Margins matter. The more Aruba Networks (Nasdaq: ARUN) keeps of each buck it earns in revenue, the more money it has to invest in growth, fund new strategic plans, or (gasp!) distribute to shareholders. Healthy margins often separate pretenders from the best stocks in the market.  That's why we check up on margins at least once a quarter in this series. I'm looking for the absolute numbers, comparisons with sector peers and competitors, and any trend that may tell me how strong Aruba Networks' competitive position could be.

Here's the current margin snapshot for Aruba Networks and some of its sector and industry peers and direct competitors.

Company

TTM Gross Margin

TTM Operating Margin

TTM Net Margin

 Aruba Networks 69.1% (1%) 17.8%
 Motorola Solutions (NYSE: MSI) 50.3% 13.3% 15.3%
 Cisco Systems (Nasdaq: CSCO) 61.8% 20% 15%
 Riverbed Technology (Nasdaq: RVBD) 76.4% 13.8% 7.9%

Source: S&P Capital IQ. TTM = trailing 12 months.

Unfortunately, that table doesn't tell us much about where Aruba Networks has been, or where it's going. A company with rising gross and operating margins often fuels its growth by increasing demand for its products. If it sells more units while keeping costs in check, its profitability increases. Conversely, a company with gross margins that inch downward over time is often losing out to competition and possibly engaging in a race to the bottom on prices. If it can't make up for this problem by cutting costs -- and most companies can't -- then both the business and its shares face a decidedly bleak outlook.

Of course, over the short term, the kind of economic shocks we recently experienced can drastically affect a company's profitability. That's why I like to look at five fiscal years' worth of margins, along with the results for the trailing 12 months, the last fiscal year, and the last fiscal quarter. You can't always reach a hard conclusion about your company's health, but you can better understand what to expect and what to watch.

Here's the margin picture for Aruba Networks over the past few years.

Arun

Source: S&P Capital IQ. Dollar amounts in millions. FY = fiscal year. TTM = trailing 12 months.

Because of seasonality in some businesses, the numbers for the last period on the right -- the TTM figures -- aren't always comparable with the FY results preceding them. To compare quarterly margins with their prior-year levels, consult this chart.

Arun

Source: S&P Capital IQ. Dollar amounts in millions.

Here's how the stats break down:

  • Over the past five years, gross margin peaked at 69.1% and averaged 67.3%. Operating margin peaked at -1% and averaged -8.1%. Net margin peaked at 17.8% and averaged -7.1%.
  • TTM gross margin is 69.1%, 180 basis points better than the five-year average. TTM operating margin is -1%, 710 basis points better than the five-year average. TTM net margin is 17.8%, 2,490 basis points better than the five-year average.

With recent TTM operating margins exceeding historical averages, but still negative, Aruba Networks looks like it still has a lot of work to do.

If you take the time to read past the headlines and crack a filing now and then, you're probably ahead of 95% of the market's individual investors. To stay ahead, learn more about how I use analysis like this to help me uncover the best returns in the stock market.  Have an opinion on the margins at Aruba Networks? Let us know in the comments section below.

Seth Jayson had no position in any company mentioned here at the time of publication. You can view his stock holdings. He is the co-advisor of Motley Fool Hidden Gems, which provides new small-cap ideas every month, backed by a real-money portfolio. The Motley Fool owns shares of Cisco Systems. Motley Fool newsletter services have recommended buying shares of Cisco Systems and Riverbed Technology. Motley Fool newsletter services have recommended writing puts in Riverbed Technology. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.