Environmental Tectonics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
May 27, 2026	1.90	2.00	1.90	2.00	2.00	5.26%	30,625
May 26, 2026	1.84	1.90	1.84	1.90	1.90	4.40%	52,685
May 22, 2026	1.79	1.84	1.79	1.82	1.82	4.00%	13,061
May 21, 2026	1.85	1.95	1.75	1.75	1.75	-2.78%	32,185
May 20, 2026	1.62	1.94	1.62	1.80	1.80	-2.70%	40,628
May 19, 2026	1.71	1.90	1.70	1.85	1.85	2.78%	32,060
May 18, 2026	1.81	1.87	1.70	1.80	1.80	-1.64%	45,730
May 15, 2026	1.65	1.86	1.65	1.83	1.83	14.37%	26,029
May 14, 2026	1.50	1.68	1.46	1.60	1.60	3.90%	20,510
May 13, 2026	1.65	1.80	1.47	1.54	1.54	-6.67%	75,997
May 12, 2026	1.60	1.65	1.44	1.65	1.65	3.12%	12,588
May 11, 2026	1.18	1.69	1.18	1.60	1.60	36.99%	103,542
May 8, 2026	1.18	1.18	1.17	1.17	1.17	-1.02%	24,891
May 7, 2026	1.14	1.19	1.13	1.18	1.18	-0.84%	12,039
May 6, 2026	1.19	1.20	1.12	1.19	1.19	0.85%	3,019
May 5, 2026	1.10	1.19	1.10	1.18	1.18	7.27%	1,000
May 4, 2026	1.08	1.24	1.05	1.10	1.10	6.80%	37,076
May 1, 2026	1.23	1.26	1.03	1.03	1.03	-16.94%	17,741
Apr 30, 2026	1.22	1.27	1.15	1.24	1.24	3.33%	24,674
Apr 29, 2026	1.09	1.24	1.09	1.20	1.20	11.79%	36,828
Apr 28, 2026	0.72	1.25	0.72	1.07	1.07	51.40%	329,294
Apr 27, 2026	0.70	0.71	0.70	0.71	0.71	1.14%	60,750
Apr 24, 2026	0.71	0.71	0.70	0.70	0.70	-1.26%	2,300
Apr 21, 2026	0.71	0.71	0.71	0.71	0.71	-1.24%	195
Apr 20, 2026	0.71	0.72	0.68	0.72	0.72	5.03%	2,450
Apr 17, 2026	0.71	0.71	0.68	0.68	0.68	-2.21%	9,194
Apr 16, 2026	0.71	0.71	0.68	0.70	0.70	-2.70%	37,256
Apr 15, 2026	0.72	0.72	0.71	0.72	0.72	-0.08%	1,965
Apr 14, 2026	0.72	0.72	0.72	0.72	0.72	-	1,928
Apr 13, 2026	0.72	0.73	0.72	0.72	0.72	0.11%	32,240
Apr 10, 2026	0.81	0.81	0.72	0.72	0.72	-1.88%	1,451
Apr 9, 2026	0.73	0.73	0.73	0.73	0.73	1.92%	1,000
Apr 8, 2026	0.73	0.73	0.72	0.72	0.72	-4.54%	34,849
Apr 7, 2026	0.75	0.75	0.75	0.75	0.75	4.49%	100
Apr 6, 2026	0.76	0.76	0.72	0.72	0.72	-4.96%	6,600
Apr 1, 2026	0.76	0.76	0.76	0.76	0.76	-0.18%	500
Mar 31, 2026	0.74	0.76	0.74	0.76	0.76	1.17%	79,200
Mar 26, 2026	0.75	0.75	0.75	0.75	0.75	-	100
Mar 25, 2026	0.75	0.75	0.75	0.75	0.75	-1.16%	657
Mar 24, 2026	0.75	0.76	0.75	0.76	0.76	-	55,100
Mar 19, 2026	0.76	0.76	0.73	0.76	0.76	3.40%	23,300
Mar 18, 2026	0.78	0.79	0.74	0.74	0.74	-8.13%	28,189
Mar 17, 2026	0.80	0.80	0.80	0.80	0.80	0.34%	111
Mar 16, 2026	0.81	0.82	0.74	0.80	0.80	-1.95%	38,900
Mar 13, 2026	0.82	0.83	0.80	0.81	0.81	-3.42%	28,800
Mar 11, 2026	0.83	0.86	0.83	0.84	0.84	1.45%	21,922
Mar 10, 2026	0.83	0.83	0.82	0.83	0.83	-3.34%	6,550
Mar 9, 2026	0.86	0.86	0.85	0.86	0.86	0.43%	12,801
Mar 6, 2026	0.85	0.89	0.85	0.86	0.86	-2.60%	18,776
Mar 5, 2026	0.90	0.90	0.85	0.88	0.88	0.90%	4,700