The private markets secondaries space has entered a new chapter. What was once a niche corner of alternative investments, used primarily by limited partners (LPs) seeking early exits from fund commitments, has grown into one of the most dynamic segments of global private capital. The market has tripled in size since 2019 and grown by approximately 50% between 2024 and 2025 alone, reaching an estimated $230 billion in annual transaction volume and now representing around 5% of all global private equity assets under management. 

This piece examines the forces behind that expansion, the structural shifts redefining the market, and the operational and regulatory challenges participants will need to navigate as the asset class continues to scale.

Market Growth and Shifting Deal Dynamics

Several converging factors have driven the secondaries market to its current size. A prolonged slowdown in IPO activity and traditional exits has created a liquidity bottleneck across private markets, leaving many LPs over-allocated to alternatives and constrained in their ability to make new commitments. The secondary market has become a primary mechanism for these investors to rebalance portfolios and free up capital.

Deal structuring has grown more sophisticated in step with market volumes. Ropes & Gray has observed a continued expansion in the use of purchase price deferrals and earnouts, and more recently, the introduction of deal-specific funding caps, limits on how much capital a buyer can be called to deploy before a specified date. These mechanisms allow sellers to achieve higher reference-date pricing while enabling buyers to manage capital deployment pacing and portfolio composition. In Q1 2026 alone, institutions initiated new secondary sales processes totaling north of $20 billion, some linked to denominator effect concerns as declines in public market portfolios pushed private allocations above target levels. Whether this proves a sustained driver of supply will depend on how institutional portfolios weather current market conditions.

The Three Transaction Types

Secondary transactions fall into three main categories: 

• LP-led transactions, the original form, involve an LP selling existing fund interests, sometimes across a broad portfolio of hundreds of positions, typically through competitive auction processes with tight timelines. 
• GP-led continuation funds, the fastest-growing segment, involve a sponsor transferring select assets into a new vehicle, giving existing LPs the option to cash out or roll forward. As of 2025, GP-led and LP-led volumes are roughly evenly split at around $115 billion each. GP-led buyout fund volume grew 39% year-over-year, while private credit secondaries saw nearly 300% year-over-year growth in GP-led activity. 
• The third category, structured solutions, provides capital to a GP collateralized by existing fund assets and can take a wide variety of bespoke forms.

What Are the Operational and ESG Challenges in the Market?

One of the defining challenges in secondaries is the speed and scale of due diligence required, particularly in LP-led transactions. Buyers may need to evaluate hundreds, or in private credit secondaries, over a thousand, underlying positions with limited information and within windows of 24 to 48 hours. As Jessica Huang, Managing Director and ESG lead for private equity and secondaries at Ares Management, noted in a recent webinar:

Against this backdrop, LP expectations around ESG integration have risen sharply. LPs are now holding secondaries to a standard closer to that applied to direct investments, with requests for Article 8-classified funds, look-through exclusion lists, and UN Global Compact compliance screening becoming more common. Main exclusion categories include fossil fuels, controversial weapons, tobacco, and gambling, though definitions and revenue thresholds vary significantly across mandates. SFDR 2.0, currently in draft form, may introduce additional mandatory exclusion categories that managers are monitoring closely. In LP-led deals where buyers are inheriting a broad portfolio of assets, highly granular opt-outs can mean missing certain large transactions, a trade-off that must be clearly communicated to LPs.

The Role of Technology and AI

Technology has become central to the scaling of secondaries operations. AI tools are now applied across controversy screening, ESG data analysis, and emissions estimation, where direct disclosures are unavailable. A particular challenge in the asset class is coverage: many underlying companies are small or mid-market private businesses not captured in conventional databases.

Market participants consistently emphasize that AI outputs serve as inputs to human judgment, not as replacements for it. At Ares, screening results are reviewed by ESG specialists before being passed to deal teams for final decisions.

What the Future Holds

Transaction volumes are forecast to continue rising as both the seller and buyer universes expand. Private credit, infrastructure, and structured secondaries all represent areas of growing specialization and regional expansion, particularly in Asia, where secondary activity has been limited but is expected to grow as investment programs mature, broadening the market further. Capital supply dynamics bear watching: while dry powder remains substantial, deal volume growth has outpaced fundraising since 2023, which could create pricing or capital constraints. The entry of retail investors through evergreen vehicles adds a meaningful new source of capital but brings different liquidity expectations and regulatory considerations.

On the operational side, the sophistication of deal terms, the complexity of ESG compliance, and the volume of data processed per transaction are all increasing. Firms that can integrate technology into their diligence and monitoring workflows, while preserving the human judgment layer, will be best positioned to manage market growth. Secondaries are no longer a supplementary liquidity tool; they have become a structural feature of how private markets operate.

