Oppenheimer Downgrades ESS Inc. (GWH) to Perform

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(NYSE: GWH) Delayed: 0.62 +0.03 (5.08%)
Previous Close $0.59    52 Week High
Open $0.59    52 Week Low
Day High $0.62    P/E N/A 
Day Low $0.57    EPS
Volume 422,435