GAINERS -- Year to date /// LOSERS -- Year to date

EV3 Inc. 68.0% /// ValueVision Media Inc. -63.1%

IntriCon Corp. 65.9 /// Hutchinson Tech. -57.8

Medtox Scientific Inc. 58.7 /// Compellent Technologies Inc. -46.6

Winmark Corp. 55.9 /// Lakes Entertainment Inc. -39.0

Vascular Solutions Inc. 49.0 /// Piper Jaffray Cos. -36.3

CyberOptics Corp. 44.3 /// The Mosaic Co. -34.6

FSI Intl. Inc. 42.5 /// Digital Angel Corp. -33.1

Stratasys Inc. 42.5 /// Alliant Techsystems Inc. -29.7

Famous Dave's of America 38.0 /// Surmodics Inc. -27.6

Virtual Radiologic Corp. 34.5 /// Entegris Inc. -24.8

Select Comfort Corp. 34.2 /// Analysts International Corp. -24.5

MakeMusic Inc. 30.6 /// Apogee Enterprises Inc. -21.7

Tennant Co. 30.5 /// HickoryTech Corp. -21.1

Deluxe Corp. 30.1 /// Multiband Corp. -20.0

Life Time Fitness Inc. 27.5 /// Otter Tail Corp. -19.9

Polaris Industries Inc. 27.1 /// Christopher & Banks Corp. -17.5

ATS Medical Inc. 22.9 /// G & K Services Inc. -17.3

TCF Financial Corp. 22.7 /// Medtronic Inc. -16.8

Caribou Coffee Co Inc. 22.7 /// H.B. Fuller Co. -16.0

Fastenal Co. 21.7 /// Techne Corp. -15.5

WSI Industries Inc. 19.7 /// Rochester Medical Corp. -15.1

ADC Telecommunications Inc. 19.3 /// Moneygram International Inc. -14.9

Mocon Inc. 18.9 /// Communications Systems Inc. -14.2

Appliance Recycling Ctrs. Amr. 18.5 /// AGA Medical Holdings Inc. -14.1

Synovis Life Technologies In. 18.4 /// Best Buy Co. Inc. -13.9

Toro Co. 18.3 /// Supervalu Inc. -13.7

Image Sensing Systems Inc. 18.0 /// Digital River Inc. -11.4

Nortech Systems Inc. 15.4 /// Digi International Inc. -9.3

American Medical Sys. Hldgs. 14.7 /// Buffalo Wild Wings Inc. -9.2

Valspar Corp. 12.2 /// Rimage Corp. -8.7

Hawkins Inc. 11.6 /// Nash Finch Co. -7.0

Lawson Software Inc. 9.8 /// S&P 500 Index -6.7

Insignia Systems Inc. 9.6 /// UnitedHealth Group Inc. -6.4

HMN Financial Inc. 9.0 /// Ameriprise Financial Inc. -6.1

The Dolan Co. 8.9 /// C.H. Robinson Worldwide Inc. -4.4

Canterbury Park Holding Corp. 8.2 /// Xata Corp. -4.2

Capella Education Co. 8.0 /// 3M Co. -3.2

Allete Inc. 7.5 /// Angeion Corp. -2.9

OneBeacon Insurance Group 6.8 /// Cardiovascular Systems Inc. -2.4

Hormel Foods Corp. 6.4 /// Granite City Food & Brewery -2.3

NVE Corp. 5.5 /// Russell 2000 Index -1.9

Imation Corp. 5.4 /// St. Jude Medical Inc. -1.9

Navarre Corp. 2.8 /// Clearfield Inc. -1.2

Fair Isaac Corp. 2.4 /// Bloomberg Star Tribune 100 Index -1.0

Target Corp. 2.3 /// Xcel Energy Inc. -0.6

Patterson Cos. Inc. 2.3 /// Arctic Cat Inc. -0.5

MTS Systems Corp. 1.9 /// Datalink Corp. -0.5

General Mills Inc. 1.7 /// U.S. Bancorp -0.3

Ecolab Inc. 1.4 /// Graco Inc. -0.1

Donaldson Co. Inc. 0.8

Pentair Inc. 0.8

Gander Mountain Co. 0.8

Vital Images Inc. 0.5

Regis Corp. 0.5

Source: Bloomberg