• N/A
    Market Cap
  • 44.16%
    1-Year Change
  • Pollution & Treatment Controls
    Industry
  • 1 Month
    -10.74%
    Low Price$2.22
    High Price$2.78
  • 3 Months
    +16.84%
    Low Price$1.74
    High Price$2.78
  • 1 Year
    +54.61%
    Low Price$1.34
    High Price$2.78
Date
Open
High
Low
Close
Change (%)
Volume
06/02/2026
2.22
2.22
2.22
2.22
-2.63%
500
05/28/2026
2.28
2.28
2.28
2.28
-0.87%
1,000
05/26/2026
2.40
2.40
2.30
2.30
-4.17%
4,800
05/22/2026
2.40
2.40
2.40
2.40
-3.80%
1,907
05/21/2026
2.36
2.49
2.36
2.49
+5.26%
6,150
05/20/2026
2.30
2.37
2.30
2.37
+2.60%
3,900
05/19/2026
2.47
2.49
2.28
2.31
-16.91%
23,383
05/18/2026
2.78
2.78
2.78
2.78
+7.75%
152
05/15/2026
2.57
2.58
2.57
2.58
+0.78%
10,000
05/14/2026
2.55
2.78
2.52
2.56
+0.39%
20,115
05/13/2026
2.55
2.55
2.55
2.55
-1.19%
800
05/12/2026
2.58
2.58
2.58
2.58
+3.23%
140
05/11/2026
2.50
2.50
2.50
2.50
0.00%
18,100
05/08/2026
2.50
2.50
2.50
2.50
0.00%
6,800
05/07/2026
2.49
2.50
2.49
2.50
+0.52%
1,100
05/05/2026
2.49
2.49
2.49
2.49
-0.52%
2,000
05/04/2026
2.86
2.86
2.41
2.50
+5.55%
3,262
05/01/2026
2.40
2.40
2.37
2.37
+0.08%
3,314
04/28/2026
2.45
2.52
2.35
2.37
-1.39%
11,700
04/27/2026
2.36
2.40
2.36
2.40
+14.29%
20,533
04/24/2026
2.15
2.19
2.10
2.10
-4.11%
30,624
04/22/2026
2.10
2.19
1.84
2.19
+4.29%
11,566
04/21/2026
2.10
2.10
2.10
2.10
-2.33%
1,000
04/20/2026
2.00
2.29
2.00
2.15
+13.16%
86,900
04/17/2026
1.84
1.90
1.84
1.90
+4.40%
2,300
04/16/2026
1.82
1.82
1.82
1.82
+1.11%
500
04/13/2026
1.80
1.80
1.80
1.80
+0.56%
300
04/10/2026
1.79
1.79
1.79
1.79
-0.56%
100
04/09/2026
1.80
1.80
1.80
1.80
+1.12%
277
04/06/2026
1.78
1.78
1.78
1.78
+2.30%
4,500
03/31/2026
1.78
1.82
1.73
1.74
-4.40%
7,588
03/27/2026
1.82
1.82
1.82
1.82
+1.11%
100
03/26/2026
1.80
1.80
1.80
1.80
-5.76%
400
03/25/2026
1.84
1.91
1.84
1.91
+3.80%
17,000
03/24/2026
1.84
1.84
1.84
1.84
+1.10%
625
03/23/2026
1.84
1.84
1.82
1.82
0.00%
600
03/20/2026
1.83
1.84
1.82
1.82
-0.55%
1,000
03/19/2026
1.86
1.86
1.82
1.83
-1.61%
3,300
03/18/2026
1.95
1.95
1.85
1.86
-1.59%
12,706
03/09/2026
1.90
1.90
1.89
1.89
-0.53%
2,580
03/06/2026
2.00
2.00
1.90
1.90
0.00%
2,500
03/03/2026
1.90
1.90
1.90
1.90
0.00%
100
03/02/2026
1.90
1.90
1.90
1.90
-4.52%
800
02/17/2026
2.00
2.00
1.98
1.99
+2.05%
23,345
02/12/2026
2.00
2.00
1.95
1.95
-2.49%
25,220
02/09/2026
2.00
2.00
1.95
2.00
-1.12%
16,500
02/03/2026
2.04
2.04
