Secondary Buyout
A secondary buyout is when one private equity firm sells a company it owns to another private equity firm — the seller cashes out, the buyer runs a fresh LBO.
Definition
A secondary buyout (SBO) is a transaction in which one private equity firm sells a portfolio company to another private equity firm — a 'sponsor-to-sponsor' deal. It is one of the three main PE exit routes alongside a strategic sale (to a corporate acquirer) and an IPO, and is itself a new leveraged buyout for the buyer. Do not confuse it with a 'secondary' in the LP-stakes sense (selling fund interests) — a secondary buyout is the sale of an entire operating company between sponsors.
Why secondary buyouts happen
SBOs have grown to a large share of PE exits because they solve problems for both sides. The selling sponsor often faces fund-life pressure (a typical fund needs to return capital within ~10 years), wants to lock in a realized return for its LPs, and may believe it has captured the 'easy' value (deleveraging, the obvious operational fixes). The buying sponsor sees a clean, already-professionalized asset — audited financials, an institutional management team, established reporting — that can be diligenced faster and carries less execution risk than a founder-owned or carve-out target. The buyer also believes there's a 'next leg' of value it can create: international expansion, a bolt-on acquisition roll-up, a margin program, or simply a larger fund applying more resources.
How an SBO is mechanically a new LBO
For the buyer, an SBO is just another LBO: it raises new debt against the target, contributes fresh equity, and re-underwrites a 5-year hold to a target IRR. Because the asset is already owned by a sophisticated seller running a competitive auction, SBOs tend to transact at full prices — the buyer can't expect to buy cheap from a naive owner. That puts pressure on the buyer's thesis: with the leverage already optimized and the obvious cost cuts done, the new owner usually needs a genuine growth or M&A angle to clear its return hurdle. The debt is re-struck at current market terms, and the capital structure resets.
The criticism — and the counterargument
SBOs draw skepticism: critics argue value is just being passed between financial owners ('pass-the-parcel') without creating real operational improvement, and that they're partly driven by sponsors needing to deploy dry powder and return capital on a clock rather than by genuine opportunity. Evidence is mixed — SBOs done under fund-life pressure tend to underperform, while those with a clear, differentiated value-creation plan can do well. The honest interview framing: SBOs are a legitimate, often necessary liquidity channel, but the buyer must articulate why it can create value the previous sponsor couldn't, because it's paying a full, competitively-set price.
Worked Example — With Real Numbers
Sponsor A bought a logistics company in 2021 for $500M enterprise value (5x trailing EBITDA of $100M) using $300M debt and $200M equity. Over 4 years it grew EBITDA to $150M and paid debt down to $150M. In 2025 it sells to Sponsor B for $1.05B (7x EBITDA). Sponsor A's equity proceeds = $1.05B - $150M net debt = $900M, a 4.5x MOIC on its $200M. Sponsor B now runs a fresh LBO: it puts in ~$450M equity plus ~$600M new debt, betting it can add bolt-ons to push EBITDA to $250M and exit in 5 years.
Key Takeaways
A secondary buyout is a PE firm selling a portfolio company to another PE firm (sponsor-to-sponsor).
It's one of three exit routes — alongside strategic sale and IPO — and is a brand-new LBO for the buyer.
Don't confuse it with LP 'secondaries' (selling fund interests); an SBO sells the whole operating company.
Drivers: seller needs liquidity/fund-life exit; buyer gets a clean, professionalized asset with a next leg of value.
Often criticized as 'pass-the-parcel,' so the buyer needs a differentiated value-creation thesis to justify a full price.
How Interviewers Test This
Expect 'What are the three ways a PE firm can exit an investment?' — answer strategic sale, IPO, and secondary buyout, then be ready for the follow-up 'Why would a firm BUY a company another PE firm already owns and optimized?' Strong answer: the asset is de-risked and institutional, and the buyer has a specific value-creation lever (M&A roll-up, geographic expansion, larger fund resources) the prior owner lacked. Mention the 'pass-the-parcel' critique to show you know the debate.
Related Concepts
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Leveraged Buyout (LBO)
A Leveraged Buyout (LBO) is the acquisition of a company using a significant amo...
Dry Powder
Dry powder refers to the committed but undeployed capital that private equity (a...
Bolt-On Acquisition
A bolt-on acquisition (also called an add-on or tuck-in acquisition) is a smalle...
IRR vs. MOIC
[IRR (Internal Rate of Return)](https://www.ibflash.com/concepts/internal-rate-o...
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