Put-Call Ratio (Open Interest) (30-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.

iShares Blockchain and Tech ETF (IBLC) 30-Day Put-Call Ratio (Open Interest) data is not available for 2025-07-23.

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

10-Day 20-Day 30-Day 60-Day
90-Day 120-Day 150-Day 180-Day

Figures for 2025-07-23

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4376
Historical Volatility (Parkinson)	0.3510
Implied Volatility (Calls)	0.3815
Implied Volatility (Puts)	0.3991
Implied Volatility (Mean)	0.3903
Put-Call Implied Volatility Ratio	1.0461
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	--