Many investors often associate the health care sector with volatile biotech stocks that can soar or plunge by double digits in a single day. However, investors shouldn't overlook the big names in the pharmaceutical field such as Johnson & Johnson (NYSE:JNJ), Pfizer (NYSE:PFE), and Merck (NYSE:MRK), which offer stable, long-term returns and generous dividends instead of back-breaking roller-coaster thrills.

Let's discuss which of these three big pharma companies offers the best dividend and stability for more passive income investors.

Which company offers the biggest yield?
Let's first compare the trailing, forward, and five-year average annual dividend yields of these three companies.


Trailing Annual Dividend Yield

Forward Annual Dividend Yield

5-Year Average
Dividend Yield

Johnson & Johnson












Source: Yahoo Finance, February 25.

J&J clearly trails Pfizer and Merck in this department. In addition, J&J's stock price has trailed both companies over the past five years:

JNJ Chart

Source: YCharts.

Therefore, in terms of yield and price appreciation, J&J initially looks like a weaker investment than Pfizer and Merck. However, investors should remember that J&J is the largest of these three giants -- with a market cap of $257 billion, compared to Pfizer's $207 billion and Merck's $164 billion -- and, as such, is expected to grow at a slower rate.

Which company is the most generous?
Yet a company's dividend yield is only part of the big picture. The cash payout ratio, or the percentage of a company's free cash flow, or FCF, paid back to the investors, also reveals how generous a company is toward its shareholders. Because FCF data are not yet available for all three companies, I have included information from third quarter 2012 to third quarter 2013.

MRK Cash Dividend Payout Ratio (TTM) Chart

MRK Cash Dividend Payout Ratio (TTM) data by YCharts

Pfizer's cash dividend payout ratio is the lowest among these three..

Which company has the best history of boosting its dividend?
Meanwhile, a company's history of boosting its dividend speaks volumes about its commitment toward long-term shareholders. Let's take a look at the annual dividends of these three companies over the past five fiscal years.

Fiscal Year

& Johnson























Percent change between 2009 and 2013




Source: Capital IQ, February 25, author's calculations.

J&J has been able to continuously increase its dividend by more than Pfizer and Merck -- mainly due to billion-dollar patent cliffs at the latter two.

Pfizer's blockbuster cholesterol drug Lipitor, which generated peak sales of $13 billion, lost patent protection in 2011. To stabilize its bottom line, Pfizer cut jobs, sold off several non-core businesses, and reduced its dividend. Merck also sustained a similar blow when its blockbuster asthma treatment Singulair, which generated peak sales of $5 billion, went off patent in 2012.

By comparison, the only significant patent expiration for J&J in the next five years is Remicade, its best-selling rheumatoid arthritis treatment, which will go off patent in Europe in 2015 and in the U.S. in 2018. However, Remicade isn't Lipitor or Singulair -- the drug only accounts for 9% of J&J's top line. Therefore, J&J is unlikely to stop its tradition of raising its dividend every year.

The Foolish bottom line
With three core businesses -- consumer health care, branded pharmaceuticals, and medical devices -- J&J is the most diversified and well-balanced choice of the three. By comparison, Merck and Pfizer are much more focused on branded pharmaceuticals, which can experience more volatility due to patent expirations and generic competition.

However, both Pfizer and Merck have controlled their bottom lines and dividends with admirable discipline in times of adversity. As a result, their investors have been handsomely rewarded for staying with them for the long term. Therefore, even though J&J is the best "set it and forget it" option for novice investors, Pfizer and Merck are also solid long-term income investments that can stomach a few bumps along the way.

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Leo Sun has no position in any stocks mentioned. The Motley Fool recommends and owns shares of Johnson & Johnson. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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