The Definitive Guide to DCF Valuation for Equity Research

Discounted cash flow (DCF) analysis remains the gold standard for intrinsic valuation. The premise is straightforward: a company is worth the present value of all the cash it will generate in the future. In practice, this means projecting free cash flows over an explicit forecast period, estimating a terminal value for all cash flows beyond that horizon, and discounting everything back to today at an appropriate rate.

Free cash flow to the firm (FCFF) is the most common starting point. Begin with EBIT, apply the tax rate to get after-tax operating income (NOPAT), add back depreciation and amortization, subtract capital expenditures, and adjust for changes in net working capital. This gives you the cash available to all capital providers -- both debt and equity holders.

The discount rate for FCFF is the weighted average cost of capital (WACC). This blends the cost of equity (often estimated using the Capital Asset Pricing Model) with the after-tax cost of debt, weighted by their respective shares of the capital structure. Small changes in WACC can have a dramatic effect on valuation, which is why sensitivity analysis is critical.

Terminal value typically accounts for 60-80% of total enterprise value, making it the most important (and most uncertain) component of any DCF. The two standard approaches are the Gordon Growth Model (which assumes cash flows grow at a constant rate forever) and the exit multiple method (which applies an EV/EBITDA multiple to terminal year figures). Using both as a cross-check is good practice.

Bridging from enterprise value to equity value requires subtracting net debt (total debt minus cash and equivalents), minority interests, and preferred equity, then adding equity investments. Dividing equity value by diluted shares outstanding gives you the implied share price -- your bottom-up price target.

The most important lesson in DCF analysis is that the output is only as good as the inputs. Garbage in, garbage out. Spend the majority of your time on understanding the business and getting the revenue and margin assumptions right. The mechanics of discounting are simple; the art is in the forecasting.