Afternoon Movers; Markets Moved Higher

SandRidge Energy SD +23.1% after announcing $1B contract with Mississippee

Akamai Technologies AKAM +18.6% after announcing it will acquire Contendo

Micron Technologies MU +15.7% on positive earnings and guidance

American Greetings AM -21.1% on poor earnings

Vivus VVUS -16.6% on negative notes from Roth Capital

Herman Miller MLHR -14.8% on poor Q2 earnings