For example, anaerobic endurance training promotes a decrease in body fat along with increasing cardiovascular function, muscle mass, strength, speed and power. With the increased intensity level of anaerobic endurance training, the potential for overtraining is accelerated.
The CBOE Gold ETF Volatility Index (Gold VIX, Ticker-GVZ) measures the market's expectation of 30-day volatility of gold prices by applying the VIX methodology to options on SPDR Gold Shares (Ticker-GLD) .Like other indexes using the VIX methodology, GVZ uses options spanning a wide range of strike prices. CBOE Gold ETF Volatility Index historical prices. 2  Historical Daily Prices-Spreadsheet with Closing Prices for Several Indexes. 3  Historical Month-end Prices-Spreadsheet with Closing Prices for Several Indexes. 4  In addition, Market Data Express gives users access to decades of historical options data.
Variance is a measure of distribution of returns and is not neccesarily bound by any time period. Volatility is a measure of the standard deviation (square root of the variance) over a certain time interval. In finance, variance and volatility both gives you a sense of an asset's risk. If the mean is the average return of an asset, variance and volatility can give you a sense of how much that asset either overperforms or under performs.