Regular readers will know that we love our dividends at Simply Wall St, which is why it's exciting to see Select Medical Holdings Corporation (NYSE:SEM) is about to trade ex-dividend in the next three days. The ex-dividend date is one business day before the record date, which is the cut-off date for shareholders to be present on the company's books to be eligible for a dividend payment. The ex-dividend date is an important date to be aware of as any purchase of the stock made on or after this date might mean a late settlement that doesn't show on the record date. Thus, you can purchase Select Medical Holdings' shares before the 13th of November in order to receive the dividend, which the company will pay on the 26th of November.

The company's next dividend payment will be US$0.125 per share, and in the last 12 months, the company paid a total of US$0.50 per share. Last year's total dividend payments show that Select Medical Holdings has a trailing yield of 1.3% on the current share price of US$39.27. If you buy this business for its dividend, you should have an idea of whether Select Medical Holdings's dividend is reliable and sustainable. So we need to check whether the dividend payments are covered, and if earnings are growing.

Check out our latest analysis for Select Medical Holdings

If a company pays out more in dividends than it earned, then the dividend might become unsustainable - hardly an ideal situation. Select Medical Holdings has a low and conservative payout ratio of just 23% of its income after tax. A useful secondary check can be to evaluate whether Select Medical Holdings generated enough free cash flow to afford its dividend. It paid out 18% of its free cash flow as dividends last year, which is conservatively low.

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. If business enters a downturn and the dividend is cut, the company could see its value fall precipitously. For this reason, we're glad to see Select Medical Holdings's earnings per share have risen 15% per annum over the last five years. Earnings per share have been growing rapidly and the company is retaining a majority of its earnings within the business. Fast-growing businesses that are reinvesting heavily are enticing from a dividend perspective, especially since they can often increase the payout ratio later.

Select Medical Holdings also issued more than 5% of its market cap in new stock during the past year, which we feel is likely to hurt its dividend prospects in the long run. Trying to grow the dividend while issuing large amounts of new shares reminds us of the ancient Greek tale of Sisyphus - perpetually pushing a boulder uphill.

The main way most investors will assess a company's dividend prospects is by checking the historical rate of dividend growth. Since the start of our data, 10 years ago, Select Medical Holdings has lifted its dividend by approximately 2.3% a year on average. It's good to see both earnings and the dividend have improved - although the former has been rising much quicker than the latter, possibly due to the company reinvesting more of its profits in growth.

To Sum It Up

From a dividend perspective, should investors buy or avoid Select Medical Holdings? Select Medical Holdings has grown its earnings per share while simultaneously reinvesting in the business. Unfortunately it's cut the dividend at least once in the past 10 years, but the conservative payout ratio makes the current dividend look sustainable. Overall we think this is an attractive combination and worthy of further research.

While it's tempting to invest in Select Medical Holdings for the dividends alone, you should always be mindful of the risks involved. To help with this, we've discovered 1 warning sign for Select Medical Holdings 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.