Are Investors Undervaluing Naturgy Energy Group, S.A. (BME:NTGY) By 20%?

In this article we are going to estimate the intrinsic value of Naturgy Energy Group, S.A. (BME:NTGY) by taking the expected future cash flows and discounting them to today's value. We will take advantage of the Discounted Cash Flow (DCF) model for this purpose. Believe it or not, it's not too difficult to follow, as you'll see from our example!

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 still have some burning questions about this type of valuation, take a look at the Simply Wall St analysis model.

Check out our latest analysis for Naturgy Energy Group

The calculation

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. 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.

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) forecast

	2022	2023	2024	2025	2026	2027	2028	2029	2030	2031
Levered FCF (€, Millions)	€1.26b	€1.32b	€1.31b	€1.43b	€1.47b	€1.50b	€1.53b	€1.56b	€1.58b	€1.60b
Growth Rate Estimate Source	Analyst x6	Analyst x4	Analyst x3	Analyst x3	Est @ 2.89%	Est @ 2.32%	Est @ 1.92%	Est @ 1.64%	Est @ 1.45%	Est @ 1.31%
Present Value (€, Millions) Discounted @ 6.3%	€1.2k	€1.2k	€1.1k	€1.1k	€1.1k	€1.0k	€999	€955	€912	€869

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

We now need to calculate the Terminal Value, which accounts for all the future cash flows after this ten year period. 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 1.0%. We discount the terminal cash flows to today's value at a cost of equity of 6.3%.

Terminal Value (TV)= FCF₂₀₃₁ × (1 + g) ÷ (r – g) = €1.6b× (1 + 1.0%) ÷ (6.3%– 1.0%) = €30b

Present Value of Terminal Value (PVTV)= TV / (1 + r)¹⁰= €30b÷ ( 1 + 6.3%)¹⁰= €17b

The total value, or equity value, is then the sum of the present value of the future cash flows, which in this case is €27b. To get the intrinsic value per share, we divide this by the total number of shares outstanding. Compared to the current share price of €22.3, the company appears a touch undervalued at a 20% 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.

Important assumptions

Now 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 Naturgy Energy Group 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 6.3%, which is based on a levered beta of 0.846. 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 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. Can we work out why the company is trading at a discount to intrinsic value? For Naturgy Energy Group, we've put together three further items you should further research:

1. Risks: Take risks, for example - Naturgy Energy Group has 2 warning signs we think you should be aware of.
2. Future Earnings: How does NTGY'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 BME every day. If you want to find the calculation for other stocks just search here.

If you’re looking to trade Naturgy Energy Group, 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.