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Anyone researching Singapore Post Limited (SGX:S08) might want to consider the historical volatility of the share price. 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 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.
See our latest analysis for Singapore Post
What S08's beta value tells investors
Looking at the last five years, Singapore Post has a beta of 0.84. 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 suggests that including it in your portfolio will reduce volatility arising from broader market movements, assuming your portfolio's weighted average beta is higher than 0.84. Share price volatility is well worth considering, but most long term investors consider the history of revenue and earnings growth to be more important. Take a look at how Singapore Post fares in that regard, below.
How does S08's size impact its beta?
Singapore Post is a small cap stock with a market capitalisation of S$2.2b. Most companies this size are actively traded. Small cap stocks ofthen have a higher beta than the overall market. However, small companies can also be strongly impacted by company specific developments, which can move the share price in ways that are unrelated to the broader market. That could explain why this one has a low beta value.
What this means for you:
Since Singapore Post 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. In order to fully understand whether S08 is a good investment for you, we also need to consider important company-specific fundamentals such as Singapore Post’s financial health and performance track record. I highly recommend you dive deeper by considering the following: