Asset Allocation

Asset allocation is the decision about how to divide a portfolio among broad asset classes — stocks, bonds, cash, gold, real estate, commodities — rather than which specific securities to buy within each. It is the central subject of this entire site, because decades of research suggest that the mix of asset classes, not individual stock picking or market timing, explains the large majority of a diversified portfolio's long-run variability in returns.

The logic rests on correlation: different asset classes respond differently to the same economic conditions. Stocks tend to thrive when growth is strong; long-term bonds often shine during recessions and falling rates; gold and commodities can hold up during inflation. By holding a deliberate mix, an investor builds a portfolio that no single environment can devastate, accepting that it will rarely be the top performer in any one year in exchange for a steadier overall path.

A good asset allocation flows from three personal factors: time horizon, risk tolerance, and goals. A young investor decades from retirement can hold a stock-heavy mix and ride out deep drawdowns, while someone drawing income soon needs more ballast to manage sequence-of-returns risk. There is no single correct answer — only a mix you can actually stick with through a full market cycle.

Once set, an allocation must be maintained through rebalancing, since market movements constantly push it off target. The classic strategies catalogued on this site — from the simple 60/40 to Ray Dalio's risk-parity All Weather — are really just different, well-reasoned answers to the same asset-allocation question.