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.

Roundhill Innovation-100 0DTE Covered Call Strategy ETF (QDTE) had 180-Day Put-Call Ratio (Open Interest) of 9.7941 for 2026-01-07.

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)	0.1922
Historical Volatility (Parkinson)	0.1120
Implied Volatility (Calls)	0.1910
Implied Volatility (Puts)	0.5925
Implied Volatility (Mean)	0.3918
Put-Call Implied Volatility Ratio	3.1018
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	2.0000
Put-Call Ratio (Open Interest)	9.7941