What is a unitranche loan, and why has it become the dominant structure in middle-market private credit?

A unitranche loan combines what would traditionally be separate senior secured and subordinated debt tranches into a single credit facility with one blended interest rate, one set of documents, and one lender relationship. It has become dominant because it dramatically simplifies execution for both borrowers and lenders.\n\nTraditional vs. Unitranche:\n\n| Feature | Traditional (Split) | Unitranche |\n|---|---|---|\n| Tranches | Senior + Mezzanine | Single blended |\n| Documents | 2 credit agreements + intercreditor | 1 credit agreement |\n| Lender relationships | 2+ lender groups | 1 lead lender |\n| Closing timeline | 60-90 days | 30-45 days |\n| Rate | Senior: SOFR+400, Mezz: 12% | SOFR+575 blended |\n| Decision speed | Multiple approvals | Single approval |\n\nWorked Example:\nRidgeway Packaging (EBITDA: $22 million) needs $88 million of debt financing (4.0x leverage) for a recapitalization.\n\nTraditional split structure:\n- Senior secured: $66M at SOFR+375 (3.0x leverage)\n- Mezzanine: $22M at 12.5% fixed\n- Weighted average cost: approximately 7.8%\n- Timeline: 75 days, 2 sets of counsel, intercreditor negotiation\n\nUnitranche alternative from Foxworth Capital:\n- Single facility: $88M at SOFR+550 (all-in approximately 10.0%)\n- Timeline: 35 days, single counsel, streamlined docs\n- First-lien security on all assets\n\nRidgeway chose the unitranche despite the higher blended cost because:\n1. Speed of execution was critical (competing bidder had 45-day deadline)\n2. Single point of contact simplified ongoing covenant compliance\n3. No intercreditor agreement eliminated amendment gridlock risk\n4. Call protection was more borrower-friendly (101 after year 1 vs. 103 in traditional mezz)\n\nThe Lender Economics:\n\nFoxworth internally splits the economics through an Agreement Among Lenders (AAL):\n- First-out tranche: $55M at SOFR+325 (held by insurance company partner seeking safe yield)\n- Last-out tranche: $33M at SOFR+925 (retained by Foxworth for higher return)\n\nThe borrower sees one rate (SOFR+550), but Foxworth has created a synthetic senior/junior split among co-lenders. This is invisible to the borrower, preserving the simplicity benefit.\n\nKey Considerations:\n- Unitranche typically costs 50-150 bps more than the weighted average of a split structure — the borrower pays a convenience premium\n- Larger facilities ($200M+) may still favor syndication due to single-lender concentration limits\n- Covenant packages tend to be tighter than broadly syndicated but more negotiable than traditional bank deals\n\nFor deeper analysis of private credit structures, explore our CFA Alternative Investments course.