Secondary Buyout Market Trends: The Return Logic Behind PE-to-PE Deal Flows

A wave of secondary buyouts (SBOs) is reshaping the Asia-Pacific private equity landscape, with Hong Kong and Singapore emerging as the primary clearing houses for these complex transactions. According to Bain & Company’s Asia-Pacific Private Equity Report 2025, SBOs accounted for approximately 42% of all buyout exits in the region by value in 2024, up from 28% in 2020. This structural shift is not a function of market distress but a calculated strategic response to a liquidity bottleneck: PE firms are sitting on a record US$2.1 trillion in dry powder globally (Preqin, Q1 2025), while traditional IPO exits via the Hong Kong Stock Exchange (HKEX) have slowed, with only 70 new listings in 2024 raising a combined HKD 87.5 billion—a 15-year low in aggregate proceeds. The return logic behind PE-to-PE deal flows is now driven by three hard factors: fund life-cycle pressure, valuation gap arbitrage, and the search for operational alpha in a higher-for-longer interest rate environment. For sponsors, the SBO route offers a controlled exit timeline, a willing buyer who understands the asset class, and the ability to avoid the public market’s valuation discount. This article dissects the mechanics, regulatory guardrails, and execution playbook for secondary buyouts, drawing on HKEX Listing Rules, SFC codes, and recent landmark transactions.

The Structural Drivers of the Secondary Buyout Wave

Fund Life-Cycle Pressure and the Exit Imperative

The primary catalyst for the surge in SBOs is the maturity of vintage 2017-2019 funds, which are now entering their liquidation windows. A typical closed-end PE fund has a life of 10 years, with two 1-year extensions. By end-2025, over 350 Asia-focused funds raised between 2017 and 2019 will have reached their mandatory divestment deadlines (Preqin, Fund Performance Monitor, Q4 2024). For general partners (GPs) who have not exited portfolio companies through IPOs or trade sales, the secondary market—including sales to other PE firms—becomes the only viable exit channel.

The cost of holding assets beyond the fund term is punitive. Under the standard limited partnership agreement (LPA) terms used in Hong Kong and Cayman Islands-domiciled funds, a GP must return capital to limited partners (LPs) within the agreed period, or face a reduction in carried interest and potential clawback provisions. Data from the Hong Kong Venture Capital and Private Equity Association (HKVCA) shows that the average holding period for PE-backed companies in Hong Kong has stretched to 6.8 years in 2024, compared to 5.2 years in 2019. This extension directly increases the pressure to transact.

Valuation Gap Arbitrage: The Buyer’s Perspective

From the buyer’s standpoint, secondary buyouts offer a structural advantage: the ability to acquire a business at a price that reflects the seller’s fund life-cycle constraints rather than the asset’s intrinsic value. In 2024, the median EBITDA multiple for SBOs in Asia-Pacific was 10.8x, compared to 12.5x for primary buyouts (Bain, Asia-Pacific PE Mid-Year Update, 2024). This 1.7x multiple discount—approximately 14%—is the valuation gap arbitrage.

The discount is not uniform. It is widest for assets in sectors with high capital expenditure requirements (e.g., manufacturing, logistics) and narrowest for technology-enabled services firms. The buyer’s underwriting discipline must account for the fact that the seller has already extracted the low-hanging operational fruit. A 2023 study by the University of Oxford’s Saïd Business School found that companies acquired in SBOs underperform those acquired in primary buyouts by an average of 200 basis points in EBITDA growth over the first three years post-acquisition. This finding underscores the need for the acquiring sponsor to have a clear, pre-funded operational improvement plan—not just financial engineering.

The Higher-for-Longer Rate Environment

The interest rate regime is the third structural driver. The US Federal Reserve’s terminal rate of 5.25-5.50% as of March 2025, combined with the Hong Kong Monetary Authority’s (HKMA) maintenance of the Base Rate at 5.75%, has made leveraged finance more expensive. The cost of senior secured term loans in Hong Kong—typically priced at SOFR + 350-450 bps—now stands at approximately 9.0-10.0% per annum. This has two effects.

First, it compresses returns for buyers who rely on high leverage multiples. A standard LBO model targeting a 20% gross IRR now requires a lower entry multiple to compensate for higher debt service costs. Second, it creates a natural filter: only sponsors with deep operational capabilities and access to flexible capital—such as continuation funds or GP-led secondary vehicles—can execute SBOs profitably. The SBO market thus becomes a domain for large-cap and mega-cap firms, leaving mid-market sponsors to seek alternative exits.

Regulatory and Structural Mechanics of PE-to-PE Transactions

Structuring the Deal: Continuation Funds vs. Direct Secondary Sales

The two dominant structures for PE-to-PE transactions in Hong Kong are the continuation fund and the direct secondary sale. Each carries distinct regulatory and tax implications.

