After-hours movers: Root surges on buyout talk, Alcoa falls on downgrade

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Alcoa Inc (NYSE: AA) Delayed: 54.10 --0 (-0%)
Previous Close $54.10    52 Week High $31.96 
Open $54.10    52 Week Low $6.14 
Day High $54.10    P/E N/A 
Day Low $54.10    EPS $-2.14 
Volume 16,379       

Alvarion Ltd (NASDAQ: ALVR) Delayed: 9.81 --0 (-0%)
Previous Close $9.81    52 Week High $4.20 
Open $9.81    52 Week Low $0.18 
Day High $9.81    P/E N/A 
Day Low $9.81    EPS $-3.20 
Volume 129,125       

(NASDAQ: CDMO) Delayed: 12.49 --0 (-0%)
Previous Close $12.49    52 Week High
Open $12.49    52 Week Low
Day High $12.49    P/E N/A 
Day Low $12.49    EPS
Volume 401,459       

(NASDAQ: ROOT) Delayed: 55.69 --0 (-0%)
Previous Close $55.69    52 Week High
Open $55.69    52 Week Low
Day High $55.69    P/E N/A 
Day Low $55.69    EPS
Volume 691