Valuation using discounted cash flows explained

Example
MedICT is a medical ICT startup that has just finished its business plan. Its goal is to provide medical professionals with bookkeeping software.

Its only investor is required to wait for five years before making an exit. Therefore, MedICT is using a forecast period of 5 years.

The forward discount rates for each year have been chosen based on the increasing maturity of the company. Only operational cash flows (i.e. free cash flow to firm) have been used to determine the estimated yearly cash flow, which is assumed to occur at the end of each year (which is unrealistic especially for the year 1 cash flow; see comments aside). Figures are in $thousands:

Cash flows Year 1Year 2Year 3Year 4Year 5
align=left Revenues+30+100+160+330+460
align=left Personnel−30−80−110−160−200
align=left Car Lease−6−12−12−18−18
align=left Marketing−10−10 −10 −25 −30
align=left IT−20−20−20−25−30
align=left Total-36-22+8+102+182
align=left Risk GroupSeeking MoneyEarly StartupLate Start UpMature
align=left Forward Discount Rate60%40%30%25%20%
align=left Discount Factor0.6250.4460.3430.2750.229
Discounted Cash Flow(22)(10)32842
This gives a total value of 41 for the first five years' cash flows.
MedICT has chosen the perpetuity growth model to calculate the value of cash flows beyond the forecast period. They estimate that they will grow at about 6% for the rest of these years (this is extremely prudent given that they grew by 78% in year 5), and they assume a forward discount rate of 15% for beyond year 5. The terminal value is hence:(182*1.06 / (0.15–0.06)) × 0.229 = 491.

(Given that this is far bigger than the value for the first 5 years, it is suggested that the initial forecast period of 5 years is not long enough, and more time will be required for the company to reach maturity; although see discussion in article.)

MedICT does not have any debt so all that is required is to add together the present value of the explicitly forecast cash flows (41) and the continuing value (491), giving an equity value of $532,000.

Valuation using discounted cash flows (DCF valuation) is a method of estimating the current value of a company based on projected future cash flows adjusted for the time value of money.[1] The cash flows are made up of those within the “explicit” forecast period, together with a continuing or terminal value that represents the cash flow stream after the forecast period.In several contexts, DCF valuation is referred to as the "income approach".

Discounted cash flow valuation was used in industry as early as the 1700s or 1800s; it was explicated by John Burr Williams in his The Theory of Investment Value in 1938; it was widely discussed in financial economics in the 1960s; and became widely used in U.S. courts in the 1980s and 1990s.

This article details the mechanics of the valuation, via a worked example; it also discusses modifications typical for startups, private equity and venture capital, corporate finance "projects", and mergers and acquisitions, and for sector-specific valuations in financial services and mining.See Discounted cash flow for further discussion, and for context.

Basic formula for firm valuation using DCF model

Value of firm =

n
\sum
t=1
FCFFt
(1+WACCt)t

+

\left[FCFFn+1\right]
(WACCn+1-gn+1)
(1+WACCn)n

where

In general, "Value of firm" represents the firm's enterprise value (i.e. its market value as distinct from market price); for corporate finance valuations, this represents the project's net present value or NPV.The second term represents the continuing value of future cash flows beyond the forecasting term; here applying a "perpetuity growth model".

Note that for valuing equity, as opposed to "the firm", free cash flow to equity (FCFE) or dividends are modeled, and these are discounted at the cost of equity instead of WACC which incorporates the cost of debt.Free cash flows to the firm are those distributed among – or at least due to – all securities holders of a corporate entity (see); to equity, are those distributed to shareholders only.Where the latter are dividends then the dividend discount model can be applied, modifying the formula above.

Use

The diagram aside shows an overview of the process of company valuation. All steps are explained in detail below.

Determine forecast period

See main article: Forecast period (finance). The initial step is to decide the forecast period, i.e. the time period for which the individual yearly cash flows input to the DCF formula will be explicitly modeled. Cash flows after the forecast period are represented by a single number; see § Determine the continuing value below.

The forecast period must be chosen to be appropriate to the company's strategy, its market, or industry; theoretically corresponding to the time for the company's (excess) return to "converge" to that of its industry, with constant, long term growth applying to the continuing value thereafter; although, regardless, 5–10 years is common in practice (see for discussion of the economic argument here).

For private equity and venture capital investments, the period will depend on the investment timescale and exit strategy.

Determine cash flow for each forecast period

As above, an explicit cash flow forecast is required for each year during the forecast period. These must be "Free cash flows" or dividends.

Typically, this forecast will be constructed using historical internal accounting and sales data, in addition to external industry data and economic indicators (for these latter, outside of large institutions, typically relying on published surveys and industry reports).

