| | Zone Frontier Inc Cl B | Pollution & Treatment Controls | Industrials | -5.83 | -7.62 | -15.18 | -86.20 | -61.20 | -94.78 | -90.95 | -96.12 |
| | LiqTech International Inc | Pollution & Treatment Controls | Industrials | 1.04 | -2.35 | 33.54 | -22.54 | -55.03 | -73.59 | -75.63 | -83.16 |
| | 374Water Inc | Pollution & Treatment Controls | Industrials | -3.69 | -3.40 | 25.20 | 39.11 | 14.65 | -8.88 | -80.56 | -77.48 |
| | Energy Recovery Inc | Pollution & Treatment Controls | Industrials | -0.85 | -7.42 | -11.29 | -25.80 | -29.47 | -53.83 | -58.49 | -69.48 |
| | ClearSign Technologies Corp | Pollution & Treatment Controls | Industrials | 6.65 | -4.47 | -17.56 | 1.58 | 3.22 | -23.05 | -48.67 | -62.98 |
| | TOMI Environmental Solutions Inc | Pollution & Treatment Controls | Industrials | -7.59 | -9.88 | -17.05 | -35.60 | -18.73 | -50.83 | -34.23 | -55.76 |
| | Rain Enhancement Technologies Holdco Inc Wt | Pollution & Treatment Controls | Industrials | 0.00 | -9.24 | 10.51 | -22.34 | -9.44 | -14.21 | -53.43 | -53.43 |
| | Birchtech Corp | Pollution & Treatment Controls | Industrials | 6.67 | 27.54 | 26.62 | -24.79 | -19.27 | -48.24 | -50.42 | -50.42 |
| | Arq Inc | Pollution & Treatment Controls | Industrials | -0.49 | -6.82 | -7.66 | -27.82 | 7.89 | -70.71 | -66.45 | -38.07 |
| | PureCycle Technologies Inc Wt | Pollution & Treatment Controls | Industrials | 0.00 | -10.00 | -50.97 | -49.60 | 50.00 | -69.49 | -44.00 | -37.00 |
| | Rain Enhancement Technologies Holdco Inc Cl A | Pollution & Treatment Controls | Industrials | -2.49 | -9.97 | -21.82 | -67.70 | -81.62 | -86.28 | -90.89 | -21.13 |
| | PureCycle Technologies Inc | Pollution & Treatment Controls | Industrials | 0.53 | -4.98 | -16.86 | -34.25 | 4.38 | -58.46 | -29.82 | -3.38 |
| | Cadiz Inc | Pollution & Treatment Controls | Industrials | 5.64 | -2.47 | 10.22 | -12.53 | -26.45 | -15.64 | 10.90 | -2.73 |
| | Euro Tech Holdings Co Ltd | Pollution & Treatment Controls | Industrials | 1.99 | -2.53 | -6.67 | -19.37 | 28.34 | 14.01 | -9.41 | 6.05 |
| | Veralto Corp | Pollution & Treatment Controls | Industrials | -0.80 | 0.41 | -1.64 | 12.46 | 5.16 | -11.42 | -11.90 | 12.21 |
| | Fuel Tech Inc | Pollution & Treatment Controls | Industrials | -1.12 | 1.73 | 24.82 | 14.29 | 40.80 | -46.99 | 74.26 | 51.72 |
| | Zurn Elkay Water Solutions Corp | Pollution & Treatment Controls | Industrials | 0.74 | -0.24 | -6.38 | -7.82 | 3.90 | -3.46 | 37.62 | 68.03 |
| | Cadiz Inc Dep. Pfd (Rep. 1/1000th Share Pfd A) | Pollution & Treatment Controls | Industrials | -0.45 | -1.28 | -2.32 | -3.86 | 15.80 | 19.86 | 79.02 | 76.57 |
| | Aduro Clean Technologies Inc | Pollution & Treatment Controls | Industrials | -0.32 | -2.40 | -19.45 | -16.73 | 8.07 | -4.55 | 196.24 | 196.24 |
| | Ceco Environmental Corp | Pollution & Treatment Controls | Industrials | -1.91 | -11.31 | -9.24 | -29.39 | 23.45 | 35.84 | 148.32 | 328.36 |
