Lessons/Investment Banking
Technical core

LBO basics

How leverage manufactures a return.

9 min read · 2 question check
What you will be able to do
  • Sponsor equity is the residual after debt capacity is used.
  • Returns come from debt paydown, EBITDA growth and multiple change.
  • MOIC of 2.0x over five years is roughly a 15% IRR.

Sources and uses

Uses: purchase equity, refinance existing debt, pay fees. Sources: new debt, sponsor equity, rolled management equity.

The sponsor equity check is the plug — whatever debt will not cover.

The three return drivers

Debt paydown: cash flow retires debt, so equity grows even at a flat enterprise value.

EBITDA growth: revenue growth and margin expansion.

Multiple expansion: exiting at a higher multiple than entry. The least reliable, and never the base case.

Paper LBO arithmetic

Entry EV = entry EBITDA × entry multiple. Equity = EV − debt. Project EBITDA and debt paydown to the exit year.

Exit equity = exit EBITDA × exit multiple − remaining debt. MOIC = exit equity ÷ entry equity, and IRR follows from MOIC and the holding period.

Interview application

Apply the lesson to explain how leverage manufactures a return. Start with the answer, show the bridge, and sanity-check the direction before stopping.

How to answer it
  1. 1Lead with the definition or conclusion for lbo basics.
  2. 2Show the mechanics in a fixed sequence and state every assumption.
  3. 3Finish with the practical implication, risk, or reason the result matters.
Check yourself

Entry EBITDA $100M at 8.0x with 5.0x of debt. What is sponsor equity?

Which return driver is considered the lowest quality to underwrite?

Key takeaways
  • Sponsor equity is the residual after debt capacity is used.
  • Returns come from debt paydown, EBITDA growth and multiple change.
  • MOIC of 2.0x over five years is roughly a 15% IRR.