Estimating The Intrinsic Value Of iRhythm Technologies, Inc. (NASDAQ:IRTC)

Key Insights

• Using the 2 Stage Free Cash Flow to Equity, iRhythm Technologies fair value estimate is US$113
• iRhythm Technologies' US$121 share price indicates it is trading at similar levels as its fair value estimate
• Our fair value estimate is 26% lower than iRhythm Technologies' analyst price target of US$153

Does the May share price for iRhythm Technologies, Inc. (NASDAQ:IRTC) reflect what it's really worth? Today, we will estimate the stock's intrinsic value by projecting its future cash flows and then discounting them to today's value. This will be done using the Discounted Cash Flow (DCF) model. Believe it or not, it's not too difficult to follow, as you'll see from our example!

Remember though, that there are many ways to estimate a company's value, and a DCF is just one method. Anyone interested in learning a bit more about intrinsic value should have a read of the Simply Wall St analysis model.

View our latest analysis for iRhythm Technologies

What's The Estimated Valuation?

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. To begin with, we have to get estimates of the next ten years of cash flows. 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) estimate

	2023	2024	2025	2026	2027	2028	2029	2030	2031	2032
Levered FCF ($, Millions)	-US$85.0m	-US$4.00m	US$52.0m	US$85.1m	US$123.6m	US$163.5m	US$201.5m	US$235.5m	US$264.8m	US$289.6m
Growth Rate Estimate Source	Analyst x1	Analyst x1	Analyst x1	Est @ 63.68%	Est @ 45.21%	Est @ 32.28%	Est @ 23.23%	Est @ 16.89%	Est @ 12.46%	Est @ 9.35%
Present Value ($, Millions) Discounted @ 7.5%	-US$79.1	-US$3.5	US$41.9	US$63.8	US$86.2	US$106	US$122	US$132	US$139	US$141

("Est" = FCF growth rate estimated by Simply Wall St)
Present Value of 10-year Cash Flow (PVCF) = US$749m

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 5-year average of the 10-year government bond yield of 2.1%. We discount the terminal cash flows to today's value at a cost of equity of 7.5%.

Terminal Value (TV)= FCF₂₀₃₂ × (1 + g) ÷ (r – g) = US$290m× (1 + 2.1%) ÷ (7.5%– 2.1%) = US$5.5b

Present Value of Terminal Value (PVTV)= TV / (1 + r)¹⁰= US$5.5b÷ ( 1 + 7.5%)¹⁰= US$2.7b

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$3.4b. In the final step we divide the equity value by the number of shares outstanding. Relative to the current share price of US$121, the company appears around fair value at the time of writing. Remember though, that this is just an approximate valuation, and like any complex formula - garbage in, garbage out.

The Assumptions

Now the most important inputs to a discounted cash flow are the discount rate, and of course, the actual cash flows. If you don't agree with these result, have a go at the calculation yourself and play with the 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 iRhythm Technologies 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 7.5%, which is based on a levered beta of 0.902. 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.

SWOT Analysis for iRhythm Technologies

Next Steps:

Although the valuation of a company is important, it is only one of many factors that you need to assess for a company. DCF models are not the be-all and end-all of investment valuation. Instead the best use for a DCF model is to test certain assumptions and theories to see if they would lead to the company being undervalued or overvalued. For example, changes in the company's cost of equity or the risk free rate can significantly impact the valuation. For iRhythm Technologies, we've compiled three important items you should assess:

1. Risks: You should be aware of the 3 warning signs for iRhythm Technologies we've uncovered before considering an investment in the company.
2. Future Earnings: How does IRTC'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: 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. The Simply Wall St app conducts a discounted cash flow valuation for every stock on the NASDAQGS every day. If you want to find the calculation for other stocks just search here.

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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.