Increasing unusual option volume: OPTT LODE LBRT CMP SLNO AMKR STEM

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STEMCELLS (NYSE: STEM) Delayed: 2.90 -0.11 (3.65%)
Previous Close $3.01    52 Week High $3.08 
Open $3.10    52 Week Low $0.21 
Day High $3.10    P/E N/A 
Day Low $2.90    EPS $-0.49 
Volume 24,155