2.02
2.02
+0.12%
6,200
02/02/2026
1.72
2.29
1.72
2.02
+10.99%
20,800
01/30/2026
1.82
1.82
1.82
1.82
+4.60%
1,782
01/29/2026
1.74
1.74
1.74
1.74
+0.30%
3,615
01/27/2026
1.74
1.74
1.73
1.73
+0.86%
34,786
01/21/2026
1.67
1.74
1.67
1.72
-3.37%
3,400
01/08/2026
1.81
1.81
1.78
1.78
-3.78%
1,200
01/07/2026
1.89
1.89
1.85
1.85
-2.74%
1,126
01/05/2026
1.90
1.90
1.90
1.90
-4.42%
2,000
12/30/2025
1.99
1.99
1.99
1.99
+0.51%
150
12/29/2025
1.97
1.98
1.97
1.98
+6.45%
2,650
12/18/2025
1.86
1.86
1.86
1.86
-2.11%
5,759
12/15/2025
1.90
1.90
1.90
1.90
+8.57%
10,100
12/12/2025
1.75
1.75
1.75
1.75
-0.57%
299
12/08/2025
1.77
1.77
1.76
1.76
-5.62%
10,317
12/05/2025
1.86
1.86
1.86
1.86
-1.85%
320
12/04/2025
1.90
1.90
1.90
1.90
0.00%
400
12/03/2025
1.90
1.90
1.90
1.90
+0.05%
200
12/02/2025
1.90
1.90
1.90
1.90
-0.05%
1,000
11/28/2025
1.90
1.90
1.90
1.90
0.00%
1,000
11/26/2025
1.90
1.96
1.90
1.90
+0.53%
6,500
11/25/2025
1.84
1.89
1.84
1.89
+4.42%
9,990
11/24/2025
1.63
1.81
1.63
1.81
+11.04%
6,223
11/21/2025
1.63
1.63
1.63
1.63
+1.88%
1,084
11/20/2025
1.60
1.60
1.60
1.60
-4.19%
3,301
11/19/2025
1.67
1.67
1.67
1.67
-3.47%
2,506
11/18/2025
1.63
1.81
1.60
1.73
+8.13%
12,023
11/17/2025
1.56
1.66
1.56
1.60
+2.66%
131,757
11/14/2025
1.57
1.57
1.54
1.56
+2.53%
15,638
11/13/2025
1.52
1.52
1.52
1.52
-3.18%
15,100
11/12/2025
1.55
1.57
1.55
1.57
-1.26%
7,900
11/11/2025
1.55
1.59
1.55
1.59
+1.92%
23,103
11/10/2025
1.54
1.56
1.54
1.56
+3.17%
1,600
11/06/2025
1.50
1.51
1.50
1.51
-1.82%
34,200
11/05/2025
1.51
1.54
1.50
1.54
+3.36%
11,865
10/29/2025
1.49
1.49
1.49
1.49
0.00%
9,825
10/28/2025
1.46
1.49
1.46
1.49
+10.62%
1,165
10/22/2025
1.35
1.35
1.35
1.35
-2.39%
1,900
10/21/2025
1.38
1.38
1.38
1.38
+2.98%
2,100
10/16/2025
1.34
1.34
1.34
1.34
-4.96%
46,300
10/14/2025
1.42
1.42
1.41
1.41
-1.99%
12,900
10/10/2025
1.41
1.44
1.41
1.44
-1.47%
21,000
10/09/2025
1.46
1.46
1.46
1.46
+0.007%
1,557
10/08/2025
1.45
1.46
1.45
1.46
+4.28%
2,918
10/07/2025
1.43
1.43
1.40
1.40
-2.10%
5,007
10/06/2025
1.43
1.43
1.43
1.43
+2.14%
265
09/29/2025
1.46
1.47
1.40
1.40
-2.48%
6,030
09/26/2025
1.44
1.44
1.44
1.44
+1.10%
18,500
09/22/2025
1.45
1.45
1.42
1.42
-0.25%
7,400
09/19/2025
1.45
1.45
1.40
1.42
-4.76%
17,015
09/17/2025
1.50
1.50
1.49
1.49
+0.32%
15,500
09/16/2025
1.49
1.49
1.49
1.49
-0.77%
1,063
09/15/2025
1.49
1.52
1.49
1.50
+0.53%
12,750
09/12/2025
1.48
1.52
1.48
1.49
+3.01%
2,142