Single Value Input (Typically Closing Prices)

Jurik Volatility (Volty)

**Standard Deviation**
**Relative Volatility Index (RVI)**
Ulcer Index
ARCH/GARCH Models
Exponential Weighted Moving Average (EWMA) Volatility
Conditional Volatility
Volatility Ratio
Close-to-Close Volatility
Volatility of Volatility (VOV)
Volatility Cone
Bollinger Bands
Stochastic Volatility: Typically modeled using closing prices, but can incorporate other price information

OHLC Input (Open, High, Low, Close)

Garman-Klass Volatility
Rogers-Satchell Volatility
Yang-Zhang Volatility
Parkinson Volatility (High, Low)
Average True Range (ATR) (High, Low, Close)
Chaikin Volatility (High, Low)
Keltner Channels (typically Close, High, Low)
High-Low Volatility (High, Low)