Top Analyst Actions: GWW, GRPN, GD, HA, LRE

W.W. Grainger GWW Gabelli & Co raises rating to buy from hold

Groupon GRPN Wunderlich raises to buy from hold, price target to $10.00 from $6.00

General Dynamics GD RBC Capital Mkts raises to outperform from sector perform with $152.00 price target

Hawaiian Holdings HA Imperial Capital raises to outperform from in-line, price target to $27.00 from $24.00

LRR Energy L.P. LRE UBS lowers to sell from neutral, price target to $5.00 from $7.00

Ethan Allen ETH Gabelli & Co lowers to hold from buy

Kofax KFX Canaccord Genuity lowers to hold from buy, raises price target to $11.00 from $9.00

Finish Line FINL B. Riley & Co. lowers to neutral from buy, price target to $27.00 from $30.00

Twitter TWTR Pivotal Research Group lowers to hold from buy with $51.00 price target

Micron MU MKM Partners starts coverage at neutral with $33.00 price target

Aldeyra Therapeutics ALDX Chardan Capital Markets starts at buy with $16.00 price target

Polaris Inds PII Stifel starts at buy with $168.00 price target

Harley-Davidson HOG Stifel starts at buy with $75.00 price target

Brunswick BC Stifel starts at buy with $60.00 price target

Hyperion Therapeutics HPTX Brean Capital raises price target to $51.00 from $40.00 with buy rating

AtriCure ATRC Canaccord Genuity raises price target to $28.00 from $26.00 with buy rating

Whiting Petroleum WLL Canaccord Genuity lowers price target to $35.00 from $44.00 with buy rating

Cognex CGNX Canaccord Genuity raises price target to $60.00 from $55.00 with buy rating

IHS IHS RBC Capital Mkts lowers price target to $127.00 from $133.00 with outperform rating