This screener lists stocks that currently match StdDev(20) Trending Up Last 7 Days, one of the Standard Deviation screens. In trading, the Standard Deviation is commonly used as a technical indicator to assess an asset's price volatility. Specifically, it measures how much the price of an asset deviates from its mean (average) price. The list is updated daily: open a chart for any ticker, or customize the screen, set an alert and backtest it as a trading strategy.