The key aspect of the forecast is, arguably, predicting revenue, a function of the analyst's forecasts re market size, demand, inventory availability, and the firm's market share and market power.Future costs, fixed and variable, and investment in PPE (see, here, owner earnings) with corresponding capital requirements, can then be estimated as a function of sales via "common-sized analysis".

At the same time, the resultant line items must talk to the business' operations: in general, growth in revenue will require corresponding increases in working capital, fixed assets and associated financing; and in the long term, profitability (and other financial ratios) should tend to the industry average, as mentioned above; see, and .

Approaches to identifying which assumptions are most impactful on the value – and thus need the most attention – and to model "calibration" are discussed below (the process is then somewhat iterative). For the components / steps of business modeling here, see, as well as financial forecast more generally.

There are several context dependent modifications:

Alternate approaches within DCF valuation will more directly consider economic profit, and the definitions of "cashflow" will differ correspondingly; the best known is EVA. With the cost of capital correctly and correspondingly adjusted, the valuation should yield the same result,[7] for standard cases. These approaches may be considered more appropriate for firms with negative free cash flow several years out, but which are expected to generate positive cash flow thereafter. Further, these may be less sensitive to terminal value.[5] See .

Determine discount factor / rate

A fundamental element of the valuation is to determine the appropriate required rate of return, as based on the risk level associated with the company and its market.

Typically, for an established (listed) company:

  1. For the cost of equity, the analyst will apply a model such as the CAPM most commonly; see and Beta (finance). An unlisted company’s Beta can be based on that of a listed proxy as adjusted for gearing, ie debt, via Hamada's equation. (Other approaches, such as the "Build-Up method" or T-model are also applied.)
  2. The cost of debt may be calculated for each period as the scheduled after-tax interest payment as a percentage of outstanding debt; see .
  3. The value-weighted combination of these will then return the appropriate discount rate for each year of the forecast period. As the weight (and cost) of debt could vary over the forecast, each period's discount factor will be compounded over the periods to that date.

By contrast, for venture capital and private equity valuations – and particularly where the company is a startup, as in the example – the discount factor is often set by funding stage, as opposed to modeled ("Risk Group" in the example).[8] [9] In its early stages, where the business is more likely to fail, a higher return is demanded in compensation; when mature, an approach similar to the preceding may be applied.See: ; .(Some analysts may instead account for this uncertainty by adjusting the cash flows directly: using certainty equivalents; or applying (subjective) "haircuts" to the forecast numbers, a "penalized present value"; or via probability-weighting these as in rNPV.)

Corporate finance analysts usually apply the first, listed company, approach: here though it is the risk-characteristics of the project that must determine the cost of equity, and not those of the parent company. M&A analysts likewise apply the first approach, with risk as well as the target capital structure informing both the cost of equity and, naturally, WACC.[3] For the approach taken in the mining industry, where risk-characteristics can differ (dramatically) by property, see:.[10]

Determine current value

To determine current value, the analyst calculates the current value of the future cash flows simply by multiplying each period's cash flow by the discount factor for the period in question; see time value of money.

Where the forecast is yearly, an adjustment is sometimes made: although annual cash flows are discounted, it is not true that the entire cash flow comes in at the year end; rather, cash will flow in over the full year. To account for this, a "mid-year adjustment" is applied via the discount rate (and not to the forecast itself), affecting the required averaging.[11]

For companies with strong seasonality — e.g.: retailers and holiday sales; agribusiness with fluctuations in working capital linked to production; Oil and gas companies with weather related demand — further adjustments may be required; see:[12]

Determine the continuing value

See main article: Terminal value (finance). The continuing, or "terminal" value, is the estimated value of all cash flows after the forecast period.

Whichever approach, the terminal value is then discounted by the factor corresponding to the final explicit date.

Note that this step carries more risk than the previous: being more distant in time, and effectively summarizing the company's future, there is (significantly) more uncertainty as compared to the explicit forecast period; and yet, potentially (often[3]) this result contributes a significant proportion of the total value.Here, a very high proportion may suggest a flaw in the valuation (as commented in the example); but at the same time may, in fact, reflect how investors make money from equity investments – i.e. predominantly from capital gains or price appreciation.[13] Its implied exit multiple can then act as a check, or "triangulation", on the perpetuity derived number.[3]

Given this dependence on terminal value, analysts will often establish a "valuation range", or sensitivity table (see graphic), corresponding to various appropriate – and internally consistent – discount rates, exit multiples and perpetuity growth rates.For a discussion of the risks and advantages of the two methods, see .

For the valuation of mining projects[14] (i.e. as to opposed to listed mining corporates) the forecast period is the same as the "life of mine" – i.e. the DCF model will explicitly forecast all cashflows due to mining the reserve (including the expenses due to mine closure)– and a continuing value is therefore not part of the valuation.

