B.Riley Downgrades Ribbon Communications (RBBN) to Neutral

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(NASDAQ: RBBN) Delayed: 3.12 -0.22 (6.59%)
Previous Close $3.34    52 Week High
Open $3.30    52 Week Low
Day High $3.30    P/E N/A 
Day Low $3.11    EPS
Volume 897,047