Tracking error quantifies the deviation between a portfolio's performance and its benchmark, often calculated as a standard deviation percentage. Tracking error is ...

People who identify with the “Quantified Self movement” are, as expressed in the movement’s motto, seeking “self-knowledge through self-tracking.” They want to know how to sleep better, stay fit, or ...

Curious about just what 'tracking wonder' means? How to practice it? Why you'd want to? Portland Helmich, of Kripalu Perspectives, interviewed me recently on just these very questions and more. She's ...