Increasing unusual option volume: WKHS HRTX

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HERON THERAPEUTICS (NASDAQ: HRTX) Delayed: 0.33 --0 (-0%)
Previous Close $0.33    52 Week High $31.32 
Open $0.33    52 Week Low $13.95 
Day High $0.33    P/E N/A 
Day Low $0.33    EPS $-3.29 
Volume 4,251