.75	1.77	1.57	1.11M
June 17, 2026	1.55	1.56	1.56	1.6	1.53	496,015
June 16, 2026	1.47	1.54	1.54	1.55	1.41	712,030
June 15, 2026	1.56	1.48	1.48	1.6	1.46	629,572