Put-Call Ratio (Open Interest) (10-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

VinFast Auto Ltd. (VFS) had 10-Day Put-Call Ratio (Open Interest) of 0.2185 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2924
Historical Volatility (Parkinson)	0.2341
Implied Volatility (Calls)	0.6552
Implied Volatility (Puts)	0.4884
Implied Volatility (Mean)	0.5718
Put-Call Implied Volatility Ratio	0.7455
Implied Volatility Skew	0.1603
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.2185