Cyclerion Therapeutics, Inc. (CYCN) NASDAQ

Currency In USD

CYCN Historical Return

If you invested $1000 in Cyclerion Therapeutics, Inc. (CYCN) since IPO date, it would be worth $13.44 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 $54.55, while $1000 invested 1 year ago would be worth $1,365.85. This corresponds to total returns of -98.66%, -94.55%, 36.59%, respectively, with annualized returns of -43.74%, -44.11%, 36.59%.

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

CYCN Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 08, 2026	26.04	23.52	23.94	26.88	19.74	435,847
September 04, 2026	31.71	29.75	29.75	31.71	28.56	104,035
September 03, 2026	31.57	34.72	34.72	36.33	31.22	150,563
September 02, 2026	28.91	31.64	31.64	32.41	27.88	114,265
September 01, 2026	25.62	29.19	29.19	29.54	25.62	17,678
August 31, 2026	26.39	25.76	25.76	27.23	24.85	23,649
August 28, 2026	27.93	26.53	26.53	29.89	26.25	8,573
August 27, 2026	28.7	27.93	27.93	29.82	27.58	13,871
August 26, 2026	27.79	29.05	29.05	30.8	27.79	13,043
August 25, 2026	27.51	28	28	29.26	27.51	11,613
August 24, 2026	28.21	27.51	27.51	30.8	27.3	12,967
August 21, 2026	28.49	27.23	27.23	30.03	26.46	9,393
August 20, 2026	28.49	28.49	28.49	31.29	28.07	12,305
August 19, 2026	28.35	28.91	28.91	30.1	28.35	2,086
August 18, 2026	27.44	28.84	28.84	29.75	27.09	2,091
August 17, 2026	26.32	28.21	28.21	29.4	26.32	2,200
August 14, 2026	26.95	26.53	26.53	27.79	26.11	3,458
August 13, 2026	27.44	27.37	27.37	31.15	26.67	11,853
August 12, 2026	24.71	27.44	27.44	29.12	24.71	14,672
August 11, 2026	24.92	24.99	24.99	25.69	23.8	1,515
August 10, 2026	24.57	25.06	25.06	26.11	24.57	1,192
August 07, 2026	24.5	24.99	24.99	25.97	24.5	2,835
August 06, 2026	23.87	24.92	24.92	25.9	23.87	701
August 05, 2026	24.5	24.85	24.85	25.83	23.8	5,714
August 04, 2026	24.43	24.57	24.57	25.69	24.01	914
August 03, 2026	23.87	24.43	24.43	25.06	23.59	743
July 31, 2026	24.36	24.08	24.08	25.2	23.52	2,244
July 30, 2026	24.5	24.5	24.5	24.5	24.29	506
July 29, 2026	24.22	24.5	24.5	25.2	24.01	1,438
July 28, 2026	24.5	24.5	24.5	25.62	23.59	2,644
July 27, 2026	23.87	24.5	24.5	24.85	23.87	2,257
July 24, 2026	25.06	24.5	24.5	25.34	23.8	10,486
July 23, 2026	25.55	25.34	25.34	25.55	25.2	839
July 22, 2026	26.11	25.41	25.41	26.6	25.2	1,630
July 21, 2026	25.83	25.9	25.9	26.04	25.2	1,083
July 20, 2026	25.27	25.55	25.55	26.32	24.92	2,894
July 17, 2026	25.2	25.48	25.48	25.69	24.99	2,591
July 16, 2026	25.69	25.62	25.62	26.88	24.92	1,635
July 15, 2026	26.46	25.97	25.97	27.3	25.69	3,300
July 14, 2026	27.16	26.81	26.81	27.58	24.85	4,367
July 13, 2026	26.18	26.74	26.74	27.16	25.76	1,687
July 10, 2026	26.95	26.88	26.88	26.95	24.57	3,943
July 09, 2026	24.57	27.51	27.51	27.79	24.15	14,929
July 08, 2026	23.31	24.36	24.36	24.43	23.31	929
July 07, 2026	23.87	24.36	24.36	24.36	23.52	1,606
July 06, 2026	23.52	24.22	24.22	24.43	23.52	716
July 02, 2026	24.08	24.01	24.01	24.99	23.45	1,877
July 01, 2026	24.08	23.59	23.59	25.13	23.45	3,933
June 30, 2026	22.96	23.73	23.73	24.36	22.96	2,243
June 29, 2026	23.38	23.52	23.52	23.87	23.38	1,164
June 26, 2026	21.98	23.66	23.66	23.66	21.98	3,996
June 25, 2026	21.84	22.19	22.19	22.82	21.84	1,997
June 24, 2026	22.75	21.98	21.98	23.24	21.98	5,945
June 23, 2026	21.91	22.89	22.89	23.45	21.91	2,002
June 22, 2026	21.98	22.54	22.54	22.96	21.21	2,887
June 18, 2026	22.54	22.4	22.4	23.1	22.4	6,274
June 17, 2026	21.91	22.26	22.26	23.45	21.91	2,935
June 16, 2026	22.05	22.26	22.26	22.68	21.77	8,984
June 15, 2026	23.17	22.26	22.26	23.8	22.26	5,296
June 12, 2026	21.77	22.75	22.75	22.89	21.77	5,586