Building a portfolio with an optimizer takes minutes—and the results often look great on paper. But the real challenge is understanding how that portfolio is likely to behave over time, based on historical data.
Advisors must be able to explain an investment’s “personality” so clients know what to expect in both good markets and bad. A major part of that is volatility risk, commonly shown through standard deviation. But standard deviation only tells part of the story. To fully understand volatility risk, you also need skew and kurtosis. They reveal how returns behave in extreme markets—not just how much they move, but which way, and how often.