Why does the equity of a deeply distressed company still trade above zero even when the firm's debt clearly exceeds the value of its assets?

What the interviewer is actually testing

This lesson's questions are definition-stress-tests. Anyone can recite EV = equity + net debt; the interviewer wants to know if the formula survives contact with a weird company. They're listening for three things:

1. Limited liability, stated crisply. The reason market equity can't go negative is a one-sentence legal/economic fact: "a share is a limited-liability claim with option value, so its price floors at zero." Candidates who instead fumble toward "well, the formula could give a negative number…" reveal they think of equity value as a spreadsheet output rather than a traded price. Distinguishing book equity (can be negative, often benignly via buybacks) from market equity (cannot) in the same breath is the single fastest mastery signal on this topic.

2. The economic translation of negative EV. Saying "cash exceeds market cap plus debt" is arithmetic. Saying "the market believes management will destroy the cash before shareholders see it: the operating business has negative value" is understanding. Elite interviewers push to the third layer: "why doesn't someone just buy it and liquidate?", and want frictions: control premium, burn during the fight, contingent liabilities, taxes.

3. Whether your multiples discipline survives. Follow-ups probe the wreckage: "What's EV/EBITDA for a negative-EV company?" (meaningless: switch to EV/Revenue or asset value). "Would you use EV for a bank?" (no: debt is operating for a bank; use P/E or P/TBV). They're testing that you treat multiples as ratios with conditions of validity, not universal tools.

How a strong candidate sounds: answers arrive in definition → mechanics → meaning order, each one sentence. "Market equity value can't be negative: limited liability floors it at zero. Book equity can, usually from buybacks, and that's often a strength not distress. EV absolutely can be negative when cash exceeds market cap plus debt: it means the market assigns negative value to operations because it expects the cash to be burned." Three sentences, question dead, interviewer moves up the ladder, which is where you win the superday.

Common traps

Trap 1: "Yes, equity value can be negative if liabilities exceed assets." This confuses book equity with market equity value. Liabilities exceeding assets makes book equity negative; the market value of shares still floors at zero because of limited liability.

Say it out loud: "Market equity value can't be negative: a share is a limited-liability claim, so its price floors at zero. Book equity can go negative, through accumulated losses or big buybacks, and the buyback case is often a healthy company, not a distressed one."

Trap 2: Treating negative book equity as automatic distress. Companies that have repurchased huge amounts of stock run negative book equity while generating enormous cash flow. Reflexively saying "negative equity means insolvent" fails the question.

Say it out loud: "I'd check why book equity is negative: accumulated deficit signals losses, but treasury stock from buybacks signals a company so cash-generative it returned more than it ever raised."

Trap 3: Saying enterprise value can't be negative "because a business is always worth something." EV is a market-implied residual, not an appraisal. When cash > market cap + debt, EV is negative by arithmetic, and it's telling you something real.

Say it out loud: "EV can be negative: it happens when cash exceeds equity value plus debt. The market is saying the operating business destroys value: it expects management to burn the cash before shareholders ever receive it."

Trap 4: "Negative EV is free money: just buy it and liquidate." Ignoring the frictions makes you sound like you've never thought past the formula.

Say it out loud: "In theory it's an arbitrage, but in practice you need a control premium to get at the cash, the cash burns during the fight, and there are often contingent liabilities (litigation, leases, pensions) that aren't in the headline net-debt number."

Trap 5: Quoting EV/EBITDA for a negative-EV or negative-EBITDA company. A negative numerator or denominator produces a meaningless multiple, and a negative-over-negative produces a positive multiple that's pure nonsense.

Say it out loud: "The multiple isn't meaningful here: I'd move to EV/Revenue, or value the assets directly, or build the multiple on a normalized post-turnaround EBITDA."

Trap 6: Subtracting restricted or trapped cash as if it were freely available. The 'cash' in the bridge should be cash a buyer can actually extract. Restricted cash, minimum operating cash, and cash trapped offshore at a tax cost don't fully offset the purchase price.

Say it out loud: "I'd only net out excess, accessible cash: restricted cash and the minimum cash the business needs to operate stay in, and offshore cash comes in at its after-tax repatriated value."