Put-Call Ratio (Open Interest) (180-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.

WisdomTree Artificial Intelligence and Innovation Fund (WTAI) had 180-Day Put-Call Ratio (Open Interest) of 0.1816 for 2026-01-20.

For much more extensive volatility insights, check out our new product VolVue:

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
Download data in CSV, Excel, JSON, or XML format
Up to 20 years of data history
52-Week Rank and Percentile for all metrics and time frames

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2495
Historical Volatility (Parkinson)	0.1911
Implied Volatility (Calls)	0.3123
Implied Volatility (Puts)	0.2920
Implied Volatility (Mean)	0.3022
Put-Call Implied Volatility Ratio	0.9350
Implied Volatility Skew	0.0489
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.1816