Two-Stage DCF Model
The two-stage DCF separates the forecast into an explicit high-growth period and a stable perpetuity, then applies a Gordon Growth terminal value at the seam. The most common DCF shape used in equity research and M&A.
The two-stage equation
The first term is the present value of the explicit-period free cash flows. The second term is the terminal value computed at the end of year n using Gordon Growth with the stable-stage growth rate gstable, then discounted back to today.
Three setups where two-stage is the natural choice
Software / biotech / consumer-tech businesses where the next 5 to 10 years of growth will be very different from the steady state. A single Gordon Growth rate would understate either the near term or the long run.
Capital-intensive cyclicals where you want to forecast the trough-to-peak explicit window, then assume long-run normalised cash flow in perpetuity.
Operating-leverage businesses where margins expand over the explicit window and then settle. The explicit period captures the expansion; the terminal period applies the run-rate margin.
The abrupt transition problem
Two-stage assumes growth steps down instantly from the explicit rate to the stable rate at year n. Real businesses decelerate gradually. If your explicit growth is well above the stable rate, consider an H-model or a three-stage build with a fade period.