Today we will run through one way of estimating the intrinsic value of ShockWave Medical, Inc. (NASDAQ:SWAV) by taking the forecast future cash flows of the company and discounting them back to today's value. We will take advantage of the Discounted Cash Flow (DCF) model for this purpose. Believe it or not, it's not too difficult to follow, as you'll see from our example!
Companies can be valued in a lot of ways, so we would point out that a DCF is not perfect for every situation. If you want to learn more about discounted cash flow, the rationale behind this calculation can be read in detail in the Simply Wall St analysis model.
Step by step through the calculation
We're using the 2-stage growth model, which simply means we take in account two stages of company's growth. In the initial period the company may have a higher growth rate and the second stage is usually assumed to have a stable growth rate. In the first stage we need to estimate the cash flows to the business over the next ten years. Where possible we use analyst estimates, but when these aren't available we extrapolate the previous free cash flow (FCF) from the last estimate or reported value. We assume companies with shrinking free cash flow will slow their rate of shrinkage, and that companies with growing free cash flow will see their growth rate slow, over this period. We do this to reflect that growth tends to slow more in the early years than it does in later years.
Generally we assume that a dollar today is more valuable than a dollar in the future, so we discount the value of these future cash flows to their estimated value in today's dollars:
10-year free cash flow (FCF) forecast
|Levered FCF ($, Millions)||US$46.6m||US$103.3m||US$144.3m||US$196.1m||US$235.7m||US$270.3m||US$299.8m||US$324.4m||US$345.0m||US$362.3m|
|Growth Rate Estimate Source||Analyst x1||Analyst x1||Analyst x1||Analyst x1||Est @ 20.19%||Est @ 14.72%||Est @ 10.89%||Est @ 8.21%||Est @ 6.34%||Est @ 5.02%|
|Present Value ($, Millions) Discounted @ 5.9%||US$44.0||US$92.2||US$122||US$156||US$177||US$192||US$201||US$206||US$207||US$205|
("Est" = FCF growth rate estimated by Simply Wall St)
Present Value of 10-year Cash Flow (PVCF) = US$1.6b
After calculating the present value of future cash flows in the initial 10-year period, we need to calculate the Terminal Value, which accounts for all future cash flows beyond the first stage. The Gordon Growth formula is used to calculate Terminal Value at a future annual growth rate equal to the 5-year average of the 10-year government bond yield of 2.0%. We discount the terminal cash flows to today's value at a cost of equity of 5.9%.
Terminal Value (TV)= FCF2031 × (1 + g) ÷ (r – g) = US$362m× (1 + 2.0%) ÷ (5.9%– 2.0%) = US$9.5b
Present Value of Terminal Value (PVTV)= TV / (1 + r)10= US$9.5b÷ ( 1 + 5.9%)10= US$5.4b
The total value, or equity value, is then the sum of the present value of the future cash flows, which in this case is US$7.0b. To get the intrinsic value per share, we divide this by the total number of shares outstanding. Relative to the current share price of US$184, the company appears about fair value at a 7.0% discount to where the stock price trades currently. The assumptions in any calculation have a big impact on the valuation, so it is better to view this as a rough estimate, not precise down to the last cent.
The calculation above is very dependent on two assumptions. The first is the discount rate and the other is the cash flows. Part of investing is coming up with your own evaluation of a company's future performance, so try the calculation yourself and check your own assumptions. The DCF also does not consider the possible cyclicality of an industry, or a company's future capital requirements, so it does not give a full picture of a company's potential performance. Given that we are looking at ShockWave Medical as potential shareholders, the cost of equity is used as the discount rate, rather than the cost of capital (or weighted average cost of capital, WACC) which accounts for debt. In this calculation we've used 5.9%, which is based on a levered beta of 0.889. Beta is a measure of a stock's volatility, compared to the market as a whole. We get our beta from the industry average beta of globally comparable companies, with an imposed limit between 0.8 and 2.0, which is a reasonable range for a stable business.
Although the valuation of a company is important, it shouldn't be the only metric you look at when researching a company. DCF models are not the be-all and end-all of investment valuation. Rather it should be seen as a guide to "what assumptions need to be true for this stock to be under/overvalued?" For instance, if the terminal value growth rate is adjusted slightly, it can dramatically alter the overall result. For ShockWave Medical, we've put together three fundamental factors you should explore:
- Risks: Consider for instance, the ever-present spectre of investment risk. We've identified 3 warning signs with ShockWave Medical , and understanding them should be part of your investment process.
- Management:Have insiders been ramping up their shares to take advantage of the market's sentiment for SWAV's future outlook? Check out our management and board analysis with insights on CEO compensation and governance factors.
- Other High Quality Alternatives: Do you like a good all-rounder? Explore our interactive list of high quality stocks to get an idea of what else is out there you may be missing!
PS. Simply Wall St updates its DCF calculation for every American stock every day, so if you want to find the intrinsic value of any other stock just search here.
This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.