| 374Water Inc | Pollution & Treatment Controls | Industrials | -3.49 | 42.78 | 44.05 | -24.30 | 4.08 | -70.24 | -76.19 | -90.96 |
| Aduro Clean Technologies Inc | Pollution & Treatment Controls | Industrials | -1.37 | 5.60 | 0.26 | 39.85 | 120.92 | 170.82 | 170.82 | 170.82 |
| Arq Inc | Pollution & Treatment Controls | Industrials | 1.05 | 4.47 | 39.86 | 51.67 | 47.89 | 14.88 | 133.23 | 133.23 |
| Ceco Environmental Corp | Pollution & Treatment Controls | Industrials | -2.36 | -4.98 | 12.99 | 66.75 | 83.24 | 60.87 | 247.48 | 304.53 |
| CleanCore Solutions Inc Cl B | Pollution & Treatment Controls | Industrials | 6.19 | 42.92 | 67.32 | 255.44 | 507.08 | 283.24 | 96.00 | 96.00 |
| ClearSign Technologies Corp | Pollution & Treatment Controls | Industrials | -1.50 | -0.97 | -1.81 | -10.12 | -23.00 | -19.79 | -52.50 | -38.49 |
| DevvStream Corp | Pollution & Treatment Controls | Industrials | -9.09 | -4.17 | -42.74 | -55.77 | -41.01 | -78.30 | -78.30 | -78.30 |
| Energy Recovery Inc | Pollution & Treatment Controls | Industrials | -1.39 | -3.53 | 3.95 | 14.78 | -5.01 | -13.56 | -49.16 | -38.35 |
| Euro Tech Holdings Co Ltd | Pollution & Treatment Controls | Industrials | -5.88 | 3.64 | 5.86 | 15.32 | -6.57 | -15.79 | -19.29 | -16.40 |
| Federal Signal Corp | Pollution & Treatment Controls | Industrials | -3.13 | -4.15 | 17.42 | 31.15 | 51.99 | 32.09 | 106.71 | 208.20 |
| Fuel Tech Inc | Pollution & Treatment Controls | Industrials | -2.67 | 5.42 | 11.03 | 63.13 | 194.95 | 186.27 | 158.41 | 116.30 |
| LiqTech International Inc | Pollution & Treatment Controls | Industrials | 4.01 | -1.97 | -15.49 | 16.01 | 32.47 | -34.64 | -45.39 | -47.86 |
| PureCycle Technologies Inc | Pollution & Treatment Controls | Industrials | -2.32 | 9.80 | 1.93 | 46.56 | 38.74 | 139.77 | 53.82 | 56.69 |
| PureCycle Technologies Inc Un | Pollution & Treatment Controls | Industrials | 0.00 | 0.00 | 2.48 | 109.41 | 63.30 | 145.18 | 29.93 | 66.51 |
| PureCycle Technologies Inc Wt | Pollution & Treatment Controls | Industrials | -3.09 | 23.68 | 3.30 | 95.83 | 51.61 | 213.33 | 38.24 | 42.42 |
| Rain Enhancement Technologies Holdco Inc Cl A | Pollution & Treatment Controls | Industrials | 10.63 | 19.20 | 2.67 | -13.48 | 67.39 | -47.26 | 266.67 | -39.47 |
| Rain Enhancement Technologies Holdco Inc Wt | Pollution & Treatment Controls | Industrials | 0.00 | 0.00 | -11.50 | -7.89 | 38.34 | -60.00 | -60.00 | -60.00 |
| TOMI Environmental Solutions Inc | Pollution & Treatment Controls | Industrials | -1.35 | -3.30 | -15.92 | -0.01 | -7.44 | -6.91 | -30.76 | -8.46 |
| Veralto Corp | Pollution & Treatment Controls | Industrials | -0.29 | -2.71 | 1.10 | 5.00 | 6.68 | -4.63 | 25.65 | 25.65 |
| Zurn Elkay Water Solutions Corp | Pollution & Treatment Controls | Industrials | -1.15 | -1.75 | 18.76 | 24.56 | 28.59 | 42.37 | 57.74 | 64.72 |