The private equity buyer is using a regression-based valuation model comparing us to publicly listed peers, but our growth rate is double their benchmark. How do we run diagnostic checks on their model assumptions to prove their market-derived multiple is too low?

Question

Tyler Smith · Accepted Answer

Regression-based valuation models, while appearing scientific, are only as reliable as their underlying inputs and assumptions. When a private equity buyer utilizes public companies to construct such a model, they are often making an "apples to oranges" comparison. To effectively challenge their valuation, you must perform thorough diagnostic checks on their model.

Deconstructing the Buyer's Model

Here's how to run diagnostic checks on their model assumptions:

• Analyze Peer Selection:
• Publicly listed companies frequently differ significantly from private businesses.
• They often have distinct capital structures, growth rates, and risk profiles.
• If your company's growth rate is double their benchmark peers, it strongly indicates a flaw in the linear assumptions of their model. You can strengthen your argument by showcasing your [operational playbooks for strategic premium multiples](/qa/operational-playbooks-for-strategic-premium-multiples) which might explain this superior performance.

• Check for Statistical Flaws:
• Investigate the model for issues like multicollinearity (where independent variables are highly correlated with each other) and heteroscedasticity (where the variance of the errors is not constant).
• Point out that their regression model likely fails to capture the premium value of a highly focused, agile business, especially one that leverages modern AI-driven operations to sustain superior margins. Consider referencing how you might be [defending AI investments in QofE EBITDA](/qa/defending-ai-investments-in-qofe-ebitda) as part of your operational efficiency.

• Quantify Your Growth Impact:
• Calculate the precise impact of your superior growth rate as a distinct independent variable.
• Force them to adjust their regression coefficients to genuinely reflect your superior trailing twelve months EBITDA growth and net margin.
• Demonstrate that when your specific metrics are plugged into an appropriately weighted model, it yields a significantly higher multiple. This will help you articulate how buyers actually [value a business like yours beyond just a simple EBITDA multiple](/qa/understanding-business-valuation-multiples-market-approach).

Do not be intimidated by complex spreadsheets. By rigorously questioning their variables and proving your business operates on a superior financial trajectory, you can dismantle their low multiple and negotiate a valuation that truly reflects your growth potential. This approach can also align with efforts to present your business as [ready for a clean exit](/qa/business-exit-readiness-vs-founder-burnout).