Tail Risk

Tail risk is the possibility of an extreme, unexpected market event that falls far outside normal trading patterns—think a sudden crash or spike that catches most investors off guard. You'll hear about it because these rare events can wipe out gains or create sudden losses that standard risk models don't predict well. It matters because many investors focus on typical day-to-day price swings and ignore the tail—the outer edges of what's possible. For example, a tech stock might trade calmly for months, but a surprise earnings miss could trigger a 20% drop in a single day. Smart investors keep tail risk in mind by diversifying their portfolio and not betting everything on "normal" market behavior.