Case Interview Frameworks

M&A Framework

9 min read

M&A cases test your ability to assess whether an acquisition creates value, not just whether the target looks good in isolation. The framework splits into financial and non-financial analysis, and the biggest pitfall is underestimating integration risk.

The 5-Step Approach

Step 1. Understand the acquirer's why: Is this about revenue synergies, cost synergies, capability acquisition, market consolidation, or defensive blocking?
Step 2. Quantify the specific goal: What does success look like in year 3? Revenue target, margin improvement, market-share gain?
Step 3. Build a tailored framework across four areas: market attractiveness, target attractiveness, synergies, and financial implications.
Step 4. Assess risks and alternatives: What could go wrong? Are there better acquisition targets or organic paths to the same goal?
Step 5. Deliver a recommendation: Should the client proceed, and if so, at what price range and with what integration priorities?

The Four Analysis Areas

Market attractiveness: Is the target's market growing? Are margins healthy? Entry barriers protect future returns? Company attractiveness: Does the target have a defensible position, quality revenue (recurring vs. one-time, concentrated vs. diversified customer base), and manageable liabilities?

Synergies. The Heart of the Case

Synergies are the primary justification for paying a premium over standalone value. Split them into two types and quantify each with specific assumptions.

Cost synergies: redundant headcount elimination, shared infrastructure, procurement scale, facility consolidation. These are usually more predictable.
Revenue synergies: cross-selling each other's products, entering new geographies via the target's distribution, bundling complementary offerings. These are less certain and typically take longer to realise.
Haircut your synergy estimates: M&A deals routinely miss synergy targets. Apply a 20–30% discount before using synergies to justify the purchase price.

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Valuation

Estimate standalone value using a revenue or EBITDA multiple benchmarked to comparable transactions in the industry. Compare the implied price to your synergy-adjusted view of value. If the purchase price exceeds synergy-adjusted value, the deal destroys value unless integration execution is exceptional.

Cultural fit is the single most underestimated risk in M&A. Research consistently shows that companies which actively manage integration culture are approximately 50% more likely to meet or exceed their synergy targets. Raise this proactively, it signals maturity.

Integration Risks

Cultural misalignment: different decision-making styles, compensation structures, or values create friction and attrition.
Technology integration: legacy systems that do not connect cleanly can consume years of engineering capacity.
Customer disruption: key accounts may exit if service quality drops during the transition period.
Regulatory hurdles: antitrust review timelines can delay value capture or force divestitures.

Never memorise a fixed M&A framework and apply it verbatim. Tailor the analysis to the specific deal rationale. A capability acquisition (buying a startup for its engineers) looks very different from a market-consolidation deal (buying a direct competitor).

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