Finance Interview Valuation Fundamentals
This conversation was generated using Cook'd AI's career assistant and reviewed by Fallon Han from our editorial team for accuracy.
I'm prepping for a finance interview and keep freezing when they ask about enterprise value. Can you walk me through how to explain EV, not just define it? I want a way to sound clear in the interview.
Absolutely. A strong interview answer should do three things: define EV, explain why it matters, and show how it is used. You can say: enterprise value is the total value of the operating business to all capital providers, not just equity holders. It is usually equity value plus debt, preferred stock, and minority interest, minus cash and cash equivalents. The key idea is that EV reflects the full cost to buy the business and take control of its operations.
A simple example helps. If a company has 100 of equity value, 20 of debt, and 10 of cash, EV is 110. Why not 120? Because the buyer would inherit the cash, so cash reduces the effective purchase price. In interviews, I would also add that EV is useful because it lets you compare companies with different capital structures on a more like-for-like basis.
That makes sense. If they follow up and ask why we use EV over market cap for trading comps, how should I answer without rambling?
You want a short contrast. Market cap only tells you what equity is worth. EV tells you what the operating business is worth to both debt and equity holders. For trading comps, EV is better for metrics like EV to EBITDA or EV to revenue because those metrics relate to the whole business, not just the residual value for shareholders.
A clean answer is: we use EV because it normalizes for leverage and cash balances, so the multiples are more comparable across companies. For example, two firms can have the same EBITDA, but if one has a lot of debt and the other has net cash, market cap alone would hide that difference. EV captures it.
Got it. Another topic I'm shaky on is WACC. How do I explain why debt is cheaper than equity, but still not say something too simplistic?
A good answer is to tie it to risk and tax treatment. Debt is usually cheaper than equity because debt holders have priority in liquidation and have more predictable cash flows, so their required return is lower. Also, interest is tax deductible in many cases, which lowers the after-tax cost of debt.
But do not make it sound like debt is always better. The trade-off is that too much debt raises financial risk and can increase the cost of both debt and equity. So in WACC, we use the after-tax cost of debt because that reflects the real economic cost to the firm, and we weight debt and equity by market value to estimate the overall cost of capital for the business.
If they ask me to compute WACC quickly, I worry I'll mess up the order. What's the best way to talk through it step by step?
Use a simple sequence: identify the inputs, calculate each component, then weight and add them.
First, get the cost of equity, often from CAPM. Second, get the after-tax cost of debt. Third, determine the market value weights of equity and debt. Then compute WACC as equity weight times cost of equity plus debt weight times after-tax cost of debt.
If you want to sound polished, mention one caveat: if there is preferred stock or other capital, include those too. Also note that for valuation, using market values matters more than book values because market values reflect current investor expectations.
One last thing: can you give me a quick way to compare DCF and comps if the interviewer asks which is more reliable?
Yes. The best answer is that neither is universally more reliable because they answer different questions.
DCF is more grounded in a company's own cash flow outlook and is useful when you have credible forecasts and want intrinsic value. The downside is that it is highly sensitive to terminal value, growth, and discount rate assumptions. Trading comps are faster and reflect current market pricing, but they can be noisy because they depend on how the market is valuing similar companies right now.
A strong interview line is: DCF is better for fundamental value, comps are better for market context, and in practice I use both to triangulate a valuation range.