If you own shares in The Weir Group PLC (LON:WEIR) then it's worth thinking about how it contributes to the volatility of your portfolio, overall. In finance, Beta is a measure of volatility. Modern finance theory considers volatility to be a measure of risk, and there are two main types of price volatility. The first type is company specific volatility. Investors use diversification across uncorrelated stocks to reduce this kind of price volatility across the portfolio. The second type is the broader market volatility, which you cannot diversify away, since it arises from macroeconomic factors which directly affects all the stocks on the market.
Some stocks see their prices move in concert with the market. Others tend towards stronger, gentler or unrelated 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.
What WEIR's beta value tells investors
As it happens, Weir Group has a five year beta of 1.08. This is fairly close to 1, so the stock has historically shown a somewhat similar level of volatility as the market. If the future looks like the past, we could therefore consider it likely that the stock price will experience share price volatility that is roughly similar to the overall market. Many would argue that beta is useful in position sizing, but fundamental metrics such as revenue and earnings are more important overall. You can see Weir Group's revenue and earnings in the image below.
Could WEIR's size cause it to be more volatile?
Weir Group is a fairly large company. It has a market capitalisation of UK£3.6b, which means it is probably on the radar of most investors. We shouldn't be surprised to see a large company like this with a beta value quite close to the market average. Large companies often move roughly in line with the market. In part, that's because there are fewer individual events that are signficant enough to markedly change the value of the stock (compared to small companies, at least).
What this means for you:
Weir Group has a beta value quite close to that of the overall market. That doesn't tell us much on its own, so it is probably worth considering whether the company is growing, if you're looking for stocks that will go up more than the overall market. In order to fully understand whether WEIR is a good investment for you, we also need to consider important company-specific fundamentals such as Weir Group’s financial health and performance track record. I urge you to continue your research by taking a look at the following:
- Future Outlook: What are well-informed industry analysts predicting for WEIR’s future growth? Take a look at our free research report of analyst consensus for WEIR’s outlook.
- Past Track Record: Has WEIR 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 WEIR's historicals for more clarity.
- Other Interesting Stocks: It's worth checking to see how WEIR measures up against other companies on valuation. You could start with this free list of prospective options.
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If you spot an error that warrants correction, please contact the editor at email@example.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.