Ionis Pharmaceuticals, Inc. (IONS) NASDAQ

Currency In USD

IONS Historical Return

If you invested $1000 in Ionis Pharmaceuticals, Inc. (IONS) 10 years ago, it would be worth $1,805.8 as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,494.62, while $1000 invested 1 year ago would be worth $858.3. This corresponds to total returns of 80.58%, 49.46%, -14.17%, respectively, with annualized returns of 6.08%, 8.37%, -14.17%.

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

IONS Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 11, 2026	55.94	54.21	54.21	56.16	54.16	2.15M
September 10, 2026	55.75	55.65	55.65	55.77	54.91	2.94M
September 09, 2026	56.38	56.02	56.02	56.96	55.7	3M
September 08, 2026	52.15	56.71	56.71	57.43	52.15	9.1M
September 04, 2026	58.36	58.09	58.09	58.96	57.78	2.22M
September 03, 2026	60.42	58.13	58.13	60.42	57.47	4.26M
September 02, 2026	60.25	61.33	61.33	61.77	59.78	1.83M
September 01, 2026	60.37	59.88	59.88	60.99	59.78	1.87M
August 31, 2026	61.07	60.36	60.36	61.07	59.7	2.02M
August 28, 2026	60.62	61.05	61.05	61.69	60.35	1.85M
August 27, 2026	63.48	62.43	62.43	63.48	62.34	1.62M
August 26, 2026	63.5	63.36	63.36	63.55	62.44	2.15M
August 25, 2026	62.53	63.57	63.57	64.19	62.19	2.43M
August 24, 2026	60.54	62.04	62.04	62.07	59.7	2.21M
August 21, 2026	59.64	59.74	59.74	60.92	59.06	2.72M
August 20, 2026	60.03	58.76	58.76	60.41	58.6	2.12M
August 19, 2026	60.11	60.8	60.8	61.36	59.61	3.13M
August 18, 2026	58.41	59.62	59.62	60.19	58.02	3.19M
August 17, 2026	57.11	58.63	58.63	58.74	56.41	2M
August 14, 2026	55.16	57.24	57.24	57.24	55.16	1.34M
August 13, 2026	56.5	55.87	55.87	56.81	55.56	1.11M
August 12, 2026	55.01	56.53	56.53	57.07	54.91	1.98M
August 11, 2026	56.79	55.42	55.42	57.16	55.37	2.39M
August 10, 2026	56.1	56.94	56.94	57.66	56.1	2.2M
August 07, 2026	54.73	56.56	56.56	56.6	54.4	1.82M
August 06, 2026	54.59	54.49	54.49	55.42	54.02	2.58M
August 05, 2026	55.17	54.19	54.19	55.36	53.58	2.09M
August 04, 2026	54.85	55.07	55.07	55.22	53.87	2.5M
August 03, 2026	52.66	54.49	54.49	54.54	52.17	3.21M
July 31, 2026	53.33	51.77	51.77	53.33	51.28	2.56M
July 30, 2026	53.92	53.28	53.28	54.04	52.65	2.87M
July 29, 2026	55.09	54.04	54.04	55.36	53.5	3.13M
July 28, 2026	56.56	55.3	55.3	56.56	54	2.8M
July 27, 2026	56.93	55.96	55.96	57.09	55.79	2.55M
July 23, 2026	53.71	55.87	55.87	57.48	53.35	3.83M
July 22, 2026	51.16	54.01	54.01	54.06	50.01	8.71M
July 21, 2026	52.75	53.39	53.39	54.13	52.26	3.03M
July 20, 2026	54.47	52.95	52.95	54.8	52.82	2.17M
July 17, 2026	54.1	54.39	54.39	54.69	53.76	2.57M
July 16, 2026	53.95	54.65	54.65	55.98	53.38	3.8M
July 15, 2026	54.48	54.73	54.73	54.89	53.51	3.57M
July 14, 2026	55.8	54.93	54.93	56.46	54.53	4.7M
July 13, 2026	57.91	56.75	56.75	57.91	56.11	5.1M
July 10, 2026	64.27	58.25	58.25	64.44	58.2	11.24M
July 09, 2026	67.78	64.27	64.27	70.35	64.1	20.42M
July 08, 2026	85.56	84.46	84.46	86.74	83.92	2.28M
July 07, 2026	84.42	86.33	86.33	86.67	82.95	2.65M
July 06, 2026	82.11	83.18	83.18	84.01	81.19	1.84M
July 02, 2026	79.53	81.8	81.8	81.99	79.11	2.29M
July 01, 2026	79.13	79.19	79.19	79.48	77.95	1.43M
June 30, 2026	81.17	79.29	79.29	81.24	79.21	2.04M
June 29, 2026	81	80.69	80.69	82.53	79.95	2.74M
June 26, 2026	78.8	81.18	81.18	82.63	78.8	3.83M
June 25, 2026	76.69	78.34	78.34	79.55	76.25	2.58M
June 24, 2026	76.4	76.52	76.52	79	76.04	2.48M
June 23, 2026	75.89	75.99	75.99	77.31	75.77	1.41M
June 22, 2026	74.85	75.89	75.89	76.56	74.12	1.96M
June 18, 2026	75	74.12	74.12	75.66	73.5	2.98M
June 17, 2026	73.09	74.31	74.31	75.12	72.55	1.79M
June 16, 2026	73.93	73.09	73.09	73.96	72.3	1.8M