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Is Spirax-Sarco Engineering plc (LON:SPX) Worth UK£103 Based On Its Intrinsic Value?

·5-min read

In this article we are going to estimate the intrinsic value of Spirax-Sarco Engineering plc (LON:SPX) by taking the expected future cash flows and discounting them to today's value. Our analysis will employ the Discounted Cash Flow (DCF) model. It may sound complicated, but actually it is quite simple!

Remember though, that there are many ways to estimate a company's value, and a DCF is just one method. For those who are keen learners of equity analysis, the Simply Wall St analysis model here may be something of interest to you.

See our latest analysis for Spirax-Sarco Engineering

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. 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 need to discount the sum of these future cash flows to arrive at a present value estimate:

10-year free cash flow (FCF) estimate

2022

2023

2024

2025

2026

2027

2028

2029

2030

2031

Levered FCF (£, Millions)

UK£205.5m

UK£234.2m

UK£266.3m

UK£282.9m

UK£296.0m

UK£306.4m

UK£314.7m

UK£321.5m

UK£327.3m

UK£332.2m

Growth Rate Estimate Source

Analyst x6

Analyst x6

Analyst x3

Est @ 6.23%

Est @ 4.63%

Est @ 3.5%

Est @ 2.72%

Est @ 2.17%

Est @ 1.78%

Est @ 1.51%

Present Value (£, Millions) Discounted @ 5.7%

UK£194

UK£209

UK£225

UK£226

UK£224

UK£219

UK£213

UK£206

UK£198

UK£190

("Est" = FCF growth rate estimated by Simply Wall St)
Present Value of 10-year Cash Flow (PVCF) = UK£2.1b

We now need to calculate the Terminal Value, which accounts for all the future cash flows after this ten year period. 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 (0.9%) 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 5.7%.

Terminal Value (TV)= FCF2031 × (1 + g) ÷ (r – g) = UK£332m× (1 + 0.9%) ÷ (5.7%– 0.9%) = UK£6.9b

Present Value of Terminal Value (PVTV)= TV / (1 + r)10= UK£6.9b÷ ( 1 + 5.7%)10= UK£4.0b

The total value is the sum of cash flows for the next ten years plus the discounted terminal value, which results in the Total Equity Value, which in this case is UK£6.1b. To get the intrinsic value per share, we divide this by the total number of shares outstanding. Compared to the current share price of UK£103, the company appears slightly overvalued at the time of writing. Remember though, that this is just an approximate valuation, and like any complex formula - garbage in, garbage out.

dcf
dcf

The assumptions

The calculation above is very dependent on two assumptions. The first is the discount rate and the other is the 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 Spirax-Sarco Engineering 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 5.7%, which is based on a levered beta of 1.002. 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:

Although the valuation of a company is important, it ideally won't be the sole piece of analysis you scrutinize for 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. 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 exceeding the intrinsic value? For Spirax-Sarco Engineering, we've compiled three essential elements you should further examine:

  1. Risks: For example, we've discovered 1 warning sign for Spirax-Sarco Engineering that you should be aware of before investing here.

  2. Future Earnings: How does SPX'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 LSE 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.