Investor Guide
What Is Position Size?
Understand how invested exposure determines the effect of market moves on a portfolio.
In Simple Terms
Position size can mean one holding’s share of a portfolio or the portfolio’s total exposure to risk assets such as stocks.
A Simple Example
With $100,000 available and $60,000 invested in stocks, stock exposure is 60% and cash is 40%.
Why It Matters
Position size determines how much one correct or incorrect judgment can affect the portfolio.
How to Interpret It
Sizing should reflect risk tolerance, the purpose of the money, time horizon, concentration, and liquidity. A positive view does not require full investment.
Common Misunderstanding
There is no universal position size, and short-term confidence alone is not a sound sizing method.
Risk Note
Concentration magnifies gains, losses, and company-specific risk.
Related Concepts
Sources
- Investor.gov: Asset Allocation and Diversification
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This content is for education and general information only. It is not personalized investment advice. Investing can result in loss.