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If you're interested in ASM Pacific Technology Limited (HKG:522), 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 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 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 ASM Pacific Technology

What does 522's beta value mean to investors?

Zooming in on ASM Pacific Technology, we see it has a five year beta of 1.11. 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 ASM Pacific Technology are likely to rise strongly in times of greed, but sell off in times of fear. 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 ASM Pacific Technology's revenue and earnings in the image below.

Could 522's size cause it to be more volatile?

ASM Pacific Technology is a fairly large company. It has a market capitalisation of HK$35b, which means it is probably on the radar of most investors. It has a relatively high beta, suggesting it may be somehow leveraged to macroeconomic conditions. For example, it might be a high growth stock with lots of investors trading the shares. It's notable when large companies to have high beta values, because it usually takes substantial capital flows to move their share prices.

What this means for you:

Since ASM Pacific Technology has a reasonably high beta, it's worth considering why it is so heavily influenced by broader market sentiment. For example, it might be a high growth stock or have a lot of operating leverage in its business model. This article aims to educate investors about beta values, but it's well worth looking at important company-specific fundamentals such as ASM Pacific Technology’s financial health and performance track record. I urge you to continue your research by taking a look at the following:

1. Future Outlook: What are well-informed industry analysts predicting for 522’s future growth? Take a look at our free research report of analyst consensus for 522’s outlook.

2. Past Track Record: Has 522 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 522's historicals for more clarity.

3. Other Interesting Stocks: It's worth checking to see how 522 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.