Calculating The Fair Value Of Westinghouse Air Brake Technologies Corporation (NYSE:WAB)

Key Insights

• The projected fair value for Westinghouse Air Brake Technologies is US$139 based on 2 Stage Free Cash Flow to Equity
• Current share price of US$129 suggests Westinghouse Air Brake Technologies is potentially trading close to its fair value
• The US$142 analyst price target for WAB is 2.3% more than our estimate of fair value

Today we'll do a simple run through of a valuation method used to estimate the attractiveness of Westinghouse Air Brake Technologies Corporation (NYSE:WAB) as an investment opportunity 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. Models like these may appear beyond the comprehension of a lay person, but they're fairly easy to follow.

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 Westinghouse Air Brake Technologies

The Calculation

We're using the 2-stage growth model, which simply means we take in account two stages of company's growth. In the initial period the company may have a higher growth rate and the second stage is usually assumed to have a stable growth rate. To start off with, we need to estimate 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, and so the sum of these future cash flows is then discounted to today's value:

10-year free cash flow (FCF) estimate

	2024	2025	2026	2027	2028	2029	2030	2031	2032	2033
Levered FCF ($, Millions)	US$1.12b	US$1.30b	US$1.38b	US$1.45b	US$1.51b	US$1.56b	US$1.61b	US$1.66b	US$1.70b	US$1.75b
Growth Rate Estimate Source	Analyst x5	Analyst x4	Analyst x1	Est @ 4.91%	Est @ 4.10%	Est @ 3.54%	Est @ 3.14%	Est @ 2.86%	Est @ 2.67%	Est @ 2.54%
Present Value ($, Millions) Discounted @ 7.8%	US$1.0k	US$1.1k	US$1.1k	US$1.1k	US$1.0k	US$996	US$952	US$908	US$865	US$823

("Est" = FCF growth rate estimated by Simply Wall St)
Present Value of 10-year Cash Flow (PVCF) = US$9.9b

The second stage is also known as Terminal Value, this is the business's cash flow after 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 (2.2%) 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 7.8%.

Terminal Value (TV)= FCF₂₀₃₃ × (1 + g) ÷ (r – g) = US$1.7b× (1 + 2.2%) ÷ (7.8%– 2.2%) = US$32b

Present Value of Terminal Value (PVTV)= TV / (1 + r)¹⁰= US$32b÷ ( 1 + 7.8%)¹⁰= US$15b

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 US$25b. To get the intrinsic value per share, we divide this by the total number of shares outstanding. Relative to the current share price of US$129, the company appears about fair value at a 7.2% 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

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 Westinghouse Air Brake 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 7.8%, which is based on a levered beta of 1.122. 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 Westinghouse Air Brake 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. 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 instance, if the terminal value growth rate is adjusted slightly, it can dramatically alter the overall result. For Westinghouse Air Brake Technologies, we've compiled three pertinent aspects you should further examine:

1. Financial Health: Does WAB have a healthy balance sheet? Take a look at our free balance sheet analysis with six simple checks on key factors like leverage and risk.
2. Management:Have insiders been ramping up their shares to take advantage of the market's sentiment for WAB's future outlook? Check out our management and board analysis with insights on CEO compensation and governance factors.
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. Simply Wall St updates its DCF calculation for every American stock every day, so if you want to find the intrinsic value of any other stock 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.