Private Equity (PE): The Complete Guide

Corporate Finance and Strategic Advisory · CGPH Banque d’affaires

Private equity entered 2026 sitting on $1.3 trillion of undeployed capital, and, at the same time, an estimated 32,000 unsold portfolio companies worth $3.8 trillion that funds still need to exit.¹ That tension — record dry powder on one side, a historic liquidity backlog on the other — defines the industry today more than any single deal. This guide explains what private equity actually is, how a leveraged buyout creates, or fails to create, value; where the industry’s returns really come from; what the 2026 data shows; which recent deals set the tone for the current cycle; and what all of this means for a company weighing a PE investor as a shareholder, or for CGPH’s clients on the other side of the table.

What is private equity?

Private equity is capital that funds — organized as limited partnerships, with professional general partners and institutional limited partners — invest directly into private companies, typically by acquiring a controlling stake. That is the central distinction from venture capital, covered in our companion guide: VC takes minority stakes in early-stage, high-growth companies and accepts a high individual failure rate in exchange for a small number of outsized winners, while PE takes control of mature, cash-generative businesses and engineers a return through a combination of leverage, operational improvement, and, eventually, a sale.

Private equity funds generally fall into a handful of strategies:

• Leveraged buyouts — acquiring control of an established company using a mix of fund equity and acquisition debt, then repaying that debt from the target’s own cash flows over the hold period.
• Growth equity — minority or majority investments in already profitable, fast-growing companies to fund expansion, typically with less leverage than a classic buyout.
• Distressed and special situations — investing in, or acquiring, underperforming or over-levered companies to restructure them.
• Secondaries — buying existing LP stakes in PE funds, or portfolios of portfolio companies, from other investors, providing liquidity to the primary market — a fast-growing segment discussed below.

Funds typically operate on a ten-year life, often extendable, charging a management fee of around 2% plus a share of profits above a hurdle rate, traditionally 20% — the industry’s well-known “2-and-20” model — and are expected to return capital to LPs primarily through company sales, IPOs, or recapitalizations within that window.

A brief history of private equity

Private equity’s basic mechanics — pooling capital to take controlling stakes and actively restructure operations — are old. Nineteenth-century railroads attracted wealthy families and banks that bought controlling interests and reorganized management, and J.P. Morgan’s 1901 acquisition of Carnegie Steel for roughly $480 million, which subsequently formed the far larger, ~$1.4 billion U.S. Steel Corporation, is a direct ancestor of the modern control-investment playbook.² The modern industry, though, took shape across several distinct phases:

• 1946 — Institutional origins. American Research and Development Corporation, founded by Georges Doriot, is the shared root of both private equity and venture capital as professionally managed asset classes — see our companion VC guide for its early history.
• Late 1970s–1980s — The LBO boom. Investment bankers including Michael Milken pioneered the use of high-yield bonds to finance large acquisitions, and firms including KKR, founded in 1976, built the modern leveraged buyout model. The era’s defining, and most notorious, transaction was the $25 billion buyout of RJR Nabisco in 1988 — chronicled in Barbarians at the Gate — which remains the reference point for LBO excess.²
• 1980 — The “consolidation” strategy. Golder Thoma & Co., founded in 1980, blended venture-style sector focus with buyout structuring; its later split seeded both GTCR and Thoma Bravo, two of the industry’s most enduring names.
• 2000s — The mega-buyout wave, cut short by the 2008 financial crisis, after which the industry spent much of the following decade rebuilding its return model around operational value creation rather than leverage alone, as the next section sets out.
• 2020–2021 — A capital-abundant boom, followed by a 2022–2023 slowdown as higher rates compressed valuations and closed the exit window.
• 2024–2026 — The buyout revival, powered by a narrow set of megadeals rather than broad-based deal-count growth — the defining feature of the market described below.

How a leveraged buyout actually works

Stripped to its mechanics, an LBO follows a consistent pattern:

1. Acquisition financing. The fund contributes equity, typically 30–50% of the purchase price, and arranges acquisition debt for the remainder, secured against the target’s own assets and cash flows, not the fund’s other holdings.
2. Deleveraging. The target’s operating cash flow services and repays that acquisition debt over the hold period, which mechanically increases the equity value of the business even before any operational improvement takes hold.
3. Value creation during the hold period. Historically, funds relied heavily on rising valuation multiples and financial leverage; today, as the next section sets out, operational improvement has become the primary, necessary lever.
4. Exit. After a hold period that has recently extended to roughly seven years, up from five to six between 2010 and 2021, the fund exits via a sale to a strategic buyer, a sale to another PE fund — “sponsor-to-sponsor” — or an IPO, returning capital and profit to LPs.³

Where returns actually come from — and why that has changed

For years, PE’s return story leaned heavily on financial engineering. McKinsey’s analysis of buyout deals entered in 2010 or later and exited by 2021 found that roughly two-thirds of total returns came from market multiple expansion and leverage, rather than from improving the underlying business.⁴ That playbook depended on cheap debt and rising valuations — both far less reliable since rates rose. An early McKinsey read on the more recent vintage tells a different story: general partners who focus on creating value through operational improvements — pricing, procurement, commercial execution, management upgrades — are showing an internal rate of return up to two to three percentage points higher on average than peers who do not, though this comes from a still-young sample of post-2020 funds and should be read as an early signal rather than a settled verdict.⁴ In practice, the shift means rigorous operational diligence before acquisition, and dedicated operating teams working alongside deal teams throughout the hold period — a materially more hands-on model than the “buy, leverage, and wait” approach of the industry’s earlier decades.

