ClearSign Technologies Corporation (CLIR) NASDAQ

Currency In USD

CLIR Historical Return

If you invested $1000 in ClearSign Technologies Corporation (CLIR) 10 years ago, it would be worth $75.8 as of June 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $79.29, while $1000 invested 1 year ago would be worth $656.85. This corresponds to total returns of -92.42%, -92.07%, -34.32%, respectively, with annualized returns of -22.73%, -39.75%, -34.32%.

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

CLIR Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
June 18, 2026	4.1	3.79	3.79	4.1	3.71	34,006
June 17, 2026	4.14	4.05	4.05	4.14	4.02	13,974
June 16, 2026	4.33	4.12	4.12	4.33	4.07	25,761
June 15, 2026	4.28	4.14	4.14	4.28	4.08	12,548
June 12, 2026	4.17	4.08	4.08	4.19	4.08	9,253
June 11, 2026	4.32	4.17	4.17	4.32	4.1	15,823
June 10, 2026	4.32	4.19	4.19	4.34	4.07	18,166
June 09, 2026	4.25	4.16	4.16	4.43	4.07	22,773
June 08, 2026	3.93	4.15	4.15	4.25	3.93	19,702
June 05, 2026	4.39	3.94	3.94	4.39	3.94	9,402
June 04, 2026	4.35	4.28	4.28	4.47	4.28	17,549
June 03, 2026	4.4	4.38	4.38	4.47	4.38	10,962
June 02, 2026	4.45	4.46	4.46	4.55	4.36	9,663
June 01, 2026	4.55	4.47	4.47	4.63	3.73	7,922
May 29, 2026	4.39	4.63	4.63	4.69	4.27	57,987
May 28, 2026	4.45	4.56	4.56	4.75	4.41	29,730
May 27, 2026	4.4	4.45	4.45	4.65	4.4	14,490
May 26, 2026	4.78	4.63	4.63	4.84	4.6	51,150
May 22, 2026	4.74	4.85	4.85	4.89	4.61	17,890
May 21, 2026	4.73	5.01	5.01	5.01	4.59	8,052
May 20, 2026	4.61	4.9	4.9	5.09	4.51	16,855
May 19, 2026	4.47	4.6	4.6	4.65	4.46	6,202
May 18, 2026	4.71	4.41	4.41	4.82	4.41	25,389
May 15, 2026	4.86	4.71	4.71	5.07	4.62	21,737
May 14, 2026	4.61	5.21	5.21	5.56	4.57	29,258
May 13, 2026	4.49	4.45	4.45	4.74	4.35	16,117
May 12, 2026	4.38	4.55	4.55	4.75	4.37	16,972
May 11, 2026	4.61	4.36	4.36	4.61	4.18	22,458
May 08, 2026	4.8	4.54	4.54	4.8	4.21	26,176
May 07, 2026	4.97	4.83	4.83	4.98	4.62	16,308
May 06, 2026	4.91	4.91	4.91	5.01	4.8	15,731
May 05, 2026	4.94	4.91	4.91	4.99	4.88	4,984
May 04, 2026	5.03	5.06	5.06	5.1	4.57	16,145
May 01, 2026	5.05	5.12	5.12	5.22	5.01	14,549
April 30, 2026	5.33	5	5	5.33	5	9,138
April 29, 2026	5.33	5.37	5.37	5.56	5.33	2,910
April 28, 2026	5.32	5.33	5.33	5.51	5.32	9,286
April 27, 2026	4.88	5.23	5.23	5.33	4.73	14,681
April 24, 2026	5.08	5	5	5.26	5	5,724
April 23, 2026	5.48	5.16	5.16	5.5	5.06	15,246
April 22, 2026	5.48	5.59	5.59	5.8	5.48	12,982
April 21, 2026	5.44	5.4	5.4	5.53	5.21	11,907
April 20, 2026	5.56	5.41	5.41	5.66	5.19	55,957
April 17, 2026	5.33	5.45	5.45	5.68	5.33	21,221
April 16, 2026	5.9	5.33	5.33	6.14	5.22	17,537
April 15, 2026	5.6	5.84	5.84	5.96	5.6	17,538
April 14, 2026	5.47	5.38	5.38	5.6	5.26	17,752
April 13, 2026	5.29	5.39	5.39	5.39	4.93	47,758
April 10, 2026	6.28	5.29	5.29	6.59	4.73	131,586
April 09, 2026	6.3	6.18	6.18	6.87	5.99	53,779
April 08, 2026	6.58	6.47	6.47	6.59	5.99	40,225
April 07, 2026	6.45	6.15	6.15	6.98	5.55	77,114
April 06, 2026	4.85	6.94	6.94	7.56	4.8	669,462
April 02, 2026	4.72	4.83	4.83	4.94	4.31	8,305
April 01, 2026	4.39	4.71	4.71	4.71	4.35	13,641
March 31, 2026	3.69	4.36	4.36	4.46	3.69	10,742
March 30, 2026	3.78	3.85	3.85	4.04	3.6	43,905
March 27, 2026	3.71	3.74	3.74	3.76	3.24	10,027
March 26, 2026	3.5	3.72	3.72	4.06	3.5	19,009
March 25, 2026	3.65	3.57	3.57	3.73	3.57	7,075