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# Are Investors Undervaluing Zynex, Inc. (NASDAQ:ZYXI) By 28%?

Today we'll do a simple run through of a valuation method used to estimate the attractiveness of Zynex, Inc. (NASDAQ:ZYXI) as an investment opportunity by taking the expected future cash flows and discounting them to today's value. I will be using the Discounted Cash Flow (DCF) model. Don't get put off by the jargon, the math behind it is actually quite straightforward.

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.

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### Crunching the numbers

We are going to use a two-stage DCF model, which, as the name states, takes into account two stages of growth. The first stage is generally a higher growth period which levels off heading towards the terminal value, captured in the second 'steady growth' period. 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, and so the sum of these future cash flows is then discounted to today's value:

#### 10-year free cash flow (FCF) estimate

 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 Levered FCF (\$, Millions) \$9.67 \$14.67 \$16.75 \$18.55 \$20.09 \$21.43 \$22.60 \$23.65 \$24.62 \$25.52 Growth Rate Estimate Source Analyst x1 Analyst x1 Est @ 14.17% Est @ 10.73% Est @ 8.33% Est @ 6.65% Est @ 5.48% Est @ 4.65% Est @ 4.08% Est @ 3.67% Present Value (\$, Millions) Discounted @ 8.31% \$8.93 \$12.51 \$13.18 \$13.48 \$13.48 \$13.27 \$12.92 \$12.49 \$12.00 \$11.48

Present Value of 10-year Cash Flow (PVCF)= \$123.73m

"Est" = FCF growth rate estimated by Simply Wall St

The second stage is also known as Terminal Value, this is the business's cash flow after the first stage. The Gordon Growth formula is used to calculate Terminal Value at a future annual growth rate equal to the 10-year government bond rate of 2.7%. We discount the terminal cash flows to today's value at a cost of equity of 8.3%.

Terminal Value (TV) = FCF2029 Ã— (1 + g) Ã· (r â€“ g) = US\$26m Ã— (1 + 2.7%) Ã· (8.3% â€“ 2.7%) = US\$470m

Present Value of Terminal Value (PVTV) = TV / (1 + r)10 = \$US\$470m Ã· ( 1 + 8.3%)10 = \$211.27m

The total value, or equity value, is then the sum of the present value of the future cash flows, which in this case is \$335.00m. The last step is to then divide the equity value by the number of shares outstanding. This results in an intrinsic value estimate of \$10.36. Compared to the current share price of \$7.44, the company appears a touch undervalued at a 28% discount to where the stock price trades currently. Valuations are imprecise instruments though, rather like a telescope - move a few degrees and end up in a different galaxy. Do keep this in mind.

### The assumptions

Now the most important inputs to a discounted cash flow are the discount rate, and of course, the actual cash flows. You don't have to agree with these inputs, I recommend redoing the calculations yourself and playing with them. 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 Zynex 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 8.3%, which is based on a levered beta of 0.937. 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.

### Next Steps:

Although the valuation of a company is important, it shouldnâ€™t be the only metric you look at when researching a company. The DCF model is not a perfect stock valuation tool. Rather it should be seen as a guide to "what assumptions need to be true for this stock to be under/overvalued?" If a company grows at a different rate, or if its cost of equity or risk free rate changes sharply, the output can look very different. What is the reason for the share price to differ from the intrinsic value? For Zynex, There are three additional aspects you should further examine:

1. Financial Health: Does ZYXI have a healthy balance sheet? Take a look at our free balance sheet analysis with six simple checks on key factors like leverage and risk.
2. Future Earnings: How does ZYXI's growth rate compare to its peers and the wider market? Dig deeper into the analyst consensus number for the upcoming years by interacting with our free analyst growth expectation chart.
3. Other High Quality Alternatives: Are there other high quality stocks you could be holding instead of ZYXI? Explore our interactive list of high quality stocks to get an idea of what else is out there you may be missing!

PS. The Simply Wall St app conducts a discounted cash flow valuation for every stock on the NASDAQ every day. If you want to find the calculation for other stocks just search here.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.