Morning Market Movers

Vitacost.com

rose 27.26% to $7.99 after the company agreed to be acquired by The Kroger Co

for $8.00 per share cash. Shutterfly

jumped 15.01% to $50.04 on rumors the company may seek a buyer for itself. Zogenix

shares gained 11.61% to $2.22 after the company provided an update on the development of abuse deterrent formulations Of Zohydro ER. The Greenbrier Companies

climbed 10.40% to $63.71 after the company reported upbeat third-quarter earnings and lifted its full-year outlook. Rackspace Hosting

shares surged 7.23% to $36.19 after TechCrunch reported that Rackspace may be considering taking the company private, according to multiple sources. DragonWave

gained 7.08% to $2.12 after dropping 5.71% on Tuesday. Constellation Brands

rose 6.52% to $94.14 after the company reported upbeat results for its fiscal first quarter and lifted its FY15 forecast outlook. SolarCity

climbed 6.09% to $75.56. Canaccord Genuity initiated coverage on SolarCity with a Buy rating and a $94.00 price target. Canadian Solar

gained 3.78% to $31.88 after Canaccord started coverage of the company with a Buy rating and $43 price target.