Continuation Funds are the preferred vehicle for large-cap sponsors. In this structure, the GP creates a new fund (the continuation vehicle) to acquire a portfolio company from an existing fund, allowing LPs to either cash out or roll their interest into the new vehicle. The transaction is effectively a sale from Fund I to Fund II, both managed by the same GP. This structure requires careful navigation of the SFC’s Code of Conduct for Persons Licensed by or Registered with the Securities and Futures Commission (the SFC Code). Under paragraph 12.1 of the Code, a licensed person must avoid conflicts of interest. In a continuation fund transaction, the GP sits on both sides of the table, creating an inherent conflict. To mitigate this, the GP must appoint an independent advisory committee (IAC) comprising unconflicted LPs, and obtain a fairness opinion from a qualified independent valuer (e.g., a Big Four accounting firm or a specialist advisory boutique).

Direct Secondary Sales, by contrast, involve a clean sale from one sponsor to another, with no ongoing relationship between the seller and the asset. This structure is simpler from a regulatory standpoint but carries higher execution risk, as the buyer must conduct full due diligence without the seller’s ongoing operational involvement. The transaction is typically structured as a share sale agreement (SSA) governed by Hong Kong law, with the target company’s jurisdiction (Cayman, BVI, or Hong Kong) determining the applicable corporate law.

HKEX and SFC Oversight: The Public Market Interface

While SBOs are private transactions, they intersect with public market regulations when the target company is listed on the Main Board or GEM of the Hong Kong Stock Exchange. Under HKEX Listing Rule 14.06, a transaction that involves the acquisition or disposal of a listed company’s assets may be classified as a notifiable transaction if the consideration exceeds certain thresholds (asset ratio, profits ratio, consideration ratio, or equity capital ratio). If the SBO involves a take-private of a listed company, the acquirer must comply with the Takeovers Code and the SFC’s Code on Takeovers and Mergers and Share Buy-backs (the Takeovers Code).

Rule 26.1 of the Takeovers Code mandates that any person who acquires 30% or more of the voting rights of a Hong Kong-listed company must make a mandatory general offer (MGO) to all other shareholders. In practice, PE sponsors executing a take-private SBO will typically structure the acquisition through a scheme of arrangement under Section 673 of the Companies Ordinance (Cap. 622), which requires approval from 75% of voting shareholders and no more than 10% dissenting votes. This route avoids the 90% acceptance threshold required for a compulsory acquisition under Section 679 of the same ordinance.

The SFC’s Statement on Sponsor and Independent Financial Adviser (December 2023) further clarifies that sponsors must ensure all material information is disclosed in the scheme document, including the valuation methodology and the fairness opinion. Failure to comply can result in the SFC refusing to register the scheme document, effectively blocking the transaction.

Tax Structuring: The Hong Kong Advantage

Hong Kong’s territorial tax system provides a significant advantage for SBOs. Under the Inland Revenue Ordinance (Cap. 112), profits arising from the sale of shares are generally not subject to profits tax unless the seller is engaged in a trade of dealing in securities in Hong Kong. For a Cayman-domiciled PE fund that is tax-resident in Hong Kong, the disposal of shares in a Hong Kong or BVI-incorporated portfolio company is typically tax-free, provided the fund does not carry on a trade in Hong Kong.

However, the Inland Revenue Department (IRD) has become more aggressive in recent years. In DIPN 60 (2023), the IRD clarified that it will scrutinise the frequency and volume of share disposals to determine whether a fund is trading. For sponsors executing multiple SBOs per year, the risk of being classified as a trader increases. The standard mitigation strategy is to hold the portfolio company through a BVI or Cayman intermediate holding company, ensuring the disposal is a disposal of foreign shares, not Hong Kong shares.

Case Study: The KKR-Baring Asia Secondary Buyout of a Hong Kong Healthcare Platform

Deal Anatomy

In September 2024, KKR & Co. acquired a minority stake in a Hong Kong-based private hospital group from Baring Private Equity Asia (now part of EQT Group) in a transaction valued at HKD 4.2 billion (approximately US$540 million). The deal was structured as a direct secondary sale, with KKR purchasing Baring’s 40% stake. The target operated three hospitals in Hong Kong and two in mainland China, with an enterprise value of HKD 10.5 billion.

The transaction was notable for its use of a staple financing arrangement. KKR’s credit arm, KKR Capital Markets, provided a HKD 3.2 billion senior secured term loan facility to the target, priced at SOFR + 425 bps, with a 5-year maturity. This allowed KKR to fund the acquisition with a leverage ratio of 4.0x EBITDA, consistent with the sponsor’s underwriting discipline.

