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NAB share price: 2 approaches to start valuing it

Right now, you could probably use Google or another data provider to see the price of National Australia Bank Ltd (ASX: NAB) is around $28 per share. But what are NAB shares really worth?

Getting to an analyst price target is one of the more popular questions or topics our senior investment analysts get asked by Australian investors, especially those seeking dividend income. It’s not exclusive to National Australia Bank Ltd, of course.

Westpac Banking Corp (ASX: WBC) and ANZ Banking Group (ASX: ANZ) are also very popular stocks on the ASX.

Before we walk through two valuation models you might use to answer the question yourself, let’s consider why investors like bank shares in the first place.

Alongside the tech and industrial sectors, the financials/banking industry is a favourite for Australian investors. The largest banks, including Commonwealth Bank of Australia and National Australia Bank operate in an ‘oligopoly’.

And while large international banks, such as HSBC, have tried to encroach on our ‘Big Four’, the success of foreign competitors has been very limited. In Australia, ASX bank shares are particularly favoured by dividend investors looking for franking credits.

Reversing the PE ratio for valuations

The price-earnings ratio or ‘PER’ compares a company’s share price (P) to its most recent full-year earnings per share (E). Remember, ‘earnings’ is just another word for profit. Hence, the ‘P/E’ ratio is simply comparing share price to the most recent full-year profit of the company. Some experts will try to tell you that ‘the lower PE ratio is better’ because it means the share price is ‘low’ relative to the profits produced by the company. However, sometimes shares are good value for a reason!

Secondly, some extremely successful companies have gone for many years (a decade or more) and never reported an accounting profit — so the PE ratio wouldn’t have worked.

Therefore, we think it’s insightful to dig deeper than simply looking at the PE ratio and thinking to yourself ‘if it’s below 10x, I’ll buy it’.

One of the simple ratio models analysts use to value a bank share is to compare the PE ratio of the bank/share you’re looking at with its peer group or competitors and try to determine if the share is too much, or undervalued relative to the average. From there, and using the principle of mean reversion, we can multiply the profits/earnings per share by the sector average (E x sector PE) to reflect what an average company would be worth. It’s like saying, ‘if all of the other stocks are priced at ‘X’, this one should be too’.

If we take the NAB share price today ($28.2), together with the earnings (aka profits) per share data from its 2020 financial year ($0.805), we can calculate the company’s PE ratio to be 35x. That compares to the banking sector average PE of 24x.

Next, take the profits per share (EPS) ($0.805) and multiply it by the average PE ratio for NAB’s sector (Banking). This results in a ‘sector-adjusted’ PE valuation of $19.15.

The stockbroker’s first valuation tool: the dividend model

The dividend discount model or DDM is different from ratio valuation like PE because the model makes forecasts into the future, and uses dividends instead of profit. Because the banking sector has proven to be relatively stable with regards to share dividends, the DDM approach can be used. However, we would not use this model for, say, technology shares.

Basically, we need only one input into a DDM model: dividends per share. Then, we make some assumptions about the yearly improvement of the dividend (e.g. 2%) and the risk level of the dividend payment (e.g. 7%). We’ve used the most recent full year dividends (e.g. from last 12 months or LTM) then assumed the dividends remain consistent but grow slightly.

To make this DDM easy to understand, we will assume last year’s dividend payment ($0.60) rises at a consistent rate into the future at a fixed yearly rate.

Next, we pick the ‘risk’ rate or expected return rate. This is the rate at which we discount the future dividend payments back to today’s dollars. The higher the ‘risk’ rate, the lower the share price valuation.

We’ve used an average rate for dividend growth and a risk rate between 6% and 11%.

This simple DDM valuation of NAB shares is $11.44. However, using an ‘adjusted’ dividend payment of $1.23 per share, the valuation goes to $22.05. The expected dividend valuation compares to National Australia Bank Ltd’s share price of $28.20. Since the company’s dividends are fully franked, you might choose to make one further adjustment and do the valuation based on a ‘gross’ dividend payment. That is, the cash dividends plus the franking credits (available to eligible shareholders). Using the forecast gross dividend payment ($1.76), our valuation of the NAB share price forecast to $31.50.

Key summary

Please be mindful that these valuation methods are just the starting point of the research and valuation process. Please remember that. Banks are very complex companies and if the GFC of 2008/2009 taught investors anything, it’s that even the ‘best’ banks can go out of business and take shareholders down with them.

If you are looking at National Australia Bank Ltd shares and considering an investment, take your time to learn more about the bank’s growth strategy. For example, is it pursuing more lending (i.e. interest income) or more non-interest income (fees from financial advice, investment management, etc.)? Then, take a close look at economic indicators such as unemployment, house prices and consumer sentiment. Finally, it’s always crucial to make an assessment of the management team.

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