Yale Case. By: Jacob Thomas / Jeff Stevens / A. J. Wasserstein
This Yale case study investigates a common assumption in the ETA world: that EBITDA margins will improve after acquisition. Based on a proprietary dataset of 44 SF–acquired companies, the authors challenge this belief, offering a data-driven reality check for ETA CEOs and investors.
ETA entrepreneurs often enter a company with the goal of increasing its economic value, and many rely on margin expansion as a central lever in their financial models and investor pitches. These projections are typically included in their business plan prior to acquisition. The case shows, however, that such assumptions are rarely realized in practice.
Key Insights:
1/ Margin expansion expectations vs. reality
ETA CEOs typically assume that they will improve EBITDA margins over time through operational improvements, economies of scale, and better management. Their Confidential Info Memo (CIMs) often forecast growing profitability per revenue dollar.
However, analysis of the dataset reveals that:
- Margins often decline rather than improve.
- On average, actual EBITDA margins fall by around 10% over the first four years post-acquisition.
- This is in stark contrast to the 6% increase that CEOs forecast in their CIMs, a swing of about 16%.
- Only 12 of the 44 firms actually improved margins, and even then, most gains were modest.
The authors point out that these over-optimistic forecasts may stem from cognitive biases (overconfidence) and inflated pre-acquisition performance data, which is sometimes based on peak or non-repeatable results.
2/ The illusion of the J-curve
CEOs often speak of a “J-curve” in performance, an initial dip in profitability as they invest in the business (e.g., hiring, systems, sales capabilities), followed by strong recovery and growth.
The study’s data, however, supports an “L-curve” pattern instead:
- Margins decline after acquisition and remain suppressed.
- The expected rebound in profitability often does not materialize within typical ETA holding periods (usually under 5 years).
- Structural investments may permanently change the cost base, making previous margin levels unattainable.
3/ Where does value creation actually come from?
Despite disappointing margin performance, ETA businesses still generate strong returns (35% IRRs and 4.5x average return on investment).
So, how do ETA CEOs create value if not through margin expansion?
a. Asset turnover
– Defined as revenue divided by total (non-cash) assets, this metric measures operational efficiency.
– The study finds a 35% increase in asset turnover over four years.
– CEOs are driving more revenue through the same asset base, despite lower margins.
b. Non-debt leverage
– Defined as total (non-cash) assets divided by equity + net debt, this reflects the company’s ability to use stakeholders’ capital (e.g., payables, deferred wages) to fund operations.
– Non-debt leverage improved by over 30%, enabling firms to scale without increasing equity investment.
– This “equity efficiency” helps improve returns even as margins decline.
c. Modified ROIC (EBITDA ROIC)
– By combining margin, asset turnover, and leverage into a DuPont-style formula, the study calculates a modified EBITDA-based Return on Invested Capital.
– Despite falling margins, improvements in asset turnover and leverage lead to increasing ROIC over time.
– CEOs are, in effect, trading margin for growth and efficiency, and the trade pays off.
4/ Multiple expansion at exit: the secret weapon
Another powerful but less controllable source of value is EBITDA multiple expansion at exit.
- Companies in the sample were acquired at an average of 6.0x EBITDA.
- They exited at an average of 14.0x EBITDA, more than doubling the entry multiple.
- Firms with higher EBITDA $ (even if margins were lower) commanded higher exit multiples.
- Professionalization of the firm, despite temporarily suppressing margins, makes the company more attractive to buyers like PE funds or strategic acquirers.
- Exit processes are often run by investment bankers, generating competitive tension and higher valuations.
Thus, multiple expansion can more than compensate for weaker operating margins. However, it is an external factor and cannot be relied upon as a primary strategy.
Implications for ETA CEOs and Investors:
The authors conclude with practical advice for current and aspiring ETA operators:
- Stop assuming margin expansion as the primary lever of value creation.
- Recognize that operational complexity, variable costs, and short holding periods limit margin improvement.
- Instead, focus on: improving asset turnover, leveraging non-debt capital and Growing absolute EBITDA $, even if margins shrink
- Understand the importance of exit timing and positioning, where multiple arbitrage can unlock major returns.
- Design your value creation strategy based on reality, not optimistic Excel models.
This case dismantles the myth of automatic post-acquisition EBITDA margin expansion in ETA businesses. While the dream of improving profitability is appealing, the data shows that CEOs should expect margin compression, not expansion.
However, this is not a cause for despair. The study provides a roadmap for alternative value creation strategies, focusing on efficiency, capital structure, and thoughtful exits, that have proven to deliver robust investor returns.
ETA CEOs must approach their role with realism, discipline, and a broad understanding of the financial levers available beyond margin growth. Those who do can still build highly successful and valuable businesses.
Read the full case in: https://som.yale.edu/sites/default/files/2025-06/Expanding%20EBITDA%20Margins%20in%20an%20ETA%20Business%20Don%E2%80%99t%20Expect%20It%2C%20but%20Don%E2%80%99t%20Lose%20Hope%2C%20Either.pdf
