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If you own shares in Alkermes plc (NASDAQ:ALKS) 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. 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 second sort is caused by the natural volatility of markets, overall. For example, certain macroeconomic events will impact (virtually) all 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 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. 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 ALKS's beta value tells investors
Looking at the last five years, Alkermes has a beta of 1.83. The fact that this is well above 1 indicates that its share price movements have shown sensitivity to overall market volatility. If the past is any guide, we would expect that Alkermes shares will rise quicker than the markets in times of optimism, but fall faster in times of pessimism. Share price volatility is well worth considering, but most long term investors consider the history of revenue and earnings growth to be more important. Take a look at how Alkermes fares in that regard, below.
Does ALKS's size influence the expected beta?
Alkermes is a reasonably big company, with a market capitalisation of US$3.6b. Most companies this size are actively traded with decent volumes of shares changing hands each day. It takes deep pocketed investors to influence the share price of a large company, so it's a little unusual to see companies this size with high beta values. It may be that that this company is more heavily impacted by broader economic factors than most.
What this means for you:
Since Alkermes 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. This article aims to educate investors about beta values, but it's well worth looking at important company-specific fundamentals such as Alkermes’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 ALKS’s future growth? Take a look at our free research report of analyst consensus for ALKS’s outlook.
- Past Track Record: Has ALKS 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 ALKS's historicals for more clarity.
- Other Interesting Stocks: It's worth checking to see how ALKS 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 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.