In this short review, we’ll explain how simple it can be to provide a valuation of a bank share such as National Australia Bank Ltd (ASX:NAB). However, while it may seem ‘simple’ to create a valuation model of a company, no share valuation is gauranteed. If ‘value investing’ were as easy as what we’re about to show you, everyone would be a millionaire!
Our largest bank shares make up more than one-third of the local share market, measured by the market capitalisation of the largest 200 companies in the S&P/ASX 200 index.
If you really want to understand how to value a dividend share, like a bank or REIT, you should consider watching the tutorial video from the analyst team at Rask Australia.
You can subscribe to the Rask Australia YouTube channel and receive the latest (and free) value investing videos by clicking here.
Reversing the PE ratio for valuations
It’s likely that if you have been actively investing in shares for more than a few years you will have heard about the PE ratio. The price-earnings ratio or ‘PER’ compares a company’s share price (P) to its most recent full-year earnings per share (E). If you bought a coffee shop for $100,000 and it made $10,000 of profit last year, that’s a price-earnings ratio of 10x ($100,000 / $10,000). ‘Earnings’ is just another word for profit. So, the PE ratio is basically saying ‘price-to-yearly-profit multiple’.
The PE ratio is a very simple tool but it’s not perfect so it should only be used with other techniques (see below) to back it up. That said, one of the simple ratio strategies even professional analysts will use to value a share is to compare the company’s PE ratio with its competitors to try to determine if the share is overvalued or undervalued. It’s akin to saying: ‘if all of the other banking sector stocks are priced at a PE of X, this one should be too’. We’ll go one step further than that in this article. We’ll apply the principle of mean reversion and multiply the profits per share (E) by the sector average PE ratio (E x sector PE) to calculate what an average company would be worth.
If we take the NAB share price today, together with the earnings (aka profits) per share data from its 2020 financial year, we can calculate the company’s PE ratio to be 33.2x. That compares to the banking sector average PE of 25x.
We can take the profits per share (EPS) ($0.805) and multiply it by the average valuation for NAB. This results in a ‘sector-adjusted’ share valuation of $19.98.
The stockbroker’s first valuation tool: the dividend model
A dividend discount model or DDM is a much more robust way of valuing companies in the banking sector — if it’s done correctly (take your time!).
DDM valuation models are some of the oldest valuation models used on Wall Street and even here in Australia. A DDM model uses the most recent full year dividends (e.g. from last 12 months or LTM) or forecast dividends for next year and then assumes the dividends remain consistent or grow slightly for the forecast period (e.g. 5 years or forever).
Let’s assume last year’s dividend payments are consistent over time. Please note that using dividends paid last year is not always a good input to a DDM since the future is what we care about (note: we’ve made adjustments below to handle this).
To make the DDM easy to understand, wwe will assume the dividend payment grows at a consistent rate into the future (i.e. forever) at a fixed yearly rate.
Next, we have to pick a ‘risk’ rate or expected return rate to discount the future dividend payments back into 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 $1.12 per share, the valuation goes to $20.08. The valuation compares to National Australia Bank Ltd’s share price of $26.72.
Key summary
Our two models could be used a introductory guide as to how to the valuation process works. Analysing a bank share like National Australia Bank Ltd is a complicated task. If we were looking at the shares and considering an investment, we would first want to know more about the bank’s growth strategy. For example, are they pursuing more lending (i.e. interest income) or more non-interest income (fees from financial advice, investment management, etc..
Next, take a close look at economic indicators like unemployment, house prices and consumer sentiment. Where are they headed? Finally, we believe it’s important to make an assessment of the management team. For example, when we pulled data on NAB’s culture we found that it wasn’t a perfect 5/5. Culture is one thing to think carefully about.
