| | Cadiz Inc | Pollution & Treatment Controls | Industrials | -2.84 | -10.70 | -15.56 | -14.29 | -30.49 | -36.90 | 13.25 | 13.62 |
| | Ceco Environmental Corp | Pollution & Treatment Controls | Industrials | 0.41 | -10.64 | -15.94 | -21.94 | 1.23 | 31.61 | 136.17 | 305.05 |
| | Euro Tech Holdings Co Ltd | Pollution & Treatment Controls | Industrials | 3.82 | 1.49 | -19.53 | -20.00 | 10.12 | 3.03 | -16.56 | 7.03 |
| | Fuel Tech Inc | Pollution & Treatment Controls | Industrials | -0.30 | -0.60 | -4.07 | -2.37 | 26.92 | -45.54 | 66.63 | 47.32 |
| | Energy Recovery Inc | Pollution & Treatment Controls | Industrials | 0.00 | 1.03 | -7.32 | -23.40 | -38.16 | -55.35 | -63.50 | -66.05 |
| | ClearSign Technologies Corp | Pollution & Treatment Controls | Industrials | 3.22 | -8.55 | -23.93 | -14.40 | -48.06 | -65.10 | -62.00 | -67.74 |
| | TOMI Environmental Solutions Inc | Pollution & Treatment Controls | Industrials | 2.55 | 16.67 | -3.59 | -32.76 | -5.63 | -46.33 | -27.48 | -50.76 |
| | LiqTech International Inc | Pollution & Treatment Controls | Industrials | -9.35 | -21.82 | -41.05 | -44.69 | -77.58 | -84.78 | -81.62 | -88.79 |
| | PureCycle Technologies Inc | Pollution & Treatment Controls | Industrials | -0.25 | -10.71 | -37.48 | -47.45 | -28.07 | -72.97 | -57.11 | -26.32 |
| | PureCycle Technologies Inc Un | Pollution & Treatment Controls | Industrials | 1.39 | -7.42 | -19.37 | -19.37 | -70.29 | -58.38 | -66.07 | -37.57 |
| | Rain Enhancement Technologies Holdco Inc Cl A | Pollution & Treatment Controls | Industrials | -8.72 | -13.23 | -5.46 | -63.39 | -71.37 | -87.86 | -90.82 | -24.70 |
| | Cadiz Inc Dep. Pfd (Rep. 1/1000th Share Pfd A) | Pollution & Treatment Controls | Industrials | -0.80 | -4.55 | -4.38 | -3.68 | 10.08 | 16.43 | 69.05 | 73.15 |
| | PureCycle Technologies Inc Wt | Pollution & Treatment Controls | Industrials | 15.31 | -6.41 | -56.07 | -73.43 | -26.62 | -85.10 | -77.73 | -64.12 |
| | 374Water Inc | Pollution & Treatment Controls | Industrials | -4.26 | -17.63 | -23.35 | 24.37 | -15.43 | -57.64 | -82.38 | -79.86 |
| | Zurn Elkay Water Solutions Corp | Pollution & Treatment Controls | Industrials | 0.71 | -2.31 | -0.13 | -0.43 | -3.20 | 0.05 | 30.38 | 82.15 |
| | Zone Frontier Inc Cl B | Pollution & Treatment Controls | Industrials | 0.23 | -0.84 | -15.64 | -82.60 | -61.29 | -93.73 | -89.80 | -96.27 |
| | Veralto Corp | Pollution & Treatment Controls | Industrials | 0.47 | 2.38 | 2.33 | 5.24 | 8.16 | -5.53 | -13.58 | 31.32 |
| | Arq Inc | Pollution & Treatment Controls | Industrials | -3.56 | 4.64 | -6.88 | -9.78 | -4.25 | -70.15 | -61.55 | -38.67 |
| | Aduro Clean Technologies Inc | Pollution & Treatment Controls | Industrials | -0.63 | -9.53 | -16.21 | -31.16 | 8.07 | -29.86 | 161.41 | 161.41 |
| | Birchtech Corp | Pollution & Treatment Controls | Industrials | -3.47 | -7.33 | 3.73 | -28.35 | -20.11 | -59.25 | -60.85 | -60.85 |
| | Rain Enhancement Technologies Holdco Inc Wt | Pollution & Treatment Controls | Industrials | 0.00 | -10.53 | 21.43 | -8.06 | -17.19 | -3.97 | -51.43 | -51.43 |