Regular readers will know that we love our dividends at Simply Wall St, which is why it's exciting to see Quest Diagnostics Incorporated (NYSE:DGX) is about to trade ex-dividend in the next four days. Typically, the ex-dividend date is one business day before the record date which is the date on which a company determines the shareholders eligible to receive a dividend. The ex-dividend date is important because any transaction on a stock needs to have been settled before the record date in order to be eligible for a dividend. Meaning, you will need to purchase Quest Diagnostics' shares before the 14th of January to receive the dividend, which will be paid on the 29th of January.

The company's next dividend payment will be US$0.75 per share, and in the last 12 months, the company paid a total of US$3.00 per share. Calculating the last year's worth of payments shows that Quest Diagnostics has a trailing yield of 1.9% on the current share price of US$154.03. Dividends are an important source of income to many shareholders, but the health of the business is crucial to maintaining those dividends. That's why we should always check whether the dividend payments appear sustainable, and if the company is growing.

Dividends are typically paid out of company income, so if a company pays out more than it earned, its dividend is usually at a higher risk of being cut. Quest Diagnostics paid out a comfortable 39% of its profit last year. That said, even highly profitable companies sometimes might not generate enough cash to pay the dividend, which is why we should always check if the dividend is covered by cash flow. Fortunately, it paid out only 32% of its free cash flow in the past year.

It's encouraging to see that the dividend is covered by both profit and cash flow. This generally suggests the dividend is sustainable, as long as earnings don't drop precipitously.

Click here to see the company's payout ratio, plus analyst estimates of its future dividends.

Have Earnings And Dividends Been Growing?

Businesses with strong growth prospects usually make the best dividend payers, because it's easier to grow dividends when earnings per share are improving. Investors love dividends, so if earnings fall and the dividend is reduced, expect a stock to be sold off heavily at the same time. This is why it's a relief to see Quest Diagnostics earnings per share are up 6.9% per annum over the last five years. Management have been reinvested more than half of the company's earnings within the business, and the company has been able to grow earnings with this retained capital. We think this is generally an attractive combination, as dividends can grow through a combination of earnings growth and or a higher payout ratio over time.

Many investors will assess a company's dividend performance by evaluating how much the dividend payments have changed over time. Since the start of our data, 10 years ago, Quest Diagnostics has lifted its dividend by approximately 8.6% a year on average. We're glad to see dividends rising alongside earnings over a number of years, which may be a sign the company intends to share the growth with shareholders.

Final Takeaway

From a dividend perspective, should investors buy or avoid Quest Diagnostics? Earnings per share have been growing moderately, and Quest Diagnostics is paying out less than half its earnings and cash flow as dividends, which is an attractive combination as it suggests the company is investing in growth. We would prefer to see earnings growing faster, but the best dividend stocks over the long term typically combine significant earnings per share growth with a low payout ratio, and Quest Diagnostics is halfway there. Quest Diagnostics looks solid on this analysis overall, and we'd definitely consider investigating it more closely.

While it's tempting to invest in Quest Diagnostics for the dividends alone, you should always be mindful of the risks involved. Our analysis shows 1 warning sign for Quest Diagnostics and you should be aware of this before buying any shares.

A common investing mistake is buying the first interesting stock you see. Here you can find a full list of high-yield dividend stocks.

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.