How Private Equity Buys Companies With Borrowed Money and Makes a Fortune
Private equity firms buy entire companies mostly with borrowed money, fix them up, and sell them a few years later. With roughly 1.3 trillion dollars of uninvested cash waiting, it is one of the most powerful forces in corporate finance, and one of the least understood.
Buying a Company on a Mortgage
A leveraged buyout is, at its heart, the same idea as buying a house with a mortgage, scaled up to entire corporations. A private equity firm puts down a slice of its own money, often around a third of the price, and borrows the rest, using the company it is buying as the collateral for the loan. The company then carries that debt on its own balance sheet and pays it down out of its own cash flow. The firm improves the business over a few years and sells it, ideally for far more than it paid. It is one of the dominant forces in modern finance, and right now firms are sitting on roughly 1.3 trillion dollars of committed but uninvested cash, known as dry powder, waiting to be deployed.
Why Borrowing Amplifies the Return
The leverage is the whole point, because debt magnifies the return on the firm's small slice of equity. Imagine buying a 100 dollar company with 30 dollars of your own money and 70 dollars of debt. If you later sell it for 130 dollars and have paid down some of the loan, the gain accrues almost entirely to your tiny equity stake, turning a modest rise in the company's value into a large percentage gain on the cash you actually put in. It is the same reason a small down payment on a house that appreciates can double your money. The flip side is just as real. If the business stumbles, the debt does not care, and the equity gets wiped out first.
The Three Levers
Every buyout makes money through some mix of three levers. The first is paying down debt, where the company's cash flow steadily retires the loan and hands more of the company's value to the equity owner over time. The second is improving the business, growing revenue, cutting costs, and lifting margins so the company is simply worth more. The third is multiple expansion, selling the company at a higher valuation multiple than was paid for it, which is the least reliable lever because it depends on the market.
The cleanest buyouts are won on the second lever, real operational improvement. The ones that lean mostly on cheap debt and a rising market are the ones that blow up when conditions turn, which is why the best firms obsess over actually making the businesses they buy run better.
The Market in 2026
The buyout business has roared back. While the number of deals in early 2026 ran lower than the year before, the ones getting done were far larger, and a handful of giant transactions drove most of the activity. In 2025, just 13 deals above 10 billion dollars accounted for 274 billion dollars of buyout value, capped by the 56.6 billion dollar deal to take the video game maker Electronic Arts private, a new record for a leveraged buyout. The price firms were willing to pay also hit a record, with the typical buyout valued at 11.8 times the company's annual operating earnings.
The Criticism
Private equity draws heavy fire, and some of it lands. Loading a company with debt makes it fragile, and when a buyout goes wrong the job losses and bankruptcies are real. Critics point to cases where firms stripped assets and cut to the bone for a short-term gain. Defenders counter that the discipline of debt and focused ownership often forces necessary changes that public companies dodge for years, and that on average buyouts have delivered strong returns to the pension funds and endowments that invest in them. As with most tools in finance, the buyout is neither good nor evil. The outcome depends on how it is used.
Why the Exit Is Everything
A buyout is only as good as its exit, because the firm makes nothing until it sells. That has been the recent strain, with firms holding companies longer than planned in a slow market, which is why exits and secondary sales have become such a focus, reaching record levels as firms hunt for ways to return cash to their own investors. Understanding that the entire model hinges on buying well, improving the business, and selling at the right moment is the key to understanding private equity.
Why It Matters for the Role
The LBO model is one of the most demanding pieces of analysis in finance, because it ties together debt, cash flow, operations, and valuation in a single model that has to hold up over several years. Even far outside private equity, the discipline it teaches, how leverage amplifies both returns and risk, how operational improvement creates value, and how the exit drives everything, is exactly the way serious finance people learn to think about any investment.