We are excited to announce the SESAMm MCP Server, a new integration that brings SESAMm's ESG controversy data directly into your preferred AI assistant. You can now get answers on a company's ESG risk without leaving the AI assistant: no switching platforms, no extra logins, just one workflow.

The MCP server is built on the Model Context Protocol, an open standard originally developed by Anthropic and now supported by all major AI assistants. Setup takes less than five minutes.

Ask Your Portfolio Anything

The SESAMm MCP Server gives your AI assistant direct access to SESAMm data. From there, the AI can retrieve the right information and synthesize it into a clear, contextualized answer, not just hand back raw data. Ask about a company's top controversies over the last 12 months, compare CES scores across a shortlist, or run a UNGC screen on a portfolio: the assistant handles everything and returns a contextualized, source-linked answer in seconds. Every result traces back to the underlying SESAMm cases and documents, so you can verify the output.

Standardized  Reports Made Easy

Once you have a workflow that delivers the output you need, you can save it as a Skill, whether that's a standardized ESG summary, a deal-ready risk table, or a customized controversy brief. It's a fast, easy way to customize reports and standardize workflows across your team.

For example, if your Sustainability team builds a customized ESG report, they can save it as a Skill and share it internally with the rest of their organization. From there, every colleague on your organization's SESAMm MCP, whether they sit in Sustainability, Credit, or Deal teams, runs the exact same report, in the exact same format.

Key Benefits of the SESAMm MCP Server

• Standardized, shareable reports and processes: Save any query as a Skill and share it with the team. Everyone runs the same trusted process, in the same format, every time.
• Portfolio screening at conversational speed: Rank an entire portfolio by peak CES, flag UNGC violations, and surface high-risk names, all from one query and with no manual aggregation.
• ESG answers without leaving your workflow: Query any company's controversies, CES score, or UNGC status directly from your AI assistant and get a clear, contextualized answer in seconds, with no platform login required.

Happy new year! 2018 already holds many exciting news with various projects and clients already onboard. We begin the year with 2 recently signed contracts with top-ranked hedge funds, additional features and cryptocurrencies added to L’Humeur des Marchés and published plentiful of internships and job opportunities. Moreover, following our partnership with Eagle Alpha and the event in New York last month, we will be organizing a roadshow in London to meet high-ranked hedge funds on February 7th and 8th.

Collaboration with new major clients

Recently, we have signed 2 major contracts with top-ranked hedge funds.

The first contract is with Nikko Global Wrap (one of the subsidiaries of Sumitomo Mitsui Asset Management, a major asset manager in Japan) managing JPY 1.7 trillion.

Second contract has been signed with La Française Investment Solutions, a subsidiary of La Française Group, a top 10 French asset manager with more than €64bn assets under management.

This great news proves our technology is trusted by major financial institutions and gives us more confidence to continue looking for collaboration opportunities worldwide.

Future contracts and new distributor

We are currently in negotiation talks with another major French asset manager, a bank, two insurers and a US hedge fund. We hope to keep up at the same pace for the whole year and sign new contracts in the weeks ahead.

Also, we have recently started a new partnership with Neudata, a major UK alternative data distributor. We have signed an agreement, so they could support us and promote our solutions & services.

After New York, London

Last month, SESAMm made its very 1st trip to the USA for the BIG Alternative Data Showcase week organized by our partner Eagle Alpha. It proved to be a valuable experience from which multiple business opportunities arose and we launched many product trials with significant US funds.

Next month, we are planning a roadshow in London with Eagle Alpha. We already arranged multiple meetings with hedge funds and, thanks to Eagle Alpha’s support, we are given a unique opportunity to present and show our solutions to asset managers and C-level decision makers.

New additions to L’Humeur des Marchés

Concerning our platform L’Humeur des Marchés, we are glad to announce that we will soon be providing historical data concerning the assets. This update is planned to happen during next month and will give users more flexibility and options related to their investment and strategies.

In addition, an alert module is under development and we have begun to include cryptocurrencies into the platform. Most of the top-ranked cryptocurrencies are currently covered – such as Bitcoin, Ethereum or Ripple, among others as shown below.

Developments are planned to further extend our coverage of alt-coins with the objective to include every single major capitalization into L’Humeur des Marchés.

New job opportunities

Last but not least, we will be scaling our team during 2018. Multiple internships and job offers are currently available to further support SESAMm’s growth and ambition. We are looking for candidates in the fields of IT, finance and Data science but, most of all, highly motivated individuals seeking challenges! You can find all our offers by following this link. We would be very excited to receive your applications or recommendations for profiles seeking to work with us!

Thank you for your support and best wishes to you for 2018!