Roth Positive on Ballard Power's (BLDP) Protonex Acquisition; Offers Commentary

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Ballard Power Systems, Inc. (NASDAQ: BLDP) Delayed: 4.37 --0 (-0%)
Previous Close $4.37    52 Week High $2.53 
Open $4.37    52 Week Low $1.11 
Day High $4.37    P/E N/A 
Day Low $4.37    EPS $0.00 
Volume 13,633