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Anyone researching GTN Limited (ASX:GTN) might want to consider the historical volatility of the share price. Volatility is considered to be a measure of risk in modern finance theory. Investors may think of volatility as falling into two main categories. The first category is company specific volatility. This can be dealt with by limiting your exposure to any particular stock. 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 see their prices move in concert with the market. Others tend towards stronger, gentler or unrelated price movements. Beta is a widely used metric to measure a stock's exposure to market risk (volatility). Before we go on, it's worth noting that Warren Buffett pointed out in his 2014 letter to shareholders that 'volatility is far from synonymous with risk.' Having said that, beta can still be rather useful. The first thing to understand about beta is that the beta of the overall market is one. Any stock with a beta of greater than one is considered more volatile than the market, while those with a beta below one are either less volatile or poorly correlated with the market.

View our latest analysis for GTN

What we can learn from GTN's beta value

Looking at the last five years, GTN has a beta of 1.25. The fact that this is well above 1 indicates that its share price movements have shown sensitivity to overall market volatility. Based on this history, investors should be aware that GTN 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 GTN is growing earnings and revenue. You can take a look for yourself, below.

Could GTN's size cause it to be more volatile?

GTN is a noticeably small company, with a market capitalisation of AU$293m. Most companies this size are not always actively traded. 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:

Since GTN has a reasonably high beta, it's worth considering why it is so heavily influenced by broader market sentiment. For example, it might be a high growth stock or have a lot of operating leverage in its business model. In order to fully understand whether GTN is a good investment for you, we also need to consider important company-specific fundamentals such as GTN’s financial health and performance track record. I urge you to continue your research by taking a look at the following:

1. Future Outlook: What are well-informed industry analysts predicting for GTN’s future growth? Take a look at our free research report of analyst consensus for GTN’s outlook.

2. Past Track Record: Has GTN 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 GTN's historicals for more clarity.

3. Other Interesting Stocks: It's worth checking to see how GTN 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.