By SIMON CONSTABLE
Bank research reports frequently refer to “tail risk” for investors, but it isn’t always clear what it means and what to do about it.
Broadly speaking, a tail risk is an event with a small probability of happening, says Bob Conroy, professor of finance at the University of Virginia Darden School of Business. “In every event there are tails; there are really, really good things that can happen and really, really bad things.”
The term comes from looking at the bell curve, or so-called normal distribution of results. The tails of the bell curve extend out to plus or minus infinity with ever-decreasing probabilities. Read more here.