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If you own shares in Lifestyle China Group Limited (HKG:2136) then it's worth thinking about how it contributes to the volatility of your portfolio, overall. In finance, Beta is a measure of volatility. 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 mimic the volatility of the market quite closely, while others demonstrate muted, exagerrated or uncorrelated 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.
See our latest analysis for Lifestyle China Group
What we can learn from 2136's beta value
Given that it has a beta of 0.89, we can surmise that the Lifestyle China Group share price has not been strongly impacted by broader market volatility (over the last 5 years). 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). Beta is worth considering, but it's also important to consider whether Lifestyle China Group is growing earnings and revenue. You can take a look for yourself, below.
Could 2136's size cause it to be more volatile?
Lifestyle China Group is a noticeably small company, with a market capitalisation of HK$3.9b. Most companies this size are not always actively traded. It is not unusual for very small companies to have a low beta value, especially if only low volumes of shares are traded. Even when they are traded more actively, the share price is often more susceptible to company specific developments than overall market volatility.