Historical Volatility (Parkinson) (90-Day)

Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.

Southwest Gas Corporation (SWX) had 90-Day Historical Volatility (Parkinson) of 0.2307 for 2024-05-20.

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

Figures for 2024-05-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2309
Historical Volatility (Parkinson)	0.2307
Implied Volatility (Calls)	0.1925
Implied Volatility (Puts)	0.2247
Implied Volatility (Mean)	0.2086
Put-Call Implied Volatility Ratio	1.1669
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.1555
Forward Price	78.39
Call Breakeven Price	80.74
Put Breakeven Price	62.35
Option Breakeven Price	78.47