Western Digital Corporation's (NASDAQ:WDC) strong earnings report was rewarded with a positive stock price move. We have done some analysis, and we found several positive factors beyond the profit numbers.

In order to understand the potential for per share returns, it is essential to consider how much a company is diluting shareholders. Western Digital expanded the number of shares on issue by 6.7% over the last year. That means its earnings are split among a greater number of shares. To talk about net income, without noticing earnings per share, is to be distracted by the big numbers while ignoring the smaller numbers that talk to per share value. Check out Western Digital's historical EPS growth by clicking on this link.

How Is Dilution Impacting Western Digital's Earnings Per Share (EPS)?

We don't have any data on the company's profits from three years ago. And even focusing only on the last twelve months, we don't have a meaningful growth rate because it made a loss a year ago, too. What we do know is that while it's great to see a profit over the last twelve months, that profit would have been better, on a per share basis, if the company hadn't needed to issue shares. Therefore, the dilution is having a noteworthy influence on shareholder returns.

If Western Digital's EPS can grow over time then that drastically improves the chances of the share price moving in the same direction. But on the other hand, we'd be far less excited to learn profit (but not EPS) was improving. For that reason, you could say that EPS is more important that net income in the long run, assuming the goal is to assess whether a company's share price might grow.

That might leave you wondering what analysts are forecasting in terms of future profitability. Luckily, you can click here to see an interactive graph depicting future profitability, based on their estimates.

The Impact Of Unusual Items On Profit

On top of the dilution, we should also consider the US$543m impact of unusual items in the last year, which had the effect of suppressing profit. While deductions due to unusual items are disappointing in the first instance, there is a silver lining. When we analysed the vast majority of listed companies worldwide, we found that significant unusual items are often not repeated. And, after all, that's exactly what the accounting terminology implies. Assuming those unusual expenses don't come up again, we'd therefore expect Western Digital to produce a higher profit next year, all else being equal.

Our Take On Western Digital's Profit Performance

Western Digital suffered from unusual items which depressed its profit in its last report; if that is not repeated then profit should be higher, all else being equal. But unfortunately the dilution means that shareholders now own a smaller proportion of the company (assuming they maintained the same number of shares). That will weigh on earnings per share, even if it is not reflected in net income. Based on these factors, we think that Western Digital's profits are a reasonably conservative guide to its underlying profitability. If you want to do dive deeper into Western Digital, you'd also look into what risks it is currently facing. For example, Western Digital has 4 warning signs (and 1 which is a bit unpleasant) we think you should know about.

In this article we've looked at a number of factors that can impair the utility of profit numbers, as a guide to a business. But there is always more to discover if you are capable of focussing your mind on minutiae. Some people consider a high return on equity to be a good sign of a quality business. While it might take a little research on your behalf, you may find this free collection of companies boasting high return on equity, or this list of stocks with significant insider holdings to be useful.

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.