LBO Return Drivers For Interviews

Reviewed by Fallon Han· Updated 2026-06-01 06:04:25.877

This conversation was generated using Cook'd AI's career assistant and reviewed by Fallon Han from our editorial team for accuracy.

I am a final-year economics student in the UK, and I am preparing for a middle-market private equity analyst interview in London. Can we walk through a simple LBO-style acquisition case step by step? I want to understand the key assumptions and how leverage, exit multiple, and downside protection change the return profile.

Absolutely. Let us use a simple example so the mechanics are clear. Say a PE fund buys a business for 10.0x EBITDA. Current EBITDA is 10, so enterprise value is 100. The sponsor funds 60 with debt and 40 with equity, so starting leverage is 6.0x debt to EBITDA. The return comes from three main drivers: 1. EBITDA growth over the hold period 2. Debt paydown, which increases equity value 3. Exit multiple, which can help or hurt depending on market conditions If EBITDA grows to 12 and debt falls to 45, then at exit: - At a 10.0x exit multiple, EV is 120 - Equity value is 75 after repaying debt - That is a 1.9x money multiple on 40 of equity The key trade-off is that leverage boosts equity returns if the business performs, but it also makes the downside worse if EBITDA falls or the exit multiple compresses.

That helps. Could you show me how changing the leverage level affects the upside and downside? For example, what if the sponsor used 50 percent debt instead of 60 percent, or even 70 percent?

Yes. Think of leverage as magnifying equity outcomes. Using the same 100 purchase price and assuming the business exits at 12 EBITDA: Case 1: 50 percent debt - Debt at entry: 50 - Equity at entry: 50 - If debt falls to 40 by exit and EV is 120, equity value is 80 - Money multiple: 1.6x Case 2: 60 percent debt - Debt at entry: 60 - Equity at entry: 40 - If debt falls to 45 and EV is 120, equity value is 75 - Money multiple: 1.9x Case 3: 70 percent debt - Debt at entry: 70 - Equity at entry: 30 - If debt falls to 50 and EV is 120, equity value is 70 - Money multiple: 2.3x So higher leverage increases the equity multiple if things go well, because you put in less equity upfront. But the risk is that if EBITDA underperforms, debt does not shrink fast enough and the equity cushion gets thin.

Could you now stress the downside? I want to understand what happens if EBITDA stays flat or falls a bit, and the exit multiple also compresses. I think interviewers will care about how protected the sponsor is.

Definitely. Downside protection is a very common interview angle. Let us keep the 60 percent debt case: - Entry EV: 100 - Debt: 60 - Equity: 40 Now assume two downside scenarios after three years. Scenario A: Flat EBITDA, multiple compression - EBITDA stays at 10 - Exit multiple falls from 10.0x to 8.0x - Exit EV is 80 - If debt only falls to 50, equity value is 30 - That is a 0.75x return on equity, meaning capital loss Scenario B: EBITDA falls 10 percent, multiple compression - EBITDA falls to 9 - Exit multiple falls to 8.0x - Exit EV is 72 - If debt is still 50, equity value is 22 - That is only 0.55x on equity This is why leverage needs to be paired with downside protection. The sponsor wants a business with stable cash flow, modest capex, and enough free cash flow to pay debt down even if trading weakens. Strong recurring revenue and low cyclicality matter a lot.

So in an interview, if I am asked whether I would prefer a higher exit multiple or faster debt paydown, how should I answer? I want something nuanced, not just saying both are good.

Good instinct. The best answer is that they matter differently depending on the risk profile of the deal. A higher exit multiple is not something the sponsor can control directly. It depends more on market sentiment and how the asset is perceived at exit. It can be powerful upside, but it is less certain. Faster debt paydown is more controllable. It is driven by free cash flow, margins, working capital discipline, and capex. That creates real downside protection because it reduces leverage even if the exit multiple does not expand. A strong interview answer would sound like this: "I would rather underwrite the deal primarily on operational improvement and debt paydown, with only modest multiple expansion. In a middle-market LBO, I want the return to be resilient if the exit multiple stays flat. If the business can delever quickly, the equity value is protected even in a weaker market." That shows you understand that private equity wants repeatable value creation, not just multiple arbitrage.

That is useful. Could you give me a clean way to think through the full return bridge in an interview, maybe in a simple sequence I can remember? I want to explain it clearly without sounding memorised.

Use a simple three-part bridge: 1. Entry assumptions - What is the purchase multiple? - How much debt can the business support? - How much equity is needed? 2. Operating and financing performance - Does EBITDA grow? - How much cash is available for debt repayment? - Is the business resilient if trading slows? 3. Exit assumptions - What multiple do we assume at sale? - What is the debt balance at exit? - What does that mean for equity value and IRR? A concise way to speak it in an interview is: "I would underwrite the entry multiple and leverage first, then assess whether the business can generate enough free cash flow to delever, and finally test whether the return is still attractive if the exit multiple is flat or slightly lower. The more the deal relies on multiple expansion, the weaker the downside case." That is a strong, natural framework for a London PE interview.