Where the market stands in 2026

Bain & Company’s 2026 Global Private Equity Report describes an industry recovering, but narrowly and unevenly:¹

• Dry powder is towering. $1.3 trillion, weighted toward aging 2022–23 fund vintages, which puts real pressure on GPs to deploy before investment periods expire.
• Deal value is up sharply; deal count is not. Global buyout deal value rose 44% year-on-year to $904 billion in 2025, the second-highest total on record, but this was driven by just 13 megadeals ($10bn+) worth $274 billion combined, while overall deal count fell 6% to 3,018 transactions. Average disclosed deal size hit a record $1.2 billion.
• Exits improved, but not enough to clear the backlog. Exit value jumped 47% to $717 billion, the second-best year ever, with strategic-buyer exits up 66% and sponsor-to-sponsor exits up 21%. Even so, the industry still holds an estimated 32,000 unsold portfolio companies worth $3.8 trillion, and distributions back to LPs as a share of net asset value remained flat at 14% — matching levels last seen during the 2008–09 financial crisis.
• Fundraising is down. Buyout fundraising fell 16% to $395 billion, with 53% of LPs reporting they are capacity-constrained by capital still tied up in existing fund commitments — a direct consequence of the exit backlog above.
• Hold periods keep extending, now averaging roughly seven years, as GPs wait for better exit conditions or continue operational improvement work before selling.

The practical takeaway for a company considering private equity as a shareholder — a seller, a co-investor, or a growth partner — is that GPs are under real pressure to deploy record capital while also proving they can exit existing holdings profitably. In practice, that means more disciplined diligence, longer partnerships, and a stronger premium on businesses with genuine, provable operational upside.

Landmark private equity deals of recent years

A handful of transactions from 2025–2026 illustrate both the scale of the current cycle and where capital is concentrating:^{5 6}

The Electronic Arts deal is worth dwelling on: at roughly $55 billion, it is the largest buyout ever recorded, larger even than 1988’s RJR Nabisco in real terms, and its ownership is far from an even split — PIF holds the large majority of the equity, with Silver Lake and Affinity Partners as minority co-investors. Its subsequent foreign-investment review under CFIUS, still open as this is written, with an outside date of September 28, 2026 that can extend to December 28, is a reminder that even purely financial buyers now face the same regulatory scrutiny that cross-border M&A transactions do (see our companion M&A guide). The Aligned Data Centers and Meta Hyperion deals, meanwhile, show private capital increasingly financing physical AI infrastructure directly — a structural shift as significant as any single buyout, and one with a clear read-through for how private debt is also being deployed at scale (see our companion Private Debt guide).

The role of a PE-focused advisor

Whether a company is preparing to bring in a private equity partner, negotiating a majority sale, or evaluating an approach from a fund, an independent advisor typically adds value in ways that mirror, but are distinct from, the M&A advisory role:

• Pre-transaction preparation — building the operational and financial diligence narrative that today’s PE buyers demand, before a process begins rather than in reaction to buyer questions.
• Process management across multiple bidders, including distinguishing genuinely competitive financial buyers from those running a “process” to benchmark valuation without real intent.
• Structuring the ongoing relationship — board composition, governance rights, minority protections, and reinvestment or rollover terms for existing shareholders and management who remain invested alongside the new sponsor.
• Exit sequencing — given the current holding-period and liquidity environment, advising existing PE-backed companies and their founders on secondary sales, continuation vehicles, or dual-track sale-versus-IPO processes rather than a single, static exit plan.

Sources

1. Bain & Company, Private Equity Outlook 2026: Gaining Traction (Global Private Equity Report 2026) — bain.com
2. Financial Poise, What Is Private Equity? A Brief History — financialpoise.com
3. Bain & Company, Global Private Equity Report 2026 (hold-period and exit data), as above.
4. McKinsey & Company, Bridging Private Equity’s Value Creation Gap — mckinsey.com
5. HarbourVest, 10 Deals that Defined Private Markets in 2025 — harbourvest.com
6. S&P Global Market Intelligence, Private Equity Megadeals Rang Up Record Transaction Value in 2025 — spglobal.com

This article is provided for general information purposes and does not constitute investment advice. Deal values and terms are as publicly reported at the time of writing; transactions still subject to regulatory review (e.g., the Electronic Arts CFIUS process) are noted as such and may change before or after closing.