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Does Market Volatility Impact American Shared Hospital Services's (NYSEMKT:AMS) Share Price?

Simply Wall St

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If you're interested in American Shared Hospital Services (NYSEMKT:AMS), 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. Some investors use beta as a measure of how much a certain stock is impacted by market risk (volatility). While we should keep in mind that Warren Buffett has cautioned that 'Volatility is far from synonymous with risk', beta is still a useful factor to consider. To make good use of it you must first know 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.

See our latest analysis for American Shared Hospital Services

What AMS's beta value tells investors

Zooming in on American Shared Hospital Services, we see it has a five year beta of 0.81. This is below 1, so historically its share price has been rather independent from the market. This means that -- if history is a guide -- buying the stock would reduce the impact of overall market volatility in many portfolios (depending on the beta of the portfolio, of course). 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 American Shared Hospital Services's revenue and earnings in the image below.

AMEX:AMS Income Statement, June 6th 2019

Does AMS's size influence the expected beta?

American Shared Hospital Services is a rather small company. It has a market capitalisation of US$16m, which means it is probably under the radar of most investors. Very small companies often have a low beta value because their share prices are not well correlated with market volatility. This could be because the price is reacting to company specific events. Alternatively, the shares may not be actively traded.

What this means for you:

One potential advantage of owning low beta stocks like American Shared Hospital Services is that your overall portfolio won't be too sensitive to overall market movements. However, this can be a blessing or a curse, depending on what's happening in the broader market. This article aims to educate investors about beta values, but it's well worth looking at important company-specific fundamentals such as American Shared Hospital Services’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 AMS’s future growth? Take a look at our free research report of analyst consensus for AMS’s outlook.
  2. Past Track Record: Has AMS 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 AMS's historicals for more clarity.
  3. Other Interesting Stocks: It's worth checking to see how AMS 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.