How to Actually Understand CAPM (Step-by-Step)

Are you consistently losing points on CAPM because of using a short-term risk-free rate for a long-term project? If so, you're making the exact same error as 80% of your class.

1. The Core Mechanism

The fundamental rule of CAPM is straightforward. Your goal is to isolate your knowns, set up your framework, and apply the rule systematically.

2. The Real-World Application

Theory is useless without execution. Here is what this looks like:

• If you are valuing a 10-year project, you must use the 10-year Treasury yield as your risk-free rate, not the 3-month Treasury bill.

3. The Fatal Flaw to Avoid

The easiest way to lose points is using a short-term risk-free rate for a long-term project. Mark this in your notes right now. When you review your test, specifically check your work for this error.

---

Related Finance Study Guides

• How to Actually Understand Time Value of Money (Step-by-Step)
• The Biggest Mistake Students Make With NPV
• The Biggest Mistake Students Make With Diversification