Ex-ante return refers to the anticipated or expected return of an investment, based on forecasts rather than historical performance. This concept is critical in portfolio management and investment decision-making:
Forecasting Returns:
Ex-ante return estimates are derived from market conditions, expected economic performance, and specific security characteristics.
Analysts use models like the Capital Asset Pricing Model (CAPM) to estimate expected returns based on the asset’s risk profile and the risk-free rate.
Differentiation from Historical Returns:
Unlike ex-post (historical) returns, which reflect actual past performance, ex-ante returns guide future investment decisions.
Importance in Portfolio Management:
Portfolio managers rely on ex-ante returns to construct portfolios aligned with investment objectives, considering risk and return trade-offs.
Real vs. Nominal Returns:
Ex-ante returns can be adjusted for inflation to reflect real expected returns, providing a more accurate picture of purchasing power gains.
References to Study Documents:
Volume 2, Chapter 15, "Introduction to the Portfolio Approach," explores the estimation of expected returns and their role in portfolio management.
Volume 1, Chapter 7, "Fixed-Income Securities: Pricing and Trading," includes calculations and applications related to expected and realized returns.
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