Private equity underwriting has become materially tighter. A business acquired at 11x–13x EBITDA with 5.5x–6.5x leverage and underwritten to a 20%+ IRR historically had room for moderate operational underperformance if exit multiples expanded or financing remained accommodative. Many funds are dealing with flat or lower exit multiples, elevated borrowing costs, and portfolio company performance below underwriting expectations, extending hold periods well beyond the traditional five-year window. As a result, the interrelationship between MOIC, IRR, EV/EBITDA, leverage ratios, interest coverage, and EBITDA margins has become significantly more sensitive and complex.
A 2x MOIC achieved over five years produces roughly a 15% IRR. Extend the hold period to eight years, without materially increasing equity value, and the IRR compresses toward 9%. If an investment is acquired at 12x EBITDA and exits at 10x, EBITDA growth and debt reduction must compensate for the multiple contraction. This increases dependence on margin expansion and free cash flow conversion as deleveraging becomes a larger driver of equity value creation. In that environment, highly leveraged companies with constrained interest coverage have limited flexibility to absorb operational inefficiencies without impairing deleveraging and reducing equity returns.
The metric are more dependent on each other than in prior cycles. Higher EV/EBITDA entry multiples require strong EBITDA growth and margin expansion to support target returns. Elevated leverage requires strong interest coverage and durable free cash flow conversion. Weak EBITDA margins reduce debt service flexibility and slow deleveraging, directly impairing MOIC and IRR outcomes. Revenue growth that is not supported by pricing power, operational discipline or strong cash flow quality no longer supports premium valuations because buyers are increasingly underwriting to durability of earnings rather than topline expansion alone.
Producing acceptable outcomes now requires coordination across operating performance, capital structure management, cash flow conversion, and institutional-quality diligence readiness. As underwriting standards tighten and operational execution becomes increasingly central to value creation, private equity firms should rely more heavily on specialized operating, financial, and strategic advisory firms to improve performance, strengthen cash flow durability, accelerate deleveraging, and maximize exit valuations.