| | Ceco Environmental Corp | Pollution & Treatment Controls | Industrials | 0.64 | -3.51 | 15.77 | 10.51 | 30.03 | 132.62 | 122.09 | 122.09 |
| | China Natural Resources Inc | Pollution & Treatment Controls | Industrials | 5.48 | 0.89 | -9.00 | -22.65 | -44.75 | -53.82 | -73.48 | -87.20 |
| | Euro Tech Holdings Co Ltd | Pollution & Treatment Controls | Industrials | 0.00 | -8.65 | 7.64 | 21.58 | 15.75 | 6.29 | 5.62 | -26.09 |
| | Federal Signal Corp | Pollution & Treatment Controls | Industrials | 5.47 | 6.07 | 13.34 | 12.67 | 33.87 | 74.70 | 165.75 | 120.29 |
| | Fuel Tech Inc | Pollution & Treatment Controls | Industrials | 0.90 | -5.08 | -11.11 | 2.75 | 5.66 | -17.65 | -13.18 | -49.32 |
| | Energy Recovery Inc | Pollution & Treatment Controls | Industrials | 0.60 | -0.59 | -9.40 | -13.63 | -29.17 | -43.30 | -33.20 | -30.59 |
| | ClearSign Technologies Corp | Pollution & Treatment Controls | Industrials | 4.51 | -7.79 | 5.04 | -35.16 | -33.07 | -45.76 | -32.53 | -83.10 |
| | TOMI Environmental Solutions Inc | Pollution & Treatment Controls | Industrials | -2.64 | 0.31 | 32.79 | 5.15 | -19.80 | 60.71 | -12.90 | -69.66 |
| | LiqTech International Inc | Pollution & Treatment Controls | Industrials | 0.38 | -1.49 | -2.21 | -13.96 | -20.66 | -22.06 | -40.85 | -95.48 |
| | Spectaire Holdings Inc | Pollution & Treatment Controls | Industrials | -4.10 | 21.03 | -41.98 | -74.38 | -78.73 | -92.94 | 149.47 | -2.50 |
| | PureCycle Technologies Inc | Pollution & Treatment Controls | Industrials | -2.26 | -4.77 | 11.13 | -10.36 | 28.47 | -24.67 | -39.23 | -70.53 |
| | PureCycle Technologies Inc Wt | Pollution & Treatment Controls | Industrials | 10.66 | -6.90 | -4.26 | -28.57 | -3.57 | -54.24 | -56.59 | -84.62 |
| | 374Water Inc | Pollution & Treatment Controls | Industrials | 0.00 | -0.78 | -14.09 | -3.76 | 11.30 | -50.58 | -50.00 | -41.82 |
| | Zurn Elkay Water Solutions Corp | Pollution & Treatment Controls | Industrials | 0.74 | -2.00 | 0.34 | -1.14 | 6.88 | 40.50 | 10.86 | -5.61 |
| | Atmus Filtration Technologies Inc | Pollution & Treatment Controls | Industrials | 1.75 | 2.32 | 1.82 | 29.20 | 40.95 | 48.70 | 42.45 | 42.45 |
| | CleanCore Solutions Inc Cl B | Pollution & Treatment Controls | Industrials | -0.65 | 0.66 | -0.97 | -12.29 | -12.29 | -12.29 | -12.29 | -12.29 |
| | Veralto Corp | Pollution & Treatment Controls | Industrials | -0.66 | -3.53 | 5.23 | 14.19 | 27.88 | 16.06 | 16.06 | 16.06 |
| | Spectaire Holdings Inc Wt | Pollution & Treatment Controls | Industrials | 0.00 | 13.33 | -32.00 | -15.00 | 126.67 | -32.00 | -32.00 | -32.00 |
| | Arq Inc | Pollution & Treatment Controls | Industrials | 1.46 | -2.93 | -10.31 | 101.74 | 110.27 | 110.27 | 110.27 | 110.27 |
