What Is Private Equity? How PE Funds Work and Who Can Invest

Private equity means investing in companies that don't trade on public stock exchanges. A PE fund raises capital from investors, uses that money to acquire or invest in private businesses, improves them operationally or financially, and then sells them for a profit — typically over a 7-12 year horizon. Understanding what is private equity matters because the asset class manages over $8 trillion globally and has historically outperformed public markets, though with significant trade-offs in liquidity and transparency.

How Private Equity Funds Work

A PE fund operates through a limited partnership structure. The fund manager (called the General Partner or GP) makes investment decisions and manages the portfolio companies. The investors (Limited Partners or LPs) contribute capital and receive returns, but have no say in day-to-day operations.

Here's the lifecycle of a typical PE fund:

Fundraising (Year 0-1). The GP markets the fund to institutional investors and high-net-worth individuals. A new fund might target $500 million to $5 billion. Investors commit capital but don't transfer it yet — they sign a legally binding commitment to fund "capital calls" when the GP identifies deals.

Investment period (Years 1-5). The GP deploys capital by acquiring companies. A $1 billion fund might buy 8-12 companies at $75-150 million each. Capital calls go out as deals close — you might commit $500,000 and receive calls of $50,000-$100,000 over three years.

Value creation (Years 3-8). The GP works to increase the value of each portfolio company through operational improvements, management changes, add-on acquisitions, or financial restructuring. This is where PE firms earn their reputation — and their returns.

Exit (Years 5-12). The GP sells portfolio companies through IPOs, sales to strategic buyers, or sales to other PE firms. Sale proceeds are distributed to LPs (after the GP takes its share). The fund eventually winds down.

What Is Private Equity's Investment Strategy?

PE firms don't just buy companies and wait. They use specific strategies to generate returns:

Leveraged Buyouts (LBOs)

The dominant PE strategy. The fund uses a combination of equity (LP capital) and debt (borrowed money) to acquire companies. A typical LBO might use 40% equity and 60% debt. The debt is loaded onto the acquired company's balance sheet, not the fund's.

Example: a PE fund buys a manufacturing company for $200 million using $80 million of fund capital and $120 million in bank loans. Over five years, the company's cash flow pays down $60 million in debt. The fund then sells the company for $280 million. After repaying the remaining $60 million in debt, the equity value is $220 million — a 2.75x return on the $80 million invested.

Leverage amplifies returns but also amplifies risk. If the company's revenue drops and it can't service the debt, the entire equity investment can be wiped out.

Growth Equity

Rather than buying entire companies, growth equity funds take minority stakes in fast-growing businesses that need capital to scale. Less leverage, lower risk, potentially lower returns than LBOs. The target companies are typically profitable or near-profitable, unlike venture capital targets.

Distressed / Turnaround

These funds buy troubled companies (or their debt) at steep discounts, restructure operations, and sell at a recovery valuation. High risk, high potential reward, and requires specialized operational expertise.

Secondaries

Secondary PE funds buy existing LP interests in other PE funds. If an investor in a five-year-old PE fund wants out early, a secondary fund buys their position — often at a 10-20% discount to net asset value. This provides some liquidity to the original investor and gives the secondary buyer a discount entry point.

What Is Private Equity Performance?

PE has outperformed public markets over most long-term periods, though the magnitude is debated.

According to Cambridge Associates data through 2024, U.S. PE funds generated a median net IRR (Internal Rate of Return — the annualized return accounting for the timing of cash flows) of approximately 13-16% over 10-year horizons, compared to roughly 10-12% for the S&P 500 over the same periods.

The top-quartile versus bottom-quartile spread is enormous. Top-quartile PE funds have returned 20%+ net IRR, while bottom-quartile funds have returned low single digits or negative returns. Manager selection matters more in PE than in almost any other asset class.

A concrete example: a $100,000 commitment to a median PE fund with a 14% net IRR over 10 years grows to roughly $370,000. The same amount in the S&P 500 at 11% becomes approximately $284,000. That $86,000 difference is the PE premium — but it comes with a decade of illiquidity.

For a deeper analysis, read our guide on private equity returns explained.

The Fee Structure: 2 and 20

PE funds charge two layers of fees:

Management fee: Typically 1.5-2% annually on committed capital during the investment period, then on invested capital during the harvest period. On a $500,000 commitment, that's $7,500-$10,000 per year regardless of performance.

Carried interest (carry): The GP takes 20% of profits above a hurdle rate (usually 8%). If a fund returns $200 million in profit to LPs, the GP keeps $40 million. The hurdle rate ensures the GP earns carry only after LPs receive a minimum return.

These fees are why net returns matter more than gross returns. A fund reporting 25% gross IRR might deliver 18% net after fees. The fee drag is substantial over a decade.

