The Morningstar Dictionary: Standard Deviation

This popular measure gives investors a sense of how volatile a fund's performance has been.

Wendy Stein 8 November, 2017 | 6:00PM Christian Charest

 

 

Wendy Stein: No concepts are more fundamental to investing than risk and return. And when it comes to risk, the most widely used measure to determine the investment risk level of mutual funds and ETFs is standard deviation.

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About Author

Wendy Stein

Wendy Stein  Wendy Stein is a product manager at Morningstar Canada. She manages products for investment research, portfolio construction and retirement planning. Before joining Morningstar in 2010, she worked as a product manager in the mutual- fund industry for Invesco and Manulife in Canada and Legg Mason in the UK.