Finance

Diversification

Definition

An investment strategy that reduces risk by spreading investments across different asset classes, industries, and geographic regions.

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Diversification is the practice of not putting all your eggs in one basket. By investing in a variety of assets that respond differently to market conditions, you reduce the risk that a single poor-performing investment will devastate your entire portfolio.

Effective diversification spans multiple dimensions: asset classes (stocks, bonds, real estate), sectors (technology, healthcare, energy), company sizes (large-cap, mid-cap, small-cap), and geographies (domestic, international, emerging markets). Index funds and ETFs offer instant diversification at low cost.

While diversification cannot eliminate all risk, it can significantly reduce unsystematic risk, which is risk specific to individual companies or sectors. The optimal level of diversification balances risk reduction with complexity and costs. Most financial advisors recommend holding at least 20-30 different investments across multiple categories.

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