Return is earned by accepting uncertainty
Investors expect compensation for committing capital and bearing risk. Higher potential return usually comes with a wider range of possible outcomes—not a guaranteed reward.
Name the risk
Risk is more useful when made specific.
- Business risk: operations or competition weaken
- Financial risk: debt or cash needs become difficult to manage
- Valuation risk: a good company is purchased at too high a price
- Portfolio risk: several holdings depend on the same outcome
Diversification is about drivers
Owning many tickers is not necessarily diversified. Holdings may still depend on the same interest rate, commodity, customer or economic scenario. Diversify the forces that drive results.
Position size expresses conviction
The size of a holding should reflect both confidence and downside. A portfolio survives by ensuring that no single mistake can overwhelm the whole strategy.