Industry: Pollution & Treatment Controls 0.62%

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Biggest Gainers

Name Vol Diff
Heritage-Crystal Clean Inc 43.90K +3.90%
Fuel Tech Inc 272.98K +1.91%
Federal Signal Corp 513.05K +1.16%
Energy Recovery Inc 367.14K +0.83%
Ceco Environmental Corp 81.80K +0.30%
Calgon Carbon Corp 434.26K +0.30%

Biggest Losers

Name Vol Diff
MFRI Inc 181.71K -19.29%
Clean Diesel Technologies Inc 855.23K -7.60%
Alter NRG Corp 110.62K -4.49%
ClearSign Combustion Corp 70.41K -2.18%
GreenHunter Resources Inc 40.72K -2.00%
Clarcor Inc 380.34K -0.80%

Most Active Large Companies

Name Vol Diff
Federal Signal Corp 513.05K +1.16%
Calgon Carbon Corp 434.26K +0.30%
Clarcor Inc 380.34K -0.80%
Energy Recovery Inc 367.14K +0.83%
Donaldson Co 332.65K +0.20%
Fuel Tech Inc 272.98K +1.91%

Most Active Small Companies

Name Vol Diff
Clean Diesel Technologies Inc 855.23K -7.60%
MFRI Inc 181.71K -19.29%
Alter NRG Corp 110.62K -4.49%
ClearSign Combustion Corp 70.41K -2.18%
GreenHunter Resources Inc 40.72K -2.00%
Euro Tech Holdings Ltd 6.62K -0.21%
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