Regulatory Navigation

Because the target was a private company, no Takeovers Code or HKEX Listing Rule compliance was required. However, the transaction triggered notification requirements under the Competition Ordinance (Cap. 619) because the combined market share of the target and KKR’s existing healthcare portfolio exceeded 25% in the Hong Kong private hospital market. The Competition Commission reviewed the merger for 120 days before issuing a no-objection letter in December 2024.

Return Profile

Based on the deal’s disclosed terms, KKR’s expected gross IRR is 18-22% over a 5-year hold period, assuming 3% annual revenue growth and 200 bps of EBITDA margin expansion through operational improvements. The exit strategy is likely a trade sale to a larger healthcare operator or a secondary buyout to another PE firm, given the fragmented nature of the Hong Kong healthcare market.

The GP-Led Secondary Market: Continuation Funds and LP Dynamics

The Rise of the GP-Led Secondary

GP-led secondary transactions—where the GP sponsors a continuation fund to acquire a portfolio company from its own fund—have become the fastest-growing segment of the SBO market. According to Evercore’s Secondary Market Survey 2024, GP-led transactions accounted for 32% of global secondary volume in 2024, up from 18% in 2020. In Asia, the proportion is lower, at 22%, but growing rapidly.

The appeal for GPs is clear: they can retain a high-performing asset for an additional 3-5 years, capture additional carried interest, and offer LPs a liquidity option. For LPs, the decision to roll or cash out is a binary choice. Data from the Institutional Limited Partners Association (ILPA) shows that, on average, 65% of LPs choose to roll their interest into the continuation fund, while 35% take the cash offer. The cash offer is typically set at the same valuation as the continuation fund, meaning LPs who cash out receive fair value but forego future upside.

Conflicts and Mitigation

The conflict of interest in GP-led transactions is acute. The GP is both the seller (on behalf of Fund I) and the buyer (on behalf of the continuation fund). To address this, the SFC’s Code of Conduct (paragraph 12.2) requires that the GP disclose all material conflicts to LPs and obtain their informed consent. In practice, this means forming an LP advisory committee (LPAC) with independent members, and securing a fairness opinion from a qualified third party.

The valuation process is critical. The continuation fund’s valuation must be arm’s length, typically determined through a competitive auction process in which the GP solicits bids from third-party buyers. If no third-party bid is received, the valuation is set by an independent valuer. The SFC has indicated in its Annual Report 2024 that it will increase scrutiny of GP-led transactions in 2025-2026, particularly where the valuation appears to favour the GP over LPs.

The LP Perspective: Rolling or Cashing Out

For LPs, the decision to roll or cash out depends on the asset’s quality and the GP’s track record. A 2024 study by Cambridge Associates found that LPs who rolled their interest in GP-led continuation funds achieved a median net IRR of 14.3% over the subsequent 3 years, compared to 11.1% for LPs who cashed out and reinvested in a primary fund. However, the variance is high: the top quartile of continuation funds delivered 19.2% net IRR, while the bottom quartile delivered only 6.8%.

The key risk for LPs is the J-curve effect. Because the continuation fund is a new vehicle, it incurs management fees and establishment costs, which depress early returns. LPs who roll must accept a period of negative or low returns before the asset’s value appreciates. This dynamic is particularly relevant for Hong Kong-based family offices, which often have shorter investment horizons than institutional LPs.

Actionable Takeaways for Market Participants

1. Sponsors executing SBOs in Hong Kong must pre-negotiate the LPAC’s role and the fairness opinion provider before the transaction is announced; the SFC’s scrutiny of GP-led deals will intensify in 2025-2026, and a failure to demonstrate independence can delay or kill the deal.

2. Buyers should underwrite SBOs with a 200 bps EBITDA growth discount relative to primary buyouts, based on the Oxford study’s findings, and require a fully funded operational improvement plan in the investment memo.

3. Tax structuring remains the most cost-effective lever in an SBO; sponsors should hold Hong Kong portfolio companies through BVI or Cayman intermediate holding companies to avoid IRD’s trading classification risk under DIPN 60 (2023).

4. LPs evaluating a roll decision should demand a side-by-side comparison of the continuation fund’s projected net IRR against a comparable primary fund, net of all fees and carried interest, and factor in a 12-18 month J-curve drag.

5. For take-private SBOs of HKEX-listed companies, the scheme of arrangement route under Section 673 of the Companies Ordinance is the preferred structure, but sponsors must secure 75% shareholder approval and no more than 10% dissent, and must comply with the SFC’s Statement on Sponsor and Independent Financial Adviser (December 2023) to avoid regulatory rejection.