Should You Be Concerned About Sierra Wireless, Inc.'s (TSE:SW) Historical Volatility?

If you're interested in Sierra Wireless, Inc. (TSE:SW), then you might want to consider its beta (a measure of share price volatility) in order to understand how the stock could impact your portfolio. Volatility is considered to be a measure of risk in modern finance theory. Investors may think of volatility as falling into two main categories. First, we have company specific volatility, which is the price gyrations of an individual stock. Holding at least 8 stocks can reduce this kind of risk across a portfolio. The other type, which cannot be diversified away, is the volatility of the entire market. Every stock in the market is exposed to this volatility, which is linked to the fact that stocks prices are correlated in an efficient market.

Some stocks mimic the volatility of the market quite closely, while others demonstrate muted, exagerrated or uncorrelated price movements. Beta can be a useful tool to understand how much a stock is influenced by market risk (volatility). However, Warren Buffett said 'volatility is far from synonymous with risk' in his 2014 letter to investors. So, while useful, beta is not the only metric to consider. To use beta as an investor, you must first understand that the overall market has a beta of one. A stock with a beta below one is either less volatile than the market, or more volatile but not corellated with the overall market. In comparison a stock with a beta of over one tends to be move in a similar direction to the market in the long term, but with greater changes in price.

See our latest analysis for Sierra Wireless

What we can learn from SW's beta value

Given that it has a beta of 1.51, we can surmise that the Sierra Wireless share price has been fairly sensitive to market volatility (over the last 5 years). Based on this history, investors should be aware that Sierra Wireless are likely to rise strongly in times of greed, but sell off in times of fear. Beta is worth considering, but it's also important to consider whether Sierra Wireless is growing earnings and revenue. You can take a look for yourself, below.

How does SW's size impact its beta?

With a market capitalisation of CA$495m, Sierra Wireless is a very small company by global standards. It is quite likely to be unknown to most investors. Relatively few investors can influence the price of a smaller company, compared to a large company. This could explain the high beta value, in this case.

What this means for you:

Beta only tells us that the Sierra Wireless share price is sensitive to broader market movements. This could indicate that it is a high growth company, or is heavily influenced by sentiment because it is speculative. Alternatively, it could have operating leverage in its business model. Ultimately, beta is an interesting metric, but there's plenty more to learn. In order to fully understand whether SW is a good investment for you, we also need to consider important company-specific fundamentals such as Sierra Wireless’s financial health and performance track record. I highly recommend you dive deeper by considering the following:

1. Future Outlook: What are well-informed industry analysts predicting for SW’s future growth? Take a look at our free research report of analyst consensus for SW’s outlook.
2. Past Track Record: Has SW been consistently performing well irrespective of the ups and downs in the market? Go into more detail in the past performance analysis and take a look at the free visual representations of SW's historicals for more clarity.
3. Other Interesting Stocks: It's worth checking to see how SW measures up against other companies on valuation. You could start with this free list of prospective options.

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.