If you're interested in Aldeyra Therapeutics, Inc. (NASDAQ:ALDX), 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 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. 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 greater than one is more sensitive to broader market movements than a stock with a beta of less than one.
What ALDX's beta value tells investors
Looking at the last five years, Aldeyra Therapeutics has a beta of 0.88. The fact that this is well below 1 indicates that its share price movements haven't historically been very sensitive to overall market volatility. 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 Aldeyra Therapeutics's revenue and earnings in the image below.
Could ALDX's size cause it to be more volatile?
With a market capitalisation of US$156m, Aldeyra Therapeutics is a very small company by global standards. It is quite likely to be unknown to 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:
Since Aldeyra Therapeutics is not heavily influenced by market moves, its share price is probably far more dependend on company specific developments. It could pay to take a closer look at metrics such as revenue growth, earnings growth, and debt. This article aims to educate investors about beta values, but it's well worth looking at important company-specific fundamentals such as Aldeyra Therapeutics’s financial health and performance track record. I highly recommend you dive deeper by considering the following:
- Future Outlook: What are well-informed industry analysts predicting for ALDX’s future growth? Take a look at our free research report of analyst consensus for ALDX’s outlook.
- Past Track Record: Has ALDX 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 ALDX's historicals for more clarity.
- Other Interesting Stocks: It's worth checking to see how ALDX 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 firstname.lastname@example.org. 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.