Estimating The Fair Value Of Proto Labs, Inc. (NYSE:PRLB)

How far off is Proto Labs, Inc. (NYSE:PRLB) from its intrinsic value? Using the most recent financial data, we'll take a look at whether the stock is fairly priced by taking the expected future cash flows and discounting them to today's value. One way to achieve this is by employing 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. Anyone interested in learning a bit more about intrinsic value should have a read of the Simply Wall St analysis model.

See our latest analysis for Proto Labs

The model

We use what is known as a 2-stage model, which simply means we have two different periods of growth rates for the company's cash flows. Generally the first stage is higher growth, and the second stage is a lower growth phase. 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

	2022	2023	2024	2025	2026	2027	2028	2029	2030	2031
Levered FCF ($, Millions)	US$67.7m	US$69.7m	US$82.6m	US$94.1m	US$102.4m	US$109.3m	US$115.1m	US$120.1m	US$124.5m	US$128.4m
Growth Rate Estimate Source	Analyst x2	Analyst x1	Analyst x1	Analyst x1	Est @ 8.81%	Est @ 6.76%	Est @ 5.33%	Est @ 4.33%	Est @ 3.63%	Est @ 3.14%
Present Value ($, Millions) Discounted @ 6.9%	US$63.3	US$61.0	US$67.6	US$72.0	US$73.3	US$73.2	US$72.1	US$70.3	US$68.2	US$65.8

("Est" = FCF growth rate estimated by Simply Wall St)
Present Value of 10-year Cash Flow (PVCF) = US$686m

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 2.0%. We discount the terminal cash flows to today's value at a cost of equity of 6.9%.

Terminal Value (TV)= FCF₂₀₃₁ × (1 + g) ÷ (r – g) = US$128m× (1 + 2.0%) ÷ (6.9%– 2.0%) = US$2.7b

Present Value of Terminal Value (PVTV)= TV / (1 + r)¹⁰= US$2.7b÷ ( 1 + 6.9%)¹⁰= US$1.4b

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$2.0b. In the final step we divide the equity value by the number of shares outstanding. Relative to the current share price of US$78.3, 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.

Important assumptions

We would point out that the most important inputs to a discounted cash flow are the discount rate and of course the actual 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 Proto Labs 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 1.044. 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.

Looking Ahead:

Valuation is only one side of the coin in terms of building your investment thesis, and it is only one of many factors that you need to assess for a company. It's not possible to obtain a foolproof valuation with a DCF model. 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. For Proto Labs, we've compiled three important elements you should explore:

1. Risks: For instance, we've identified 3 warning signs for Proto Labs that you should be aware of.
2. Future Earnings: How does PRLB'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 Solid Businesses: Low debt, high returns on equity and good past performance are fundamental to a strong business. Why not explore our interactive list of stocks with solid business fundamentals to see if there are other companies you may not have considered!

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

If you’re looking to trade Proto Labs, open an account with the lowest-cost* platform trusted by professionals, Interactive Brokers. Their clients from over 200 countries and territories trade stocks, options, futures, forex, bonds and funds worldwide from a single integrated account. Promoted

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. 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.
^*Interactive Brokers Rated Lowest Cost Broker by StockBrokers.com Annual Online Review 2020

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