Diversification
Quick Definition
Spreading investments across various assets, sectors, and geographies to reduce risk without sacrificing expected returns.
What Is Diversification?
Diversification is the investment strategy of spreading money across different investments to reduce risk. Often called "not putting all your eggs in one basket," it's a fundamental principle of sound investing.
Why Diversification Works:
- Different assets perform differently at different times
- Losses in one area can be offset by gains in another
- Reduces portfolio volatility
- Protects against catastrophic losses
Levels of Diversification:
-
Across Asset Classes:
- Stocks, bonds, real estate, commodities
- Each responds differently to economic conditions
-
Within Asset Classes:
- Different sectors (tech, healthcare, finance)
- Different company sizes (large, mid, small cap)
- Growth vs. value stocks
-
Geographic Diversification:
- US, developed international, emerging markets
- Different economies, currencies, growth rates
-
Time Diversification:
- Investing over time (dollar-cost averaging)
- Reduces timing risk
Correlation:
- Correlation of +1: Assets move together perfectly
- Correlation of -1: Assets move opposite
- Correlation of 0: No relationship
- Goal: Combine assets with low or negative correlation
Limits of Diversification:
- Can't eliminate systematic (market) risk
- Over-diversification can reduce returns
- In market crashes, correlations often increase
Related Terms
Asset Allocation
The strategic distribution of an investment portfolio across different asset classes — such as stocks, bonds, and cash — to balance risk and return based on goals and time horizon.
Correlation
A statistical measure (-1 to +1) showing how two investments move relative to each other, crucial for diversification.
Systematic Risk
Market-wide risk that affects all securities and cannot be eliminated through diversification, also called market risk.
Unsystematic Risk
Company-specific or industry-specific risk that can be reduced or eliminated through diversification.
Dividend
A distribution of a company's profits to shareholders, typically paid quarterly in cash or additional shares.
Passive Income
Earnings generated with minimal ongoing effort, typically from investments like dividends, rental properties, interest, or royalties.
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