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# Is Union Pacific a Cash King?

As an investor, it pays to follow the cash. If you figure out how a company moves its money, you might eventually find some of that cash flowing into your pockets.

In this series, we'll highlight four companies in an industry, and compare their "cash king margins" over time, trying to determine which has the greatest likelihood of putting cash back in your pocket. After all, a company can pay dividends and buy back stock only after it's actually received cash -- not just when it books those accounting figments known as "profits."

Today, let's look at Union Pacific (NYSE: UNP  ) and three of its peers.

The cash king margin
Looking at a company's cash flow statement can help you determine whether its free cash flow actually backs up its reported profit. Companies that can create 10% or more free cash flow from their revenue can be powerful compounding machines for your portfolio. A sustained high cash king margin can be a good predictor of long-term stock returns.

To find the cash king margin, divide the free cash flow from the cash flow statement by sales:

Cash king margin = Free cash flow / sales

Let's take McDonald's as an example. In the four quarters ending in December, the restaurateur generated \$7.15 billion in operating cash flow. It invested about \$2.73 billion in property, plant, and equipment. To calculate free cash flow, subtract McDonald's investment (\$2.73 billion) from its operating cash flow (\$7.15 billion). That leaves us with \$4.42 billion in free cash flow, which the company can save for future expenditures or distribute to shareholders.

Taking McDonald's sales of \$27.0 billion over the same period, we can figure that the company has a cash king margin of about 16.4% -- a nice high number. In other words, for every dollar of sales, McDonald's produces more than \$0.16 in free cash.

Ideally, we'd like to see the cash king margin top 10%. The best blue chips can notch numbers greater than 20%, making them true cash dynamos. But some businesses, including many types of retailing, just can't sustain such margins.

We're also looking for companies that can consistently increase their margins over time, which indicates that their competitive position is improving. Erratic swings in margins could signal a deteriorating business, or perhaps some financial skullduggery; you'll have to dig deeper to discover the reason.

Four companies
Here are the cash king margins for four industry peers over a few periods:

Company Cash King Margin (TTM) 1 Year Ago 3 Years Ago 5 Years Ago
Union Pacific 13.4% 9.6% 5.0% 0.7%
Canadian National Railway 15.0% 17.0% 7.2% 20.8%
CSX 10.2% 13.4% 10.4% 4.4%
Norfolk Southern 9.6% 13.1% 10.9% 10.9%

Source: S&P Capital IQ. TTM = trailing 12 months.

Canadian National Railway (NYSE: CNI  ) has the highest cash king margins of the listed companies, but has seen its margins fall by nearly 6 percentage points from five years ago. Union Pacific isn't far behind, but has seen its margins steadily increase over the past five years. CSX (NYSE: CSX  ) also meets our 10% threshold, but its current margins are the lowest they have been in three years. Norfolk Southern (NYSE: NSC  ) doesn't currently meet our 10% threshold for attractiveness, but it is within a half a percentage point of doing so. However, its current margins are the lowest they have been in five years. Compare these returns to the blue chips of software and biotech to get some context.

Union Pacific has benefited from an improving economy and high fuel prices that drive businesses to look for more cost-effective methods for transporting their goods. These conditions have also helped other railroad businesses, with Norfolk Southern reporting increases in its coal and automotive shipments a few months ago, and CSX reporting higher overall freight volume.

While CSX and Norfolk Southern have a stronger record of past dividend growth, Union Pacific offers a solid 2.2% dividend yield, which ties with CSX and beats out Canadian National Railway's 1.9% yield. Norfolk Southern is the outlier, with a 2.9% yield.

The cash king margin can help you find highly profitable businesses, but it should only be the start of your search. The ratio does have its limits, especially for fast-growing small businesses. Many such companies reinvest all of their cash flow into growing the business, leaving them little or no free cash -- but that doesn't necessarily make them poor investments. Conversely, the formula works better for slower-growing blue chips. You'll need to look closer to determine exactly how a company is using its cash.

Still, if you can cut through the earnings headlines to follow the cash instead, you might be on the path toward seriously great investments.

Want to read more about Union Pacific? Add it to My Watchlist, which will find all of our Foolish analysis on this stock.

Jim Royal owns shares of McDonald's. The Motley Fool owns shares of Berkshire Hathaway. Motley Fool newsletter services have recommended buying shares of Berkshire Hathaway, McDonald's, and Canadian National Railway. The Motley Fool has a disclosure policy. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. Try any of our Foolish newsletter services free for 30 days.

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• ###### Report this Comment On April 09, 2012, at 3:09 PM, ldkoehler wrote:

Union Pacific has a stable, understandable business model that generates profits and free cash flow in a consistent and predictable manner. And it's at a good price - it's an attractive investment.

UNP's business model generated an ROIC of 8.4% in 2011, better than 64% of companies. And UNP's ROIC has been consistently improving for the last 3 years. Their shipping business is stable - we're not likely to see radical changes in the business anytime soon.

UNP's current stock price of ~\$108.65 implies that they'll maintain their current competitive position for just 8 years - where the S&P 500 requires almost 20 years.

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Jim Royal
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Jim is a special-situations investor focusing on transactional events (such as spinoffs, recapitalizations, or reorganizations, among others) that create advantageous stock mispricings.

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