How Does Mercantile Bank Corporation (NASDAQ:MBWM) Affect Your Portfolio Volatility?

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If you own shares in Mercantile Bank Corporation (NASDAQ:MBWM) 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 category is company specific volatility. This can be dealt with by limiting your exposure to any particular stock. 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. 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.

Check out our latest analysis for Mercantile Bank

What does MBWM's beta value mean to investors?

Looking at the last five years, Mercantile Bank has a beta of 0.81. 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 0.81. 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 Mercantile Bank's revenue and earnings in the image below.

NasdaqGS:MBWM Income Statement, August 22nd 2019
NasdaqGS:MBWM Income Statement, August 22nd 2019

How does MBWM's size impact its beta?

Mercantile Bank is a small company, but not tiny and little known. It has a market capitalisation of US$522m, which means it would be on the radar of intstitutional investors. 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:

One potential advantage of owning low beta stocks like Mercantile Bank is that your overall portfolio won't be too sensitive to overall market movements. However, this can be a blessing or a curse, depending on what's happening in the broader market. In order to fully understand whether MBWM is a good investment for you, we also need to consider important company-specific fundamentals such as Mercantile Bank’s financial health and performance track record. I highly recommend you dive deeper by considering the following:

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

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

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

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