Lesson Overview
Turn CAPM into an interpretation tool, not just an equation.
Level I questions are three-choice multiple choice and are built to reward fast recognition of the relevant rule, relationship, or calculation path. For this lesson, the job is to turn the topic into a repeatable exam move rather than another note to reread.
Mental Model
Assets plot around a security market line with beta driving required return and alpha as deviation.
In the Above MPS system, this sits in Portfolio Control Panel: Control the risk. Use that shape as the memory hook, then connect it to the precise facts in the question stem.
Exam Playbook
- Name the topic before calculating. Decide whether the stem is asking for a definition, direction of effect, classification, or numerical result.
- Apply the rule that changes the answer. Ignore details that do not affect the relationship being tested.
- Check the answer against the common trap. If the tempting choice matches one of the traps below, slow down before locking it in.
High-Yield Map
- Beta measures sensitivity to market risk.
- CAPM return is required return for bearing systematic risk.
- Alpha is performance beyond the model-implied return.
Common Traps
- Using total risk instead of beta.
- Confusing expected return with required return.
- Missing whether alpha is positive or negative.
Repair Drills
- Calculate CAPM return for five assets.
- Label each asset as overvalued or undervalued relative to the line.