DCF — Discounted Cash Flow
Valuing a business by directly estimating all the cash it will ever generate — and what that's worth today.
Every valuation multiple covered earlier in this track (P/E, P/S, EV/EBITDA) is a shortcut — comparing a company's price to some single number and judging it relative to other companies. Discounted Cash Flow works differently: it tries to directly estimate every dollar of cash a business will generate in the future, then converts that entire future stream into a single value in today's dollars.
InsiderWolf doesn't compute a live DCF for any ticker — unlike the other Valuation lessons, there's no product number to check this against. It's covered here because it's the single most commonly-referenced valuation method in serious fundamental analysis, and understanding its logic sharpens every multiple-based lesson elsewhere on this track, since multiples are really just a shortcut for what a DCF calculates directly.
Every future year's projected cash flow gets shrunk ("discounted") by how far away it is — a dollar 10 years out is worth much less today than a dollar next year.
The discount rate represents the return that could be earned elsewhere at similar risk — a higher rate shrinks every future year's cash flow more aggressively, lowering the whole valuation. This is the direct mechanical link to the Interest Rates lesson later in this track: when broader interest rates rise, the discount rate used in DCF models typically rises with them, a real, mechanical reason rising rates pressure valuations — especially for companies whose cash flows are expected mostly in the distant future.
A company is projected to generate $10M in cash flow 10 years from now. Discounted at 5% per year, that $10M is worth about $6.1M in today's dollars. Discounted at 10% per year instead, the identical $10M ten years out is worth only about $3.9M today — the exact same future cash flow, valued at nearly 40% less, purely because the discount rate assumption changed.
- A DCF is only as reliable as its assumptions — the future cash flow projections and the discount rate are both estimates, not facts.
- It's most useful for businesses with relatively predictable, stable cash flows — a fast-growing, unprofitable company's DCF rests almost entirely on distant, highly uncertain projections.
- Multiples (P/E, EV/EBITDA) are a fast approximation of what a full DCF would say — when the two disagree sharply, it's worth understanding why before trusting either blindly.