| | Arq Inc | Pollution & Treatment Controls | Industrials | 0.14 | -9.60 | -3.97 | 116.42 | 119.03 | 119.03 | 119.03 | 119.03 |
| | PureCycle Technologies Inc Un | Pollution & Treatment Controls | Industrials | 0.00 | 0.00 | 1.36 | 83.09 | 16.72 | -7.89 | -32.09 | -78.66 |
| | Atmus Filtration Technologies Inc | Pollution & Treatment Controls | Industrials | 0.13 | 2.20 | -4.36 | 36.35 | 46.08 | 41.89 | 41.89 | 41.89 |
| | Ceco Environmental Corp | Pollution & Treatment Controls | Industrials | 1.21 | 2.78 | 8.98 | 19.22 | 27.97 | 112.34 | 122.89 | 122.89 |
| | Veralto Corp | Pollution & Treatment Controls | Industrials | 2.02 | 2.24 | 10.06 | 14.33 | 34.09 | 16.43 | 16.43 | 16.43 |
| | Federal Signal Corp | Pollution & Treatment Controls | Industrials | 0.78 | 2.42 | 4.78 | 8.77 | 26.80 | 65.86 | 172.37 | 110.99 |
| | Fuel Tech Inc | Pollution & Treatment Controls | Industrials | 0.83 | -6.15 | 7.02 | 7.49 | 14.02 | -5.43 | 3.39 | -39.00 |
| | Euro Tech Holdings Co Ltd | Pollution & Treatment Controls | Industrials | -1.12 | -1.12 | 12.74 | 4.73 | 21.23 | 22.92 | 16.45 | -31.75 |
| | Zurn Elkay Water Solutions Corp | Pollution & Treatment Controls | Industrials | 0.74 | 2.12 | 3.60 | 2.53 | 12.49 | 54.76 | 21.15 | -1.36 |
| | Spectaire Holdings Inc Wt | Pollution & Treatment Controls | Industrials | -10.74 | -23.63 | -37.12 | -1.13 | 57.21 | -30.20 | -30.20 | -30.20 |
| | CleanCore Solutions Inc Cl B | Pollution & Treatment Controls | Industrials | 0.59 | 6.94 | -3.14 | -3.14 | -3.14 | -3.14 | -3.14 | -3.14 |
| | PureCycle Technologies Inc | Pollution & Treatment Controls | Industrials | -3.93 | 12.79 | 1.51 | -4.78 | 27.79 | -21.00 | -34.79 | -61.18 |
| | 374Water Inc | Pollution & Treatment Controls | Industrials | -3.47 | 3.73 | 13.93 | -6.08 | 0.00 | -51.74 | -49.45 | -36.82 |
| | TOMI Environmental Solutions Inc | Pollution & Treatment Controls | Industrials | 5.56 | 15.38 | 19.88 | -10.71 | -26.47 | 10.29 | 4.17 | -74.83 |
| | Energy Recovery Inc | Pollution & Treatment Controls | Industrials | 1.37 | 4.45 | 0.79 | -13.19 | -27.56 | -42.65 | -18.51 | -21.68 |
| | ClearSign Technologies Corp | Pollution & Treatment Controls | Industrials | -0.73 | 1.23 | -7.02 | -17.65 | -2.09 | -31.38 | -33.33 | -79.60 |
| | PureCycle Technologies Inc Wt | Pollution & Treatment Controls | Industrials | -0.71 | 16.67 | -19.08 | -19.54 | -3.45 | -56.25 | -55.56 | -84.05 |
| | LiqTech International Inc | Pollution & Treatment Controls | Industrials | 3.45 | -3.57 | 0.37 | -21.05 | -26.23 | -16.56 | -35.10 | -95.38 |
| | Spectaire Holdings Inc | Pollution & Treatment Controls | Industrials | 2.87 | -3.51 | -40.04 | -66.72 | -75.41 | -88.82 | 452.49 | -20.59 |
| | China Natural Resources Inc | Pollution & Treatment Controls | Industrials | 1.33 | -0.78 | -11.81 | -72.55 | -44.62 | -57.29 | -73.54 | -86.20 |
