What an M&A case framework is really testing
Acquisition cases require several lenses to converge. Market growth cannot rescue a weak target, a strong target can be destroyed by an excessive price, and modeled synergies may disappear if customers leave or integration fails.
Good answers distinguish facts, estimates, and dependencies. They avoid counting the same benefit twice and make clear which value exists for any owner versus which value is unique to this buyer.
A step-by-step method for an M&A case framework
Start with the reason to transact, test the asset on its own, then determine whether ownership creates incremental value at an acceptable risk.
Define the investment thesis
Clarify growth, capability, cost, defensive, or financial objectives and the return threshold and time horizon.
Assess market and target
Examine industry structure, target customers, differentiation, financial quality, management, assets, and key dependencies.
Test fit and alternatives
Identify buyer-specific advantages and compare acquisition with internal build, partnership, minority investment, or no action.
Value the deal
Build a standalone value range, add probability-adjusted revenue and cost synergies, subtract integration cost, and compare with price.
Plan diligence and integration
Prioritize thesis-breaking questions, define Day 1 safeguards, and protect customers, talent, systems, and accountability.
Worked example: an M&A case framework
Follow the reasoning, then rebuild it for a different industry instead of memorizing the wording.
What good looks like
- A clear acquisition thesis and return standard
- Standalone and synergy value kept separate
- Alternatives and walk-away conditions considered
- Integration and diligence linked to the value thesis
Mistakes to avoid
- Calling all target revenue a synergy
- Ignoring the acquisition price
- Using market growth as a substitute for target diligence
- Leaving integration until after the recommendation
How to practice deliberately
Write a one-sentence thesis for three acquisition prompts
Build a standalone-plus-synergies value bridge
Generate five thesis-breaking diligence questions
Compare buy, build, and partner paths in 60 seconds
If voice AI isn’t part of your case prep yet, it should be.
Run a complete case out loud with a voice AI interviewer. Get detailed feedback on your communication, delivery, logic, reasoning, and final recommendation.
- A realistic back-and-forth case conversation
- Detailed feedback across every stage of the case
- Audio analysis of pace, pauses, filler words, and confidence
Frequently asked questions
What is the difference between an M&A case and a private-equity case?
A corporate M&A case often emphasizes strategic fit and buyer-specific synergies. A private-equity case usually emphasizes entry valuation, cash generation, operational upside, exit value, and investment returns.
How should I discuss synergies?
Separate revenue and cost synergies, identify the mechanism, quantify timing and probability, subtract implementation costs, and check for customer or operational disruption.
Do I need valuation formulas?
You should understand the logic of cash flow, multiples, price, and returns. The exact calculation depth depends on the prompt; explain assumptions and avoid false precision.
Sources and further reading
- Interviewing at McKinsey: McKinsey & CompanyPrimary source for McKinsey recruiting and interview guidance.
- Consulting interview process: Boston Consulting GroupPrimary source for BCG interview stages and evaluated capabilities.
- Interviewing at Bain: Bain & CompanyPrimary source for Bain case-interview expectations and sample cases.