EBITDA
EBITDA stands for Earnings Before Interest, Taxes, Depreciation, and Amortization, and is widely used as a proxy for operating cash flow and a key input in leveraged buyout (LBO) and M&A valuation.
EBITDA was designed to strip away the effects of financing decisions and non-cash accounting charges, leaving a number that more closely approximates the cash-generating power of a business. By adding back depreciation (the spreading of a capital asset's cost over its useful life) and amortization (the write-down of intangible assets acquired in deals), EBITDA avoids penalizing companies that own a lot of physical assets or have made major acquisitions.
In leveraged buyouts and credit markets, EBITDA is the lingua franca of valuation. Private equity firms evaluate acquisition targets using EV/EBITDA multiples, and lenders size loans as a multiple of EBITDA — a company with $500 million of EBITDA might comfortably support $2.5 billion of debt (5× leverage). The credit covenants in high-yield bond indentures are typically structured around EBITDA thresholds, making it a real-time measure of financial health watched by lenders.
Dell Technologies is a classic case where EBITDA diverges significantly from GAAP net income due to massive amortization from its acquisition of EMC in 2016. The acquisition generated tens of billions in intangible asset amortization that hit GAAP earnings for years, making the company look far less profitable than its cash generation implied. Analysts who focused on EBITDA or free cash flow rather than GAAP net income got a truer picture of the underlying business.
Warren Buffett is famously skeptical of EBITDA, quipping that 'depreciation is the most dishonest part of EBITDA.' His point is that depreciation represents real economic costs — the wearing out of physical assets that must eventually be replaced. Adding it back to earnings can make capital-intensive businesses appear more profitable than they really are on a cash basis. For a railroad or a refinery, the annual capex required just to maintain existing capacity is enormous and should not be waved away.
EBITDA margin — EBITDA divided by revenue — is a widely used profitability comparison tool. Restaurant chains, for example, are commonly compared on EBITDA margins (often 15-25% for well-run chains) because depreciation on kitchen equipment and amortization of franchise rights can distort net income comparisons. Investors should always pair EBITDA analysis with a look at capex requirements to understand how much of the EBITDA actually becomes free cash flow.