Private Equity: What It Actually Is

The core idea: buy, improve, sell

Private equity is straightforward in concept. A PE firm raises a fund (say, $5 billion from pension funds, endowments, and wealthy investors). They use that money — plus significant borrowed money — to buy companies. They improve those companies over 4-7 years. Then they sell them for more than they paid. The profit goes to investors and the PE partners.

Leveraged Buyout (LBO)

The standard PE acquisition structure. The firm puts in some equity (often 30-40% of the purchase price) and borrows the rest. The acquired company's own cash flows are used to repay the debt. If it works, the equity portion grows dramatically.

A simple LBO example

You buy a company for $100M. You put in $40M of your fund's money and borrow $60M.

The company generates $15M in free cash flow per year
Over 5 years, you use that cash flow to pay down debt
You also improve the business: grow revenue, cut costs, expand margins
After 5 years, the company is worth $170M

You sell for $170M, repay the remaining ~$25M in debt, and keep $145M. Your $40M investment became $145M — a 3.6x return in 5 years.

If the deal fails — if the business shrinks or can't service the debt — the equity goes to zero or near zero. The leverage amplifies both gains and losses.

Real-world example

KKR's 1989 buyout of RJR Nabisco for $25 billion was the deal that defined leveraged buyouts. More recently, Blackstone bought Hilton Hotels in 2007 for $26 billion. After the financial crisis almost destroyed the investment, Blackstone turned it around and made roughly $14 billion in profit when they sold shares — one of the most profitable PE investments in history.

Types of private equity

Leveraged Buyout (LBO) / Buyout Funds — The classic PE model. Buy established, profitable businesses. Megafunds: KKR, Blackstone, Apollo, Carlyle, Bain Capital.

Growth Equity — Invest in companies that are already growing and profitable but not quite ready to go public. Less leverage than buyout. Think: a $50M software company that needs capital to scale.

Venture Capital — Technically a form of PE, though treated separately. Invests in very early-stage companies. Higher risk, higher upside. Covered in its own track.

Distressed / Special Situations — Buys companies in financial trouble at steep discounts and tries to turn them around.

Fun fact

Private equity owns more companies than you would expect from daily life. At various times, PE firms have owned Petco, Toys R Us, Dollar General, Burger King, Hertz, and thousands of regional businesses across healthcare, manufacturing, and technology.

The fund structure

PE firms operate in funds. Each fund has a lifespan of ~10 years:

Years 1-5: Deployment period — invest the capital by buying companies
Years 5-10: Harvesting period — improve and exit the investments

Investors who put money in a fund (called Limited Partners, or LPs) commit capital at the start and cannot withdraw it. The PE firm (the General Partner, or GP) manages the investments.

The GP earns two things:

Management fee (~2% of committed capital per year) — covers operations
Carried interest (~20% of profits above a hurdle rate) — the real prize

Scenario

The PE fund math

A PE fund raises $1B. After 10 years, it returns $2.5B to investors — a $1.5B profit. The GP earns 20% carry over an 8% hurdle. How do you think about whether this was a good deal?

What is 'leverage' in a leveraged buyout?

What is 'carried interest' (carry) in private equity?

Private equity is in the business of buying, improving, and selling companies for profit. The use of debt amplifies returns. The real money for PE professionals comes from carried interest — a share of the fund's profits.

In a typical PE fund, what is the primary difference between a 'buyout fund' and a 'growth equity fund'?