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How Does Aemetis Inc (AMTX) Affect Your Portfolio Returns?

Felix Olson

For Aemetis Inc’s (NASDAQ:AMTX) shareholders, and also potential investors in the stock, understanding how the stock’s risk and return characteristics can impact your portfolio is important. Broadly speaking, there are two types of risk you should consider when investing in stocks such as AMTX. The first risk to think about is company-specific, which can be diversified away by investing in other companies in order to lower your exposure to one particular stock. The second type is market risk, one that you cannot diversify away, since it arises from macroeconomic factors which directly affects all the stocks in the market.

Not all stocks are expose to the same level of market risk. A widely-used metric to measure a stock's market risk is beta, and the broad market index represents a beta value of one. A stock with a beta greater than one is expected to exhibit higher volatility resulting from market-wide shocks compared to one with a beta below one.

Check out our latest analysis for Aemetis

What does AMTX's beta value mean?

With a beta of 1.68, Aemetis is a stock that tends to experience more gains than the market during a growth phase and also a bigger reduction in value compared to the market during a broad downturn. Based on this beta value, AMTX can help magnify your portfolio return, especially if it is predominantly made up of low-beta stocks. If the market is going up, a higher exposure to the upside from a high-beta stock can push up your portfolio return.

NasdaqGM:AMTX Income Statement Sep 21st 17

Does AMTX's size and industry impact the expected beta?

With a market cap of USD $17.25M, AMTX falls within the small-cap spectrum of stocks, which are found to experience higher relative risk compared to larger companies. In addition to size, AMTX also operates in the energy industry, which has commonly demonstrated strong reactions to market-wide shocks. As a result, we should expect higher beta for small-cap stocks in a cyclical industry compared to larger stocks in a defensive industry. This is consistent with AMTX’s individual beta value we discussed above. Fundamental factors can also drive the cyclicality of the stock, which we will take a look at next.

How AMTX's assets could affect its beta

An asset-heavy company tends to have a higher beta because the risk associated with running fixed assets during a downturn is highly expensive. I test AMTX’s ratio of fixed assets to total assets in order to determine how high the risk is associated with this type of constraint. AMTX's fixed assets to total assets ratio of higher than 30% shows that the company uses up a big chunk of its capital on assets that are hard to scale up or down in short notice. As a result, this aspect of AMTX indicates a higher beta than a similar size company with a lower portion of fixed assets on their balance sheet. This is consistent with is current beta value which also indicates high volatility.

What this means for you:

Are you a shareholder? You may reap the gains of AMTX's returns in times of an economic boom. Though the business does have higher fixed cost than what is considered safe, during times of growth, consumer demand may be high enough to not warrant immediate concerns. However, during a downturn, a more defensive stock can cushion the impact of this risk.

Are you a potential investor? Before you buy AMTX, you should factor how your portfolio currently moves with the wider market, and where we are in the economic cycle. This stock could be an outperformer during times of growth, and it may be worth taking a deeper dive into the fundamentals to crystalize your thoughts on AMTX.

Beta is one aspect of your portfolio construction to consider when holding or entering into a stock. But it is certainly not the only factor. Take a look at our most recent infographic report on Aemetis for a more in-depth analysis of the stock to help you make a well-informed investment decision. But if you are not interested in Aemetis anymore, you can use our free platform to see my list of over 50 other stocks with a high growth potential.


To help readers see pass the short term volatility of the financial market, we aim to bring you a long-term focused research analysis purely driven by fundamental data. Note that our analysis does not factor in the latest price sensitive company announcements.

The author is an independent contributor and at the time of publication had no position in the stocks mentioned.