Standard deviation, while common, inadequately captures investment risk due to its equal treatment of gains and losses and ...

You’ve probably heard investing professionals talk about risk-adjusted returns. This is a way of measuring the performance of an investment that factors in risk—specifically, the extra risk required ...

You may have heard people say that investing involves a tradeoff between risk vs. return. And that’s typically true. Investors usually need to take on greater risk to achieve higher returns. But what ...

In response to my article, Is the Stock Market Too Concentrated?, which relied upon standard-deviation calculations to assess investment risk, a reader wrote: “My problem [with your argument] is ...