Put-Call Ratio (Volume) (90-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Western Digital Corporation (WDC) had 90-Day Put-Call Ratio (Volume) of 0.9624 for 2026-05-21.

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Figures for 2026-05-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6796
Historical Volatility (Parkinson)	0.6226
Implied Volatility (Calls)	0.8126
Implied Volatility (Puts)	0.8171
Implied Volatility (Mean)	0.8148
Put-Call Implied Volatility Ratio	1.0057
Implied Volatility Skew	0.0061
Option Statistics
Put-Call Ratio (Volume)	0.9624
Put-Call Ratio (Open Interest)	0.8013