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# Does Qualstar Corporation's (NASDAQ:QBAK) P/E Ratio Signal A Buying Opportunity?

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This article is for investors who would like to improve their understanding of price to earnings ratios (P/E ratios). To keep it practical, we'll show how Qualstar Corporation's (NASDAQ:QBAK) P/E ratio could help you assess the value on offer. Qualstar has a P/E ratio of 7.52, based on the last twelve months. In other words, at today's prices, investors are paying \$7.52 for every \$1 in prior year profit.

### How Do You Calculate A P/E Ratio?

The formula for P/E is:

Price to Earnings Ratio = Share Price Ã· Earnings per Share (EPS)

Or for Qualstar:

P/E of 7.52 = \$5.5 Ã· \$0.73 (Based on the trailing twelve months to December 2018.)

### Is A High P/E Ratio Good?

A higher P/E ratio means that buyers have to pay a higher price for each \$1 the company has earned over the last year. That is not a good or a bad thing per se, but a high P/E does imply buyers are optimistic about the future.

### How Growth Rates Impact P/E Ratios

Earnings growth rates have a big influence on P/E ratios. When earnings grow, the 'E' increases, over time. That means unless the share price increases, the P/E will reduce in a few years. Then, a lower P/E should attract more buyers, pushing the share price up.

In the last year, Qualstar grew EPS like Taylor Swift grew her fan base back in 2010; the 134% gain was both fast and well deserved.

### Does Qualstar Have A Relatively High Or Low P/E For Its Industry?

We can get an indication of market expectations by looking at the P/E ratio. If you look at the image below, you can see Qualstar has a lower P/E than the average (17.8) in the tech industry classification.

This suggests that market participants think Qualstar will underperform other companies in its industry. Since the market seems unimpressed with Qualstar, it's quite possible it could surprise on the upside. If you consider the stock interesting, further research is recommended. For example, I often monitor director buying and selling.

### Don't Forget: The P/E Does Not Account For Debt or Bank Deposits

It's important to note that the P/E ratio considers the market capitalization, not the enterprise value. That means it doesn't take debt or cash into account. Theoretically, a business can improve its earnings (and produce a lower P/E in the future) by investing in growth. That means taking on debt (or spending its cash).

Such spending might be good or bad, overall, but the key point here is that you need to look at debt to understand the P/E ratio in context.

### Qualstar's Balance Sheet

Qualstar has net cash of US\$4.8m. This is fairly high at 44% of its market capitalization. That might mean balance sheet strength is important to the business, but should also help push the P/E a bit higher than it would otherwise be.

### The Bottom Line On Qualstar's P/E Ratio

Qualstar has a P/E of 7.5. That's below the average in the US market, which is 18.1. Not only should the net cash position reduce risk, but the recent growth has been impressive. The relatively low P/E ratio implies the market is pessimistic.

Investors should be looking to buy stocks that the market is wrong about. As value investor Benjamin Graham famously said, 'In the short run, the market is a voting machine but in the long run, it is a weighing machine.' We don't have analyst forecasts, but you might want to assess this data-rich visualization of earnings, revenue and cash flow.

You might be able to find a better buy than Qualstar. If you want a selection of possible winners, check out this free list of interesting companies that trade on a P/E below 20 (but have proven they can grow earnings).

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.