Diversification and Multi-Asset Portfolios

Diversification spreads exposure among holdings and risk drivers so that one avoidable loss does not dominate a portfolio. It is a method of managing concentration, not a guarantee of positive return or protection from market-wide decline.

Diversification explains the statistical mechanism: portfolio risk depends on each holding’s variability and how returns move together. Portfolio Diversification applies the principle through exposure inventory, look-through analysis, concentration measures, scenarios, and rebalancing.

Multi-Asset Class Investing combines distinct asset classes in one mandate or portfolio. Multiple labels alone do not establish diversification because equities, credit, real estate, commodities, and private assets can share growth, rate, currency, leverage, or liquidity risks.

Questions to Verify

• Which issuer, sector, country, currency, factor, rate, credit, and liquidity exposures drive risk?
• Are all accounts, pooled funds, derivatives, and employer-linked holdings included?
• What valuation date and denominator were used?
• Do historical correlations remain plausible under adverse scenarios?
• Which concentration limits and rebalancing rules apply?
• Would taxes, spreads, redemption terms, or market impact prevent a timely adjustment?

These pages provide general portfolio-analysis methods. They do not prescribe a diversified allocation for any reader.

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