Industry: Pollution & Treatment Controls -0.31%

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Biggest Gainers

Name Vol Diff
Alter NRG Corp 64.27K +9.76%
MFRI Inc 59.93K +4.41%
Federal Signal Corp 745.13K +1.46%
GreenHunter Resources Inc 32.94K +1.01%
LiqTech International Inc 36.26K +0.51%
Euro Tech Holdings Ltd 100.00 +0.49%

Biggest Losers

Name Vol Diff
Energy Recovery Inc 352.83K -4.63%
Clean Diesel Technologies Inc 276.16K -3.56%
Tennant Co 102.24K -2.77%
Calgon Carbon Corp 370.23K -2.63%
Advanced Emissions Solutions Inc 84.96K -1.77%
Fuel Tech Inc 53.52K -1.75%

Most Active Large Companies

Name Vol Diff
Federal Signal Corp 745.13K +1.46%
Calgon Carbon Corp 370.23K -2.63%
Energy Recovery Inc 352.83K -4.63%
Clarcor Inc 267.21K +0.00%
Donaldson Co 224.71K -0.14%
Tennant Co 102.24K -2.77%

Most Active Small Companies

Name Vol Diff
Clean Diesel Technologies Inc 276.16K -3.56%
Alter NRG Corp 64.27K +9.76%
MFRI Inc 59.93K +4.41%
LiqTech International Inc 36.26K +0.51%
GreenHunter Resources Inc 32.94K +1.01%
ClearSign Combustion Corp 15.62K -1.37%
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