📊

Understanding Weighted Average Cost of Capital

Aug 11, 2024

Notes on Weighted Average Cost of Capital (WACC)

Introduction to WACC

  • Topic of Chapter 19 in CB 1 paper
  • WACC is a crucial concept in finance, serving as a linchpin for understanding financial operations.

Definition of WACC

  • WACC refers to the average cost of capital raised through a mix of debt and equity.
  • It is essential for funding operations within a company.

Sources of Capital

  1. Equity

    • Issued through equity shares.
    • Shareholders are called equity holders.
    • Return received by equity holders is termed the cost of equity (KeE).

  2. Debt

    • Represents any long-term source of funds that a company borrows.
    • Return received by debt holders is termed the cost of debt (KeD).

Importance of WACC

  • Lower WACC is preferable; it indicates a cheaper cost of capital for the company.
  • Projects funded by capital should yield returns higher than WACC to be beneficial.

WACC Formula

  • The formula for WACC is:

    WACC = (D / (D + E)) * KeD + (E / (D + E)) * KeE

    Where:

    • D = Market value of debt
    • E = Market value of equity
    • KeD = Cost of debt
    • KeE = Cost of equity

NPV and IRR Calculations

  • WACC serves as the ideal discount rate for calculating Net Present Value (NPV) and Internal Rate of Return (IRR) of projects.

Discounted Cash Flow (DCF)

  • DCF is utilized to evaluate the present value of future cash flows.
  • It helps in making informed investment decisions based on time value of money.

Cost of Debt (KeD)

  • KeD can be affected by tax deductions as interest is a tax-deductible expense.
  • Net KeD can be calculated as:
    • Net KeD = KeD * (1 - tax rate)*

Gearing

  • Gearing refers to the proportion of debt in a company's capital structure.
  • Gearing formula:
    • Gearing = Market value of debt / Market value of equity

Risk and Return Trade-Off

  • Higher risk is associated with equity holders compared to debt holders.
  • KeE (cost of equity) is higher due to the additional business and financial risks.

Capital Structure Theories

  1. Traditional Theory

    • As debt increases, WACC initially decreases but eventually increases as financial risk rises.
    • Results in a U-shaped cost of capital curve.

  2. Miller-Modigliani (MM) Theory

    • Claims capital structure is irrelevant to a firm's overall value under certain conditions.
    • Indicates that WACC remains constant regardless of the level of gearing.

Conclusion

  • WACC is critical for maximizing shareholder wealth.
  • Understanding WACC and its implications helps in making better investment decisions.

Summary of Key Points

  • WACC is the average cost of raising capital through debt and equity.
  • Essential for computing NPV and IRR.
  • Gearing influences the cost of capital and risk perception among investors.
  • Two main theories explain how capital structure impacts WACC.

These notes provide a comprehensive overview of the weighted average cost of capital, including its significance, calculation, and relationship with risk and investment decisions.

Full transcript