Not All Investments
2. ) E.g. Small Stocks, S&P 500 and Corporate Bonds have Different Return and Risk
Higher Returns are Given
To Compensate for Higher Risks
But Not All Risks Have To Be Compensated
Need to Know Which Risk to Compensate
Quantifying Relationship Between Risks and Returns
2. ) How Returns Change with Risks
Higher Return Order:
Higher Volatility in Returns:
Measure to Calculate Returns
2. Historical Annual Average Return
Probabilistic Returns
Expected Probability for Different Returns
Historical Annual Average Returns
Estimation Error
Variation
2. ) Spread-out of Returns
Standard Deviation
Volatility of Returns
Variation Based on Historical Returns
For Small Stocks, S&P 500, Corporate Bonds and Treasury Bills:
Straight Line in Risk- Return Space
Individual Stocks
Common and Independent Risks
2. ) Theft
Independent Risks
2. ) Reduces with Increase in Diversification
Common Risks
2. ) Cannot Be Diversified
Independent Risks
Firm- Specific Risks; Diversifiable Risk; Idiosyncratic Risks
Common Risks
Market Risks; Undiversifiable Risks; Systematic Risk
Arbitrage Rule
2. ) Risk- Premium for Market Risk Only
Law of One Price
Volatility Cannot Be A Measure of Risk for Portfolio
2. ) Calculated Using Beta
Beta
% Change in Return Due to % Change in Market Return