Stocks expected to have increasing option volume: USAR HAS COPA EWZ PBR

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Petrobras - Petroleo Brasileiro S.A. (NYSE: PBR) Delayed: 26.16 +0.54 (2.11%)
Previous Close $25.62    52 Week High $12.56 
Open $25.96    52 Week Low $2.71 
Day High $26.39    P/E N/A 
Day Low $25.79    EPS $0.00 
Volume 25,130,430