Oct 08, 2026 by Offer

What is accretion dilution (With Examples): Interview Answer Guide 2027

This accretion dilution interview question is intuitive with numbers. An acquirer at 20x earnings (5% yield) buys a target at 10x (10% yield) in an all-stock deal: each dollar paid buys twice the earnings it costs, so EPS rises — accretive. Funded with 6% debt instead, compare the 10% yield to the after-tax debt cost; the spread still accretes.

What This Accretion Dilution Interview Question Tests

Accretion and dilution describe what a merger does to the acquirer's earnings per share. If pro forma EPS (combined earnings divided by the new share count) exceeds the acquirer's standalone EPS, the deal is accretive; if it falls short, it is dilutive. Boards and markets watch this closely because, rightly or not, near-term EPS impact shapes how deals are received.

How to Answer This Accretion Dilution Interview Question

Take a hypothetical all-stock deal. The acquirer earns $200 million with 100 million shares (EPS $2.00) at a $40 share price — a 20x P/E. The target earns $50 million and is bought for $500 million, a 10x P/E. The acquirer issues 12.5 million new shares ($500m ÷ $40).

Now fund it with debt instead: $500 million at 6% interest, 25% tax rate → $22.5 million after-tax cost. Combined earnings become $250m − $22.5m = $227.5 million over the original 100 million shares = $2.275 EPS — also accretive, because the target's 10% earnings yield beats the 4.5% after-tax debt cost. Same conclusion, different channel — and notice neither version asked whether $500 million was a fair price, which is the value question accretion can't answer.

Common Mistakes on the Accretion Dilution Interview Question

Equating accretion with value creation. An accretive deal can still destroy value if the buyer overpays; a dilutive deal can create value if the target's growth justifies it. EPS impact is optics plus arithmetic, not a verdict.

Ignoring the financing mix. The P/E rule only works for all-stock deals. Cash and debt funding need the earnings-yield-versus-funding-cost comparison — applying the wrong rule gives the wrong answer.

Forgetting synergies and one-offs. Real accretion/dilution analyses adjust for cost synergies, restructuring charges, and purchase accounting. Year-one GAAP EPS without adjustments can mislead badly.

This is the kind of technical question that commonly decides interview rounds — candidates report that one hesitant or rambling answer here can end the process on the spot. Practice saying your answer out loud until it sounds calm, structured, and confident.

Keep Reading

FAQ

Is an accretive deal always good?

No. Accretion is arithmetic about EPS, not a judgment about value. Paying too much for a cheap-P/E target accretes on paper while destroying shareholder value — price versus intrinsic worth is the real test.

Why do markets care about accretion/dilution?

Because near-term EPS affects valuation multiples and management credibility, and heavy dilution signals the buyer may have overpaid. It is a useful screen, just not a sufficient one.

What is pro forma EPS?

The combined company's earnings divided by the post-deal share count — the “as if the deal had happened” EPS used to judge accretion or dilution.

How do synergies affect the analysis?

Cost and revenue synergies raise combined earnings, making deals more accretive over time. Interview format may vary by role and region — check the official careers page for the current process.

Preparing for William Blair's interview? Our 2027 William Blair Online Pre-recruiting Assessments Questions & Answers has practice questions and answers — $79 one-time, instant download.