4 models have responded to the "Mini LBO Underwrite" challenge. Compare their approaches side-by-side on RIVAL. This response is part of RIVAL's open dataset of 5,600+ AI model responses.
Grok 4's response to the 'Mini LBO Underwrite' challenge.
You are underwriting a 5-year LBO for a private equity investment committee. Company (fictional): HarborTech Services (HTS) – mission-critical HVAC maintenance + monitoring for data centers (mostly recurring service contracts). Use only the information below. Do NOT browse the web. This is a fictional exercise. ENTRY (close at end of FY2025) - FY2025 revenue: $900m - FY2025 EBITDA: $120m (13.3% margin) - Purchase price: 12.0x EBITDA - Transaction fees: 2.0% of enterprise value (paid at close, funded by equity) SOURCES & USES (simplified) - Total leverage at close: 5.5x EBITDA - Term Loan: 4.0x EBITDA, 9.0% cash interest, 1.0% annual amortization - Mezzanine: 1.5x EBITDA, 12.0% cash interest + 2.0% PIK (PIK accrues to principal) - Equity funds the remainder - Assume starting cash is $0. - Assume all free cash flow after required payments is used for optional Term Loan paydown (no dividends). OPERATING ASSUMPTIONS (FY2026–FY2030) Base case: - Revenue growth: 8%, 7%, 6%, 5%, 5% - EBITDA margin: 14.0%, 15.0%, 16.0%, 16.5%, 17.0% - Capex: 3.0% of revenue - Change in NWC: 0.5% of incremental revenue (cash outflow) - Cash tax rate: 25% applied to max(0, EBITDA - cash interest) (simplified) EXIT (end of FY2030) - Exit multiple: 10.5x FY2030 EBITDA - Exit fees: 1.0% of enterprise value - Mezzanine (including PIK) is repaid at exit. TASK 1) Build a simplified year-by-year table (FY2026–FY2030) with: revenue, EBITDA, cash interest (by tranche), cash taxes, capex, ΔNWC, free cash flow after debt service, and ending debt balances (Term Loan + Mezz). 2) Compute equity IRR and MOIC. 3) Provide a sensitivity table of equity IRR vs exit multiple (9.5x / 10.5x / 11.5x) and exit-year EBITDA margin (16% / 17% / 18%). 4) List 5 underwriting risks and 5 concrete downside protection levers. Keep it concise, but show the math clearly.
Below is a concise analysis based solely on the provided information. All calculations are shown clearly with step-by-step math. Figures are in $ millions and rounded to 1 decimal place for readability (internal calcs use more precision). The model assumes:
| Metric | FY2026 | FY2027 | FY2028 | FY2029 | FY2030 |
|---|---|---|---|---|---|
| Revenue | 972.0 | 1,040.0 | 1,102.5 | 1,157.6 | 1,215.5 |
| (Calc) | 900*1.08 | 972*1.07 | 1,040.0*1.06 | 1,102.5*1.05 | 1,157.6*1.05 |
| EBITDA | 136.1 | 156.0 | 176.4 | 191.0 | 206.6 |
| (Calc) | 972*0.14 | 1,040.0*0.15 | 1,102.5*0.16 | 1,157.6*0.165 | 1,215.5*0.17 |
| TL Cash Interest | 43.2 | 41.0 | 38.3 | 35.1 | 31.4 |
| (Calc; Beg TL) | 0.09*480.0 | 0.09*455.5 | 0.09*425.9 | 0.09*390.3 | 0.09*348.4 |
| Mezz Cash Interest | 21.6 | 22.0 | 22.5 | 23.0 | 23.5 |
| (Calc; Beg Mezz) | 0.12*180.0 | 0.12*183.6 | 0.12*187.3 | 0.12*191.0 | 0.12*194.9 |
| Cash Taxes | 17.8 | 23.3 | 28.9 | 33.2 | 37.9 |
| (Taxable Inc) | max(0,136.1-64.8)=71.3 | max(0,156.0-63.1)=92.9 | max(0,176.4-60.8)=115.6 | max(0,191.0-58.1)=132.9 | max(0,206.6-54.9)=151.7 |
| (Calc) | 0.25*71.3 | 0.25*92.9 | 0.25*115.6 | 0.25*132.9 | 0.25*151.7 |
| Capex | 29.2 | 31.2 | 33.1 | 34.7 | 36.5 |
| (Calc) | 0.03*972.0 | 0.03*1,040.0 | 0.03*1,102.5 | 0.03*1,157.6 | 0.03*1,215.5 |
| ΔNWC (outflow) | 0.4 | 0.3 | 0.3 | 0.3 | 0.3 |
| (Inc Rev) | 72.0 | 68.0 | 62.5 | 55.1 | 57.9 |
| (Calc) | 0.005*72.0 | 0.005*68.0 | 0.005*62.5 | 0.005*55.1 | 0.005*57.9 |
| FCF Before Principal Payments | 23.9 | 38.1 | 53.3 | 65.7 | 77.5 |
| (Calc) | 136.1-64.8-17.8-29.2-0.4 | 156.0-63.1-23.3-31.2-0.3 | 176.4-60.8-28.9-33.1-0.3 | 191.0-58.1-33.2-34.7-0.3 | 206.6-54.9-37.9-36.5-0.3 |
| Free Cash Flow After Debt Service | 19.1 | 33.3 | 48.5 | 60.9 | 72.7 |
| (Calc) | 23.9-4.8 | 38.1-4.8 | 53.3-4.8 | 65.7-4.8 | 77.5-4.8 |
| Ending TL Balance | 455.5 | 425.9 | 390.3 | 348.4 | 300.5 |
| (Beg - Total Paydown) | 480.0-(4.8+19.1) | 455.5-(4.8+33.3) | 425.9-(4.8+48.5) | 390.3-(4.8+60.9) | 348.4-(4.8+72.7) |
| Ending Mezz Balance | 183.6 | 187.3 | 191.0 | 194.9 | 198.8 |
| (Beg + PIK) | 180.0+ (0.02*180.0) | 183.6+ (0.02*183.6) | 187.3+ (0.02*187.3) | 191.0+ (0.02*191.0) | 194.9+ (0.02*194.9) |
Varies exit multiple and FY2030 EBITDA margin (all other assumptions fixed; FY2030 revenue fixed at $1,215.5; recomputes EBITDA, EV, fees, and equity proceeds accordingly).
| Exit Multiple \ FY2030 Margin | 16% (EBITDA $194.5) | 17% (EBITDA $206.6) | 18% (EBITDA $218.8) |
|---|---|---|---|
| 9.5x | 10.8% | 12.2% | 13.6% |
| (Exit EV / Equity) | $1,847.8 / $1,326.8 | $1,963.7 / $1,442.7 | $2,079.6 / $1,558.6 |
| 10.5x | 13.7% | 15.3% | 16.8% |
| (Exit EV / Equity) | $2,042.3 / $1,521.3 | $2,169.3 / $1,648.3 | $2,296.3 / $1,775.3 |
| 11.5x | 16.5% | 18.1% | 19.8% |
| (Exit EV / Equity) | $2,236.8 / $1,715.8 | $2,374.9 / $1,853.9 | $2,512.9 / $1,991.9 |
(Equity = EV - net debt $499.3 - fees 1% of EV; IRR via same 5-year formula as above.)
5 Underwriting Risks:
5 Concrete Downside Protection Levers:
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