| | Birchtech Corp | Pollution & Treatment Controls | Industrials | -0.96 | -5.05 | -26.33 | 176.00 | 194.66 | 293.16 | 191.55 | 191.55 |
| | Ceco Environmental Corp | Pollution & Treatment Controls | Industrials | 0.06 | 10.31 | -4.21 | 1.10 | 24.91 | 157.38 | 174.08 | 332.31 |
| | Rain Enhancement Technologies Holdco Inc Wt | Pollution & Treatment Controls | Industrials | 0.00 | 0.05 | 0.00 | -28.57 | 21.21 | 110.53 | -42.86 | -42.86 |
| | 374Water Inc | Pollution & Treatment Controls | Industrials | 6.06 | 28.21 | 30.11 | 48.31 | 14.38 | -1.82 | -70.59 | -92.27 |
| | Zurn Elkay Water Solutions Corp | Pollution & Treatment Controls | Industrials | 1.63 | 4.22 | -8.73 | -3.20 | 0.63 | 36.26 | 46.04 | 135.28 |
| | Federal Signal Corp | Pollution & Treatment Controls | Industrials | -0.81 | 4.03 | -6.63 | -1.71 | -9.10 | 41.52 | 37.49 | 117.99 |
| | Aduro Clean Technologies Inc | Pollution & Treatment Controls | Industrials | 1.03 | -7.04 | -6.48 | -4.50 | -13.08 | 106.68 | 154.82 | 154.82 |
| | Euro Tech Holdings Co Ltd | Pollution & Treatment Controls | Industrials | 0.00 | -2.49 | -1.68 | -6.40 | -13.97 | -8.59 | -13.76 | 4.67 |
| | Veralto Corp | Pollution & Treatment Controls | Industrials | 0.29 | -3.20 | -7.69 | -14.30 | -16.46 | -10.49 | -1.76 | 3.29 |
| | Energy Recovery Inc | Pollution & Treatment Controls | Industrials | -0.29 | 2.32 | -37.10 | -26.95 | -33.46 | -38.92 | -32.85 | -53.46 |
| | TOMI Environmental Solutions Inc | Pollution & Treatment Controls | Industrials | -4.95 | 11.89 | -1.90 | -16.15 | -36.19 | -23.86 | -2.76 | 7.60 |
| | PureCycle Technologies Inc Un | Pollution & Treatment Controls | Industrials | 0.00 | 0.81 | -27.82 | -27.82 | -40.95 | -16.92 | -17.00 | -29.94 |
| | Rain Enhancement Technologies Holdco Inc Cl A | Pollution & Treatment Controls | Industrials | -0.90 | -23.62 | 7.17 | -58.01 | -45.03 | 43.26 | -62.12 | -67.32 |
| | LiqTech International Inc | Pollution & Treatment Controls | Industrials | -9.40 | -12.90 | -26.43 | -14.01 | -46.42 | -13.79 | -55.88 | -64.38 |
| | ClearSign Technologies Corp | Pollution & Treatment Controls | Industrials | 1.13 | -4.29 | -38.41 | -41.36 | -51.18 | -53.20 | -64.65 | -56.20 |
| | PureCycle Technologies Inc | Pollution & Treatment Controls | Industrials | 5.86 | 2.19 | -36.87 | -37.85 | -57.25 | -28.11 | -7.44 | -15.54 |
| | Fuel Tech Inc | Pollution & Treatment Controls | Industrials | 0.79 | 1.60 | -10.56 | -22.09 | -58.63 | 27.01 | 10.43 | 3.25 |
| | Arq Inc | Pollution & Treatment Controls | Industrials | 7.30 | 31.58 | -29.97 | -26.69 | -66.22 | -44.93 | -62.18 | -24.47 |
| | DevvStream Corp | Pollution & Treatment Controls | Industrials | 20.34 | -22.07 | -31.29 | -50.47 | -73.60 | -75.42 | -93.97 | -93.97 |
| | PureCycle Technologies Inc Wt | Pollution & Treatment Controls | Industrials | 0.00 | -1.19 | 232.00 | 6.41 | -77.13 | -60.48 | -55.14 | -70.88 |
| | CleanCore Solutions Inc Cl B | Pollution & Treatment Controls | Industrials | -6.61 | 12.71 | 16.58 | 58.24 | -81.39 | -67.40 | -88.73 | -88.73 |
