Standard Deviation Calculator /Beta
This tool will calculate the standard deviation in stock prices or returns for a firm or firms of your choice, using either monthly or weekly returns.
The output is the estimated standard deviation, as well as the rolling standard deviation for the last 8 quarters.
The tool was developed by Eran Ben Horin - eran [at] valuation.co.il
Special thanks goes to Jasim Muhammed for implementing the front and back, and also to Tal Mofkadi and Nir Yosef for their helpful comments.