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Does This Valuation Of Power Integrations, Inc. (NASDAQ:POWI) Imply Investors Are Overpaying?

Simply Wall St ·  10/05 21:15

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

We would caution that there are many ways of valuing a company and, like the DCF, each technique has advantages and disadvantages in certain scenarios. If you still have some burning questions about this type of valuation, take a look at the Simply Wall St analysis model.

See our latest analysis for Power Integrations

Is Power Integrations Fairly Valued?

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.

A DCF is all about the idea that a dollar in the future is less valuable than a dollar today, 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$152.3m US$170.2m US$165.3m US$162.9m US$162.2m US$162.7m US$164.0m US$165.8m US$168.1m US$170.7m
Growth Rate Estimate Source Analyst x1 Analyst x1 Est @ -2.89% Est @ -1.44% Est @ -0.42% Est @ 0.29% Est @ 0.78% Est @ 1.13% Est @ 1.37% Est @ 1.54%
Present Value ($, Millions) Discounted @ 6.9% US$142 US$149 US$135 US$125 US$116 US$109 US$103 US$97.0 US$92.0 US$87.3

("Est" = FCF growth rate estimated by Simply Wall St)
Present Value of 10-year Cash Flow (PVCF) = US$1.2b

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. For a number of reasons a very conservative growth rate is used that cannot exceed that of a country's GDP growth. In this case we have used the 5-year average of the 10-year government bond yield (1.9%) to estimate future growth. In the same way as with the 10-year 'growth' period, we discount future cash flows to today's value, using a cost of equity of 6.9%.

Terminal Value (TV)= FCF2032 × (1 + g) ÷ (r – g) = US$171m× (1 + 1.9%) ÷ (6.9%– 1.9%) = US$3.5b

Present Value of Terminal Value (PVTV)= TV / (1 + r)10= US$3.5b÷ ( 1 + 6.9%)10= US$1.8b

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$2.9b. In the final step we divide the equity value by the number of shares outstanding. Compared to the current share price of US$67.9, the company appears potentially overvalued at the time of writing. Remember though, that this is just an approximate valuation, and like any complex formula - garbage in, garbage out.

dcfNasdaqGS:POWI Discounted Cash Flow October 5th 2022

The Assumptions

The calculation above is very dependent on two assumptions. The first is the discount rate and the other is the 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 Power Integrations 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 6.9%, which is based on a levered beta of 1.176. 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.

Moving On:

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. Preferably you'd apply different cases and assumptions and see how they would impact the company's valuation. For example, changes in the company's cost of equity or the risk free rate can significantly impact the valuation. Why is the intrinsic value lower than the current share price? For Power Integrations, there are three additional aspects you should assess:

  1. Risks: As an example, we've found 2 warning signs for Power Integrations (1 shouldn't be ignored!) that you need to consider before investing here.
  2. Management:Have insiders been ramping up their shares to take advantage of the market's sentiment for POWI's future outlook? Check out our management and board analysis with insights on CEO compensation and governance factors.
  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.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.
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.

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