Industry: Pollution & Treatment Controls 1.09%

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Biggest Gainers

Name Vol Diff
Tennant Co 68.19K +2.92%
Energy Recovery Inc 201.37K +2.02%
Federal Signal Corp 260.97K +1.58%
ClearSign Combustion Corp 76.75K +1.36%
Calgon Carbon Corp 322.02K +1.03%
Clarcor Inc 815.32K +1.02%

Biggest Losers

Name Vol Diff
BioteQ Environmental Technologies Inc 2.10K -7.14%
Alter NRG Corp 241.84K -5.88%
GLV Inc 17.95K -3.75%
GreenHunter Resources Inc 14.28K -2.04%
MFRI Inc 55.87K -1.92%
Euro Tech Holdings Ltd 400.00 -1.45%

Most Active Large Companies

Name Vol Diff
Clarcor Inc 815.32K +1.02%
Calgon Carbon Corp 322.02K +1.03%
Fuel Tech Inc 294.54K +0.72%
Federal Signal Corp 260.97K +1.58%
Donaldson Co 219.54K -0.05%
Energy Recovery Inc 201.37K +2.02%

Most Active Small Companies

Name Vol Diff
Clean Diesel Technologies Inc 463.38K +0.00%
Alter NRG Corp 241.84K -5.88%
MFRI Inc 55.87K -1.92%
GreenHunter Resources Inc 14.28K -2.04%
BioteQ Environmental Technologies Inc 2.10K -7.14%
Euro Tech Holdings Ltd 400.00 -1.45%
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