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If you're interested in AcelRx Pharmaceuticals, Inc. (NASDAQ:ACRX), 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. The first type is company specific volatility. Investors use diversification across uncorrelated stocks to reduce this kind of price volatility across the 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 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. 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.
What does ACRX's beta value mean to investors?
Zooming in on AcelRx Pharmaceuticals, we see it has a five year beta of 1.66. This is above 1, so historically its share price has been influenced by the broader volatility of the stock market. Based on this history, investors should be aware that AcelRx Pharmaceuticals are likely to rise strongly in times of greed, but sell off in times of fear. 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 AcelRx Pharmaceuticals fares in that regard, below.
Does ACRX's size influence the expected beta?
With a market capitalisation of US$121m, AcelRx Pharmaceuticals is a very small company by global standards. It is quite likely to be unknown to 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:
Since AcelRx Pharmaceuticals tends to move up when the market is going up, and down when it's going down, potential investors may wish to reflect on the overall market, when considering the stock. This article aims to educate investors about beta values, but it's well worth looking at important company-specific fundamentals such as AcelRx Pharmaceuticals’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 ACRX’s future growth? Take a look at our free research report of analyst consensus for ACRX’s outlook.
Past Track Record: Has ACRX 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 ACRX's historicals for more clarity.
Other Interesting Stocks: It's worth checking to see how ACRX measures up against other companies on valuation. You could start with this free list of prospective options.
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.
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