How to assess ETF Volatility/Risk

Here's a link to the Chart School article on the Standard Deviation indicator:

stockcharts.com/school/doku.php?st=volatility&id=chart_school:technical_indicators:standard_deviation_volatility

If that is what you want, you can add it to a chart style. Note that although the default parameter is 10 (two weeks on a daily chart), you could change that to 21 (a month), or 63 (a quarter) or whatever your time horizon.

If you have a number of stocks/ETFs you are interested in, you could add them to a list, scan for membership in that list "[favorites list is ??]" and then add "rank by [Std Deviation(x) ". The results page will be sorted by the StdDeviation value. You can then save back to the favorites list in that order.