TD Cowen Upgrades Spero Therapeutics (SPRO) to Buy

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SmartPros Ltd. (NASDAQ: SPRO) Delayed: 1.04 --0 (-0%)
Previous Close $1.04    52 Week High $3.85 
Open $1.04    52 Week Low $1.25 
Day High $1.04    P/E N/A 
Day Low $1.04    EPS $-0.28 
Volume 20