Concept
Security characteristic line
Concepts associés (4)
Capital allocation line
Capital allocation line (CAL) is a graph created by investors to measure the risk of risky and risk-free assets. The graph displays the return to be made by taking on a certain level of risk. Its slope is known as the "reward-to-variability ratio". The capital allocation line is a straight line that has the following equation: In this formula P is the risky portfolio, F is riskless portfolio, and C is a combination of portfolios P and F. The slope of the capital allocation line is equal to the incremental return of the portfolio to the incremental increase of risk.
Capital market line
Capital market line (CML) is the tangent line drawn from the point of the risk-free asset to the feasible region for risky assets. The tangency point M represents the market portfolio, so named since all rational investors (minimum variance criterion) should hold their risky assets in the same proportions as their weights in the market portfolio. The CML results from the combination of the market portfolio and the risk-free asset (the point L).
Security market line
Security market line (SML) is the representation of the capital asset pricing model. It displays the expected rate of return of an individual security as a function of systematic, non-diversifiable risk. The risk of an individual risky security reflects the volatility of the return from security rather than the return of the market portfolio. The risk in these individual risky securities reflects the systematic risk. The Y-intercept of the SML is equal to the risk-free interest rate.
Portefeuille de marché
Le portefeuille de marché est un portefeuille constitué d'une somme pondérée de tous les actifs dans le marché, chacun pondéré selon sa proportion dans le marché, avec l'hypothèse nécessaire que ces actifs sont divisible à l'infini. Richard Roll (1977) précise que ce n'est qu'un concept théorique, car pour créer un portefeuille de marché à des fins d'investissement il faudrait dans la pratique inclure tous les actifs possibles, y compris l'immobilier, les métaux précieux, les collections de timbres, les bijoux et tout ce qui a une valeur, car le marché théorique devrait être le marché mondial.