Some newer platforms and fund structures have compressed fees. Moonfare provides access to top-tier PE funds with lower minimums and transparent fee reporting, though the underlying fund fees remain.

Who Can Invest in Private Equity

Traditional PE funds require:

• Accredited investor status (minimum)
• Qualified purchaser status for many funds ($5 million+ in investments)
• Minimum commitments of $250,000-$5 million+
• Willingness to lock up capital for 10+ years

This has kept PE firmly in institutional and ultra-high-net-worth territory. Pension funds, endowments, and sovereign wealth funds are the dominant LPs.

Newer access points are changing this:

Moonfare aggregates individual investors into feeder funds that invest alongside institutional LPs in top-tier PE funds. Minimums start at $50,000 — still significant, but far below the $5 million typical institutional minimum.

AngelList focuses more on venture capital but offers some PE-adjacent opportunities through its rolling fund and syndicate structures.

Publicly traded PE firms — Blackstone (BX), KKR (KKR), Apollo (APO), Carlyle (CG) — let any investor buy stock in the GP itself. You don't get PE fund returns, but you benefit from the management fees and carried interest these firms earn.

For a practical guide to getting started, see how to invest in private equity.

Risks of Private Equity

Illiquidity. Your capital is locked for 7-12 years. Capital calls are legally binding — if you can't fund a call, you face severe penalties including forfeiture of your existing interest. This is not a commitment to make lightly.

Leverage risk. LBO strategies load companies with debt. Economic downturns, rising interest rates, or operational problems can push portfolio companies into distress. The 2008-2009 period saw significant PE portfolio company defaults.

Blind pool risk. When you commit to a PE fund, you don't know which companies the GP will buy. You're betting on the manager's skill and judgment, not specific assets.

J-curve effect. PE funds typically show negative returns in early years as management fees and deal costs are incurred before portfolio companies appreciate. It may take 3-5 years before your capital account shows a positive return. This is normal but psychologically challenging.

Transparency. PE funds report quarterly, but valuations are based on GP estimates, not market prices. You don't know the true value of your investment until companies are sold.

Private Equity vs. Other Alternatives

What is private equity's role relative to other alternative assets? PE offers the highest potential returns among alternative asset classes but demands the most capital, the longest commitment, and the most sophisticated due diligence. Venture capital targets earlier-stage companies with higher variance. Real estate offers more tangible assets and income. Private credit provides fixed income with lower volatility.

Most institutional portfolios allocate 10-25% to PE. For individual investors, a 5-15% allocation through a platform like Moonfare is reasonable — if you can tolerate the illiquidity and meet the minimums.

Frequently Asked Questions

What is private equity in simple terms?

Private equity means buying ownership stakes in companies that aren't listed on stock exchanges. PE funds pool investor money, acquire businesses, improve their operations and profitability, and then sell them years later for a profit. Returns come from the difference between the purchase price and the sale price, amplified by borrowed money (leverage).

How much money do you need to invest in private equity?

Traditional PE funds require $250,000-$5 million minimum commitments plus qualified purchaser status ($5 million+ in investments). Platforms like Moonfare have lowered minimums to $50,000. Buying stock in publicly traded PE firms like Blackstone requires only the share price — roughly $120-$170 per share — though this provides indirect exposure.

What returns does private equity generate?

Median PE fund net returns have historically been 13-16% annualized over 10-year periods. Top-quartile funds exceed 20%. Bottom-quartile funds may return low single digits. These are net returns after the standard 2% management fee and 20% carried interest. Manager selection drives more return variation than in any public market asset class.

How long is money locked up in private equity?

Most PE funds have a 10-12 year life. Capital calls occur during the first 3-5 years, and distributions flow back during years 5-12 as companies are sold. You cannot withdraw money early without selling your position on the secondary market, typically at a 10-20% discount to stated value.

Is private equity riskier than stocks?

PE carries additional risks — illiquidity, leverage, blind pool commitments, and transparency limitations — that public stocks don't have. However, diversified PE fund portfolios have experienced lower loss rates than individual stock picking. The risk profile is different rather than simply "more" — you trade liquidity and transparency for higher return potential.

What is the difference between private equity and venture capital?

PE typically buys majority or controlling stakes in established, profitable companies using significant leverage. VC invests in early-stage, often unprofitable startups with equity only (no debt). PE targets 2-3x returns over 5-7 years per deal; VC targets 10-100x on winners knowing most investments fail. PE focuses on operational improvement; VC focuses on company growth.

ModernAlts is an independent research platform. Nothing in this article constitutes investment, legal, or tax advice. Alternative investments involve risk including possible loss of principal.