Put Your Eggs in Many Baskets

Date: 2024-01-20

Author: Wealth & Means Staff

Source: https://wealthandmeans.com/essay/put-your-eggs-in-many-baskets

From Ecclesiastes to ETFs — how Solomon's ancient instruction to 'divide your portion to seven' maps onto modern portfolio construction across seven distinct dimensions.

TL;DR

Solomon's 'divide your portion to seven, or even to eight' is the oldest known diversification principle. Applied today, it maps to seven dimensions: asset classes, individual securities, geography, sector, number of holdings, factor exposure, and time. Each layer reduces a different kind of risk. The underlying insight is epistemic humility — you cannot predict what misfortune will arise, so you spread.

Key Takeaways

• Diversification across asset classes — stocks, bonds, real estate, commodities — is the foundation because each class responds differently to economic conditions.
• ETFs democratize diversification: a single fund can provide exposure to hundreds of securities, entire geographies, or specific investment factors.
• Geographic diversification protects against country-specific risks — political instability, currency swings, regulatory shifts — that are invisible from inside a single market.
• Factor diversification spreads across value, growth, momentum, and quality — reducing dependence on any single market regime.
• Time diversification through consistent, regular investing eliminates the impossible problem of timing entry points.
• The goal is uncorrelated exposure: assets that don't all fall together, so that no single event devastates the whole.

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

This verse is the oldest known statement of portfolio theory. Not because Solomon was thinking about stocks — he wasn't — but because he understood the only honest reason to diversify: you don't know what's coming.

After accumulating wealth, diversification is the fundamental principle for protecting it. Here are seven common dimensions.

1. Asset Classes

The most basic layer. Spread investments across stocks, bonds, real estate, and commodities. Each asset class has different risk-return characteristics — and crucially, different correlation to economic cycles. When equities fall sharply, investment-grade bonds often hold or rise. When inflation surges, real assets and commodities tend to outperform. Mixing uncorrelated asset classes reduces overall portfolio volatility without necessarily sacrificing long-term return.

2. Individual Securities

Within each asset class, avoid concentration in single names. A portfolio holding thirty stocks in different industries behaves very differently from a portfolio of three. Exchange Traded Funds make this practical: a single ETF can hold hundreds of individual securities across a theme, sector, or index, instantly providing the breadth that once required significant capital and expertise.

3. Geographic Diversification

Investing across countries and regions is one of the most underused tools. Political instability, currency risk, economic cycles, and regulatory environments vary enormously across geographies. An investor concentrated entirely in US equities has zero protection against scenarios where the US underperforms — which, historically, happens in multi-year stretches. International and emerging market ETFs make geographic diversification accessible without specialized knowledge.

4. Industry or Sector Diversification

Within equities, technology, healthcare, energy, financials, and consumer staples move differently with economic cycles. Technology outperforms in growth regimes; consumer staples hold up in recessions; energy leads during commodity supercycles. Spreading across sectors means no single industry rotation inflicts disproportionate damage.

5. Number of Holdings

Research suggests that much of the idiosyncratic risk in a stock portfolio can be eliminated with approximately 20-30 uncorrelated holdings. The first few additions to a concentrated portfolio provide the largest diversification benefit; beyond 30-40 holdings, incremental additions contribute diminishing returns in risk reduction. The practical target: enough positions that no single holding's failure is catastrophic.

6. Factor Diversification

The more sophisticated layer. Investment factors — value, growth, momentum, quality, low volatility — each perform well in different market regimes and tend to be cyclically uncorrelated. A portfolio built on a single factor (say, pure growth stocks) will have extended periods of underperformance when that factor falls out of favor. Allocating across factors smooths performance over full market cycles.

7. Time Diversification

Dollar-cost averaging — investing a fixed amount at regular intervals regardless of price — is the simplest and most underutilized form of diversification. It removes the impossible problem of timing market entry and spreads your cost basis across different market conditions. Over long periods, consistent investing at regular intervals significantly reduces the probability of catastrophic entry-point timing.

Solomon's instruction was ultimately about humility. The reason you spread across seven or eight is not because seven is a magic number. It's because you cannot see the future. The farmer who plants in seven fields knows that locusts, drought, or flood may destroy any one of them — and he cannot know which. Modern portfolio construction formalizes this intuition with mathematics. But the underlying insight is the same: bet on your judgment, but never so hard that a single mistake ends the game.

Put your eggs in many baskets. Tend each carefully. And keep planting.