Determine equity value

The equity value is the sum of the present values of the explicitly forecast cash flows, and the continuing value; see and .Where the forecast is of free cash flow to firm, as above, the value of equity is calculated by subtracting any outstanding debts from the total of all discounted cash flows; where free cash flow to equity (or dividends) has been modeled, this latter step is not required – and the discount rate would have been the cost of equity, as opposed to WACC.(Some add readily available cash to the FCFF value.)

The accuracy of the DCF valuation will be impacted by the accuracy of the various (numerous) inputs and assumptions.Addressing this, private equity and venture capital analysts, in particular, apply (some of) the following.[15] With the first two, the output price is then market related, and the model will be driven by the relevant variables and assumptions. The latter two can be applied only at this stage.

The DCF value may be applied differently depending on context.An investor in listed equity will compare the value per share to the share's traded price, amongst other stock selection criteria. To the extent that the price is lower than the DCF number, so she will be inclined to invest; see Margin of safety (financial), Undervalued stock, and Value investing. The above calibration will be less relevant here; reasonable and robust assumptions more so. A related approach is to "reverse engineer" the stock price; i.e. to "figure out how much cash flow the company would be expected to make to generate its current valuation... [then] depending on the plausibility of the cash flows, decide whether the stock is worth its going price."[21] More extensively, using a DCF model, investors can "estimat[e] the expectations embedded in a company's stock price.... [and] then assess the likelihood of expectations revisions."[22]

Corporations will often have several potential projects under consideration (or active), see . NPV is typically the primary selection criterion between these; although other investment measures considered, as visible from the DCF model itself, include ROI, IRR and payback period.Private equity and venture capital teams will similarly consider various measures and criteria, as well as recent comparable transactions, "Precedent Transactions Analysis", when selecting between potential investments; the valuation will typically be one step in, or following, a thorough due diligence.For an M&A valuation,[3] the DCF may be one of the several results combined so as to determine the value of the deal; note that for early stage companies, however, the DCF will typically not be included in the "valuation arsenal", given their low profitability and higher reliance on revenue growth.

See also

Literature

Standard texts

Discussion

Resources

Notes and References

  1. Pablo Fernandez (2015). Valuing Companies by Cash Flow Discounting: Ten Methods and Nine Theories. EFMA
  2. Dave Lishego (2019). The Founder’s Guide to Financial Modeling
  3. W. Brotherson, K. Eades, R. Harris, R. Higgins (2014). Company Valuation in Mergers and Acquisitions: How is Discounted Cash Flow Applied by Leading Practitioners?, Journal of Applied Finance, Vol. 24;2.
  4. Aswath Damodaran (2009). Valuing Financial Service Firms, Stern, NYU
  5. Doron Nissim (2010). Analysis and Valuation of Insurance Companies, Columbia Business School
  6. See "Putting a value on banks" in Yann Le Fur, et. al. (2022). "Corporate Finance: Theory and Practice." Wiley.
  7. Pablo Fernandez (2004). Equivalence of ten different discounted cash flow valuation methods. IESE Research Papers. D549
  8. Sanjai Bhagat (2013). Why do venture capitalists use such high discount rates?. The Journal of Risk Finance, Vol. 15 No. 1, 2014
  9. Kubr, Marchesi, Ilar, Kienhuis (1998). Starting Up. McKinsey & Company
  10. https://minewiki.engineering.queensu.ca/mediawiki/index.php/Discount_rate Discount rate
  11. Chris Haynes (N.D.). "Mid-Year Discount Definition"
  12. Web site: How to Value a Seasonal Company Discounting Cash Flows . 2021-10-15 . Fernandez, Pablo. 2019 . 406220 .
  13. [Aswath Damodaran]
  14. E.V. Lilford and R.C.A. Minnitt (2005). A comparative study of valuation methodologies for mineral developments, The Journal of The South African Institute of Mining and Metallurgy, Jan. 2005
  15. Aswath Damodaran (ND). Probabilistic Approaches in Valuation. Stern NYU
  16. Aswath Damodaran (2016). Musings on Markets; Myth 3
  17. Guillaume Desaché (ND). How to value a start-up?. HEC Paris
  18. Armin Varmaz, Thorsten Poddig, Jan Viebig (2008). Monte Carlo FCFF Models: Ch.6 in "Equity Valuation: Models from Leading Investment Banks". John Wiley & Sons.
  19. International Federation of Accountants (2008). Project Appraisal Using Discounted Cash Flow
  20. [Frank Fabozzi]
  21. Ben McClure (2015). Evaluate Stock Price With Reverse-Engineering DCF
  22. [Alfred Rappaport (economist)|Alfred Rappaport]