Explain the difference between interest coverage and the fixed charge coverage ratio. Why can a company look safe on one and tight on the other?

What interviewers are really testing

Credit stats questions test whether you understand LBO risk from the LENDER's side, not just the sponsor's side: a perspective elite-boutique interviewers (especially RX-adjacent shops like PJT RSSG and Lazard) probe hard, because understanding what breaks a capital structure is the flip side of understanding what makes one attractive.

1. Precision on the ratio definitions. "What's the difference between total leverage and net leverage?" or "walk me through interest coverage vs. FCCR" are baseline questions. A strong candidate states the exact numerator and denominator without hesitation and explains WHY the distinction matters (net leverage nets a real cash cushion; FCCR captures ALL mandatory outflows, not just interest).

2. Covenant fluency: maintenance vs. incurrence. This is the single most-tested conceptual distinction in this lesson. Interviewers want you to explain not just the definitions but the practical consequence: maintenance covenants test every quarter regardless of activity and can trigger a default with no missed payment; incurrence covenants only gate specific new actions. Being able to say why cov-lite structures shifted risk to lenders is a strong signal.

3. Connecting credit stats to pricing and rating. The best candidates note, unprompted, that leverage and coverage don't just measure safety: they set the PRICE of debt (spread) via rating agency frameworks, and that this pricing feeds back into the LBO's own cost of capital and therefore its returns.

The elite differentiator is being able to READ a capital structure: given a stack of tranches with leverage multiples at each level, immediately articulate the subordination cushion, which tranche is most at risk in a downside, and how the ratios would evolve given a stated operating trajectory: essentially doing live credit analysis, not reciting formulas.

Common traps

Trap 1: Confusing total leverage with net leverage. Candidates use the terms interchangeably, but a deal quoted "at 6x" in the market is almost always net leverage: quoting the wrong figure misstates the actual debt burden by the size of the cash balance.

Say it out loud: "I want to be precise about which leverage figure: total leverage is total debt over EBITDA, net leverage subtracts cash from debt first. Market-quoted leverage multiples are almost always net."

Trap 2: Treating interest coverage as the binding constraint when FCCR is stricter. Candidates check only EBITDA/Interest and conclude a company is safe, missing that heavy mandatory amortization or maintenance capex could still create a liquidity problem.

Say it out loud: "Interest coverage looks fine, but I'd also check the fixed charge coverage ratio, since that captures mandatory amortization and capex too: a company can cover interest comfortably and still be tight on total fixed charges."

Trap 3: Saying a maintenance covenant breach is automatically a default with acceleration. In reality it's a technical default that gives the lender rights (waiver negotiation, fee, repricing, or in the worst case acceleration), conflating this with an actual payment default overstates the immediacy of the consequence.

Say it out loud: "A maintenance covenant breach is a technical default: it gives lenders the right to act, from demanding a waiver fee to accelerating the loan, but it doesn't automatically mean the company stops paying. In practice sponsors usually negotiate a waiver or amendment rather than let it accelerate."

Trap 4: Assuming cov-lite means 'no covenants at all.' Cov-lite TLBs still have incurrence covenants; they just lack the maintenance test. Saying a cov-lite loan has zero covenants is imprecise and reveals a shallow understanding of the term.

Say it out loud: "Cov-lite doesn't mean no covenants: it means no maintenance covenant tested every quarter. Incurrence covenants still gate specific actions like new debt issuance or dividends."

Trap 5: Ignoring which level of the stack a leverage figure describes. Quoting "4x leverage" without specifying first-lien, senior secured, or total leverage is ambiguous and can materially misstate risk: 4x first-lien under a 7x total structure is a very different risk profile than 4x total leverage with no subordinated debt beneath it.

Say it out loud: "I should specify the level: is this 4x first-lien leverage, or 4x total leverage? Those imply very different amounts of subordinated cushion protecting the senior lenders."

Trap 6: Assuming leverage always falls smoothly through an LBO hold. Candidates state deleveraging as a certainty rather than an assumption that depends on EBITDA actually growing and cash actually being swept: ignoring that a downside case, PIK accrual, or a slow sweep can leave leverage flat or rising.

Say it out loud: "Leverage should fall through the hold as EBITDA grows and the cash sweep pays down debt, but that's not guaranteed: if EBITDA underperforms or subordinated debt is PIKing, leverage can stay flat or even increase, which is exactly the scenario lenders stress-test for."