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One Thing To Remember About The ARCA biopharma, Inc. (NASDAQ:ABIO) Share Price

Simply Wall St

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If you're interested in ARCA biopharma, Inc. (NASDAQ:ABIO), 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. Modern finance theory considers volatility to be a measure of risk, and there are two main types of price volatility. 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 are more sensitive to general market forces than others. 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.

Check out our latest analysis for ARCA biopharma

What does ABIO's beta value mean to investors?

Looking at the last five years, ARCA biopharma has a beta of 1.93. 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 ARCA biopharma 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 ARCA biopharma fares in that regard, below.

NasdaqCM:ABIO Income Statement, June 4th 2019

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

ARCA biopharma is a rather small company. It has a market capitalisation of US$10m, which means it is probably under the radar of 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 ARCA biopharma 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 ABIO is a good investment for you, we also need to consider important company-specific fundamentals such as ARCA biopharma’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 ABIO’s future growth? Take a look at our free research report of analyst consensus for ABIO’s outlook.
  2. Past Track Record: Has ABIO 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 ABIO's historicals for more clarity.
  3. Other Interesting Stocks: It's worth checking to see how ABIO 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.