In This Article:
If you own shares in Alta Zinc Limited (ASX:AZI) then it’s worth thinking about how it contributes to the volatility of your portfolio, overall. In finance, Beta is a measure of volatility. 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 mimic the volatility of the market quite closely, while others demonstrate muted, exagerrated or uncorrelated price movements. Beta is a widely used metric to measure a stock’s exposure to market risk (volatility). Before we go on, it’s worth noting that Warren Buffett pointed out in his 2014 letter to shareholders that ‘volatility is far from synonymous with risk.’ Having said that, beta can still be rather useful. The first thing to understand about beta is 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.
View our latest analysis for Alta Zinc
What we can learn from AZI’s beta value
With a beta of 1.06, (which is quite close to 1) the share price of Alta Zinc has historically been about as voltile as the broader market. Using history as a guide, we might surmise that the share price is likely to be influenced by market voltility going forward but it probably won’t be particularly sensitive to it. 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 Alta Zinc’s revenue and earnings in the image below.
How does AZI’s size impact its beta?
With a market capitalisation of AU$8.2m, Alta Zinc is a very small company by global standards. It is quite likely to be unknown to most investors. It doesn’t take much money to really move the share price of a company as small as this one. That makes it somewhat unusual that it has a beta value so close to the overall market.
What this means for you:
It is probable that there is a link between the share price of Alta Zinc and the broader market, since it has a beta value quite close to one. However, long term investors are generally well served by looking past market volatility and focussing on the underlying development of the business. If that’s your game, metrics such as revenue, earnings and cash flow will be more useful. In order to fully understand whether AZI is a good investment for you, we also need to consider important company-specific fundamentals such as Alta Zinc’s financial health and performance track record. I urge you to continue your research by taking a look at the following: