Cogent Communications Holdings, Inc. (CCOI) NASDAQ

Currency In USD

CCOI Historical Return

If you invested $1000 in Cogent Communications Holdings, Inc. (CCOI) 10 years ago, it would be worth $409.93 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 $165.07, while $1000 invested 1 year ago would be worth $259.53. This corresponds to total returns of -59.01%, -83.49%, -74.05%, respectively, with annualized returns of -8.53%, -30.25%, -74.05%.

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

CCOI Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
September 11, 2026	9.23	9.33	9.33	9.79	9.04	1.92M
September 10, 2026	9.2	9.09	9.09	9.37	8.6	2.17M
September 09, 2026	9.66	9.33	9.33	9.7	9	2.25M
September 08, 2026	9.98	9.64	9.64	10.16	9.46	2.64M
September 04, 2026	10.02	10.05	10.05	10.39	9.85	1.32M
September 03, 2026	10.22	9.98	9.98	10.22	9.35	1.85M
September 02, 2026	9	10.22	10.22	10.42	8.94	2.65M
September 01, 2026	9.42	9.01	9.01	9.54	8.88	1.61M
August 31, 2026	9.42	9.54	9.54	9.69	9.19	1.62M
August 28, 2026	9.7	9.48	9.48	10	9.4	1.06M
August 27, 2026	9.83	9.67	9.67	10.1	9.27	1.23M
August 26, 2026	9.89	10.05	10.05	10.23	9.72	954,452
August 25, 2026	9.49	9.88	9.88	10.01	9.48	1.42M
August 24, 2026	9.05	9.49	9.49	9.85	9.05	2.5M
August 21, 2026	10.09	9.17	9.17	10.16	9.16	1.86M
August 20, 2026	10.25	10.01	10.01	10.32	9.57	1.62M
August 19, 2026	9.59	10.37	10.37	10.37	9.03	2.38M
August 18, 2026	10.76	10.13	10.13	10.76	9.75	1.76M
August 17, 2026	11.08	10.75	10.75	11.15	10.64	1.29M
August 14, 2026	10.17	11.31	11.31	11.47	10.05	2.26M
August 13, 2026	10	10.35	10.35	10.49	9.55	2.21M
August 12, 2026	10.99	10.25	10.25	11.21	10.24	0
August 11, 2026	10.27	10.82	10.82	10.84	9.98	0
August 10, 2026	10	10.3	10.3	10.71	9.42	2.53M
August 07, 2026	10.97	9.92	9.92	11.14	9	4.21M
August 06, 2026	13.37	10.91	10.91	13.49	10.1	3.29M
August 05, 2026	13.03	12.87	12.87	13.15	12.36	1.46M
August 04, 2026	13.22	13.3	13.3	13.5	12.93	1.08M
August 03, 2026	13.65	13.23	13.23	13.77	13.22	1.42M
July 31, 2026	13.22	13.5	13.5	13.53	12.78	962,594
July 30, 2026	12.56	13.24	13.24	13.31	12.43	1.01M
July 29, 2026	12.77	12.69	12.69	12.87	11.82	1.41M
July 28, 2026	12.24	12.95	12.95	12.98	12.15	998,260
July 27, 2026	11.97	12.22	12.22	12.38	11.85	999,739
July 23, 2026	12.61	12.9	12.9	13.06	12.38	981,525
July 22, 2026	13.07	12.93	12.93	13.28	12.76	835,227
July 21, 2026	12.57	12.7	12.7	13.11	12.46	1.05M
July 20, 2026	11.03	12.4	12.4	12.53	10.96	1.53M
July 17, 2026	11.42	10.97	10.97	11.57	10.93	1.55M
July 16, 2026	12.5	11.71	11.71	12.94	11.66	922,536
July 15, 2026	12.34	12.52	12.52	13.06	12.25	796,260
July 14, 2026	12.99	12.25	12.25	13.28	11.9	1.13M
July 13, 2026	12.75	12.93	12.93	13.45	12.75	1.17M
July 10, 2026	12.79	12.61	12.61	13.06	12.55	795,084
July 09, 2026	12.34	12.64	12.64	12.67	12.15	930,969
July 08, 2026	11.48	12.36	12.36	12.69	11.43	1.28M
July 07, 2026	12.15	11.66	11.66	12.45	11.65	1.34M
July 06, 2026	13.2	12.19	12.19	13.48	12.12	1.42M
July 02, 2026	14.49	12.99	12.99	14.68	12.52	2.19M
July 01, 2026	13.93	14.28	14.28	14.6	13.91	1.45M
June 30, 2026	14.01	13.88	13.88	14.46	13.23	2.19M
June 29, 2026	13.69	13.14	13.14	13.84	12.33	1.97M
June 26, 2026	13.02	13.41	13.41	13.5	12.84	2.54M
June 25, 2026	13.48	13.16	13.16	13.66	13.02	1.86M
June 24, 2026	14.37	13.52	13.52	14.44	13.33	1.46M
June 23, 2026	14.52	14.16	14.16	15.28	14	1.13M
June 22, 2026	14.04	14.66	14.66	15.88	13.69	1.91M
June 18, 2026	15.07	14.19	14.19	15.24	14.13	1.91M
June 17, 2026	15.9	14.61	14.61	16.07	14.57	1.12M
June 16, 2026	16.46	16.05	16.05	16.97	16	927,595