Farago, AdamHjalmarsson, Erik2019-06-102019-06-102019-061403-2465http://hdl.handle.net/2077/60415JEL: C58, G10We provide a theoretical basis for understanding the properties of compound re-turns. At long horizons, multiplicative compounding induces extreme positive skewness into individual stock returns, an effect primarily driven by single-period volatility. As a consequence, most individual stocks perform very poorly. However, holding just a few stocks (instead of a single one) greatly improves the long-run prospects of an investment strategy, indicating that missing out on the “lucky few” winner stocks is not a great concern. We show analytically how this somewhat counterintuitive result arises from an interaction between compounding, diversification, and rebalancing that has seemingly not been previously noted.82engCompound returnsDiversificationLong-run returnsSkewnessText