It looks like Comcast Corporation (NASDAQ:CMCSA) is about to go ex-dividend in the next four days. The ex-dividend date is usually set to be one business day before the record date which is the cut-off date on which you must be present on the company's books as a shareholder in order to receive the dividend. It is important to be aware of the ex-dividend date because any trade on the stock needs to have been settled on or before the record date. Meaning, you will need to purchase Comcast's shares before the 2nd of April to receive the dividend, which will be paid on the 24th of April.

The company's next dividend payment will be US$0.31 per share, on the back of last year when the company paid a total of US$1.24 to shareholders. Calculating the last year's worth of payments shows that Comcast has a trailing yield of 2.9% on the current share price of US$43.07. We love seeing companies pay a dividend, but it's also important to be sure that laying the golden eggs isn't going to kill our golden goose! That's why we should always check whether the dividend payments appear sustainable, and if the company is growing.

Dividends are usually paid out of company profits, so if a company pays out more than it earned then its dividend is usually at greater risk of being cut. That's why it's good to see Comcast paying out a modest 31% of its earnings. A useful secondary check can be to evaluate whether Comcast generated enough free cash flow to afford its dividend. Thankfully its dividend payments took up just 37% of the free cash flow it generated, which is a comfortable payout ratio.

It's positive to see that Comcast's dividend is covered by both profits and cash flow, since this is generally a sign that the dividend is sustainable, and a lower payout ratio usually suggests a greater margin of safety before the dividend gets cut.

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. With that in mind, we're encouraged by the steady growth at Comcast, with earnings per share up 8.6% on average 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. Organisations that reinvest heavily in themselves typically get stronger over time, which can bring attractive benefits such as stronger earnings and dividends.

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, Comcast has lifted its dividend by approximately 12% 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.

To Sum It Up

Is Comcast worth buying for its dividend? Earnings per share growth has been growing somewhat, and Comcast is paying out less than half its earnings and cash flow as dividends. This is interesting for a few reasons, as it suggests management may be reinvesting heavily in the business, but it also provides room to increase the dividend in time. 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 Comcast is halfway there. Overall we think this is an attractive combination and worthy of further research.

So while Comcast looks good from a dividend perspective, it's always worthwhile being up to date with the risks involved in this stock. To help with this, we've discovered 2 warning signs for Comcast that you should be aware of before investing in their 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.

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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.