NIO Inc. (NIO) call put ratio 2.2 calls to 1 put on flat option IV

Go back to NIO Inc. (NIO) call put ratio 2.2 calls to 1 put on flat option IV
NUVEEN MUNICIPAL OPPORTUNITY FUND, Inc. (NYSE: NIO) Delayed: 3.79 -0.01 (0.26%)
Previous Close $3.80    52 Week High $14.86 
Open $3.74    52 Week Low $13.31 
Day High $3.85    P/E N/A 
Day Low $3.72    EPS $0.00 
Volume 36,383,372