Fluctuations estimated from a historical time series.

Historical statistical volatility is a measure of how much the stock price fluctuated during a given time period.

The annualized standard deviation of percent variation in futures prices over a specific period of time; an indicator of past v olatility in the marketplace.

Historical volatility is a measure of past price or yield fluctuations in a given period. It is normally expressed as a percentage and is calculated as the annualised standard deviation of the percentage change in daily price.

Definition HV. Degree or level of up and down movement in a value over time. In securities trading, it refers to price fluctuation over a standard period such as a day, week, month, quarter, or year. [..]

Volatility estimated from a historical time series.

The volatility of a financial instrument based on historical returns. This phrase is used particularly when it is wished to distinguish between the actual volatility of an instrument in the past, and the current volatility implied by the market.

Historical volatility is the realized volatility of a financial instrument over a given time period.

A statistical measure of the volatility (specifically, the annualized standard deviation) of a futures contract, security, or other instrument over a specified number of past trading days.

measure of the range of stock prices in the previous year, in percentage terms

Fluctuations estimated from a historical time series.