Std Dev Calcuator R

Calculates the standard deviation of returns for a symbol from its own price history. Closing prices are pulled for each date in the range with one formula per row, period returns are computed between consecutive closes, and the sheet reports the dispersion of that series with the current last price for context. Change the ticker or the start and end dates and the price column refills. The block can be copied across columns when you want to compare volatility of returns for several names at once.