Diversification

Date: 2024-02-15

Author: Wealth & Means Staff

Source: https://wealthandmeans.com/essay/diversification-for-wealth-preservation

Seven dimensions of diversification for wealth preservation — from asset classes and individual securities to geographic and time diversification — grounded in Solomon's Ecclesiastes 11:2.

TL;DR

Solomon's instruction in Ecclesiastes 11:2 — 'divide your portion to seven, or even to eight, for you do not know what misfortune may occur' — is the oldest known articulation of portfolio diversification. Modern investing extends this across at least seven dimensions: asset classes, individual securities, geography, industry, number of holdings, factor exposure, and time.

Key Takeaways

• Diversification is not a modern invention — Solomon articulated the core principle in Ecclesiastes 11:2 thousands of years ago.
• Asset class diversification is the foundation: stocks, bonds, real estate, and commodities each carry different risk-return profiles.
• ETFs make geographic and sector diversification accessible to any investor, enabling exposure to different regions and industries with a single trade.
• Factor diversification — spreading across value, growth, momentum, and quality — reduces exposure to any single market regime.
• Time diversification through dollar-cost averaging smooths entry points and reduces the risk of mistiming major moves.
• The more uncorrelated your holdings, the more resilient your portfolio — correlation is the hidden variable most investors underestimate.

"Divide your portion to seven, or even to eight, for you do not know what misfortune may occur on the earth." — Ecclesiastes 11:2, King Solomon

This advice, given thousands of years ago, is still the clearest articulation of diversification ever written. Not because it names asset classes or correlations, but because it names the real reason you diversify: uncertainty. No one can predict with certainty what challenges or hardships may arise. So you spread.

After accumulating wealth, diversification is the fundamental principle for protecting it. Here are seven dimensions that serious investors use.

1. Asset Classes

The most basic level. Spread investments across stocks, bonds, real estate, and commodities. Each asset class carries different risk-return characteristics — and importantly, they tend to move differently from one another. When equities fall, bonds often hold or rise. When inflation spikes, commodities and real assets can outperform. The less correlated your holdings, the smoother your overall ride.

2. Individual Securities

Within each asset class, diversify across individual positions. Rather than concentrating in one stock, hold a portfolio across different companies. Exchange Traded Funds (ETFs) make this practical for ordinary investors — a single ETF can hold hundreds of securities across a sector or theme, instantly providing the diversification that once required significant capital and expertise to construct.

3. Geographic Diversification

Invest across countries and regions. Political instability, currency risk, economic cycles, and regulatory environments vary dramatically across the globe. Concentrating entirely in one country — even the US — exposes you to correlated risk that geographic diversification neutralizes. ETFs covering international markets, emerging markets, and specific regions make this accessible.

4. Industry or Sector Diversification

Even within a single asset class, sectors move differently. Technology, healthcare, energy, financials, and consumer staples each respond differently to economic cycles, interest rates, and policy changes. Holding across sectors means no single industry downturn devastates your portfolio.

5. Number of Holdings

Some investors target a specific number of positions — 20, 30, or more — to achieve meaningful diversification. The research suggests that much of the idiosyncratic risk in a stock portfolio can be eliminated with around 20-30 uncorrelated holdings. Beyond that, additional holdings provide diminishing diversification benefit.

6. Factor Diversification

This is the more sophisticated layer: spreading across investment factors — value, growth, momentum, quality, low volatility. Each factor performs well in different market regimes. Concentrating in a single factor (say, pure growth) means you're exposed to periods when that factor falls out of favor. Factor diversification smooths this over time.

7. Time Diversification

Dollar-cost averaging — investing fixed amounts at regular intervals regardless of price — is the simplest and most underused form of diversification. It removes the impossible problem of timing market entry and spreads your cost basis across different market conditions. Over long periods, it meaningfully reduces the risk of catastrophic entry-point timing.

Solomon's insight wasn't about financial instruments. It was about epistemic humility — the recognition that the future is unknowable and that spreading your exposure is the rational response to that uncertainty. The same principle that protected ancient merchants still protects modern portfolios. The tools have changed; the wisdom hasn't.