CBA shares: 2 reasons to buy, and 2 to sell

Is Australia's biggest bank the best opportunity?

Key points
  • CBA is a leading bank, with a valuation to match
  • It’s benefiting from higher interest rates and could keep paying good dividends
  • But, the share price is expensive and borrowers could struggle with higher interest rates

The Commonwealth Bank of Australia (ASX: CBA) share price is one of the most watched within the S&P/ASX 200 Index (ASX: XJO), being the biggest ASX bank share. But, with its large size, is the company a major opportunity?

There is plenty to look at in the banking sector at the moment. Ever since COVID-19 came onto the scene, banks have had to deal with significant changes to the financial situation.

Investors that have held CBA shares for decades have done very well, particularly with all of the dividend income that it has dished out.

But, with the CBA share price up more than 16% over the last six months, could the bank be a solid buy?

A woman in a bright yellow jumper looks happily at her yellow piggy bank.

Image source: Getty Images

Optimistic case for CBA shares

One of the key reasons why CBA shares could continue to do well from here is that interest rates are rising.

As a bank, the interest rate is a key part of its financials. It charges interest for customers and pays interest on a lot of the money that is held on deposit for customers.

CBA and many other ASX 200 bank shares are passing on the interest rate hikes to borrowers very quickly, while not passing on the overall increase to savers as quickly.

This is helping boost the CBA net interest margin (NIM) – it will be interesting to see how high CBA's NIM can go during this period. The higher NIM can boost bank earnings, and investors often like to use profit as a guide for their thoughts on the CBA share price (and many other share prices).

As I've already mentioned, the CBA dividend has been very rewarding for investors and this could continue.

The broker Credit Suisse suggests that CBA could pay an annual dividend yield of 5.8% in FY23 and 5.9% in FY24.

Reasons to avoid

CBA has done very well over the decades. But, investors are now pricing at an exceptionally high level compared to other ASX banks.

For example, on Credit Suisse's numbers, the CBA share price is valued at 17 times FY23's estimated earnings.

But, Credit Suisse numbers put the Australia and New Zealand Banking Group Ltd (ASX: ANZ) share price at under 10 times FY23's estimated earnings, the Westpac Banking Corp (ASX: WBC) share price at 12 times FY23's estimated earnings and the National Australia Bank Ltd (ASX: NAB) share price at 12 times FY23's estimated earnings.

While the higher valuation of CBA shares may not necessarily mean it's going to fall, it could be better value for investors to consider other ASX 200 bank shares.

I'm also keeping in mind that while the bank may earn higher margins in the short term, there's a danger that the higher loan rates could mean that arrears and bad debts could rise in 2023.

For these reasons, I think it could be better for investors to wait for a better valuation on CBA shares.

Motley Fool contributor Tristan Harrison has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has no position in any of the stocks mentioned. The Motley Fool Australia has recommended Westpac Banking. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Bank Shares

Man typing on his laptop with a coffee mug at the side.
Bank Shares

Should smart investors be buying NAB shares?

I dig deep to see whether the recent pullback has made this major bank worth buying.

Read more »

A young boy sits on top of a big rubber bouncing ball with handles as he smiles a toothless grin at the camera and bounces above the ground in a grassy field with a blue sky.
Bank Shares

ANZ shares rebound 12% from a 52-week low: Buy, hold, or sell?

ASX bank shares, including ANZ, have faced strong headwinds in 2026.

Read more »

Man holding Australian dollar notes, symbolising dividends.
Bank Shares

If I buy $6,000 of Westpac shares, how much dividend income will I receive in 2027?

Let’s look at the dividend outlook for Westpac shares…

Read more »

Bank building with the word bank in gold.
Bank Shares

If I invest $15,000 in NAB shares, how much passive income will I receive in 2027?

Is NAB a strong option for dividends?

Read more »

Happy young woman saving money in a piggy bank.
Bank Shares

How many CBA shares do I need to buy for $10,000 of passive income?

The banking giant is popular with income investors for a reasons.

Read more »

couple happily discussing their issues with a banker
Bank Shares

Bendigo and Adelaide Bank vs Bank of Queensland: Which is better value?

Comparing Bendigo and Adelaide Bank vs Bank of Queensland shares: which regional bank looks better value on recent fundamentals and…

Read more »

Four business people wearing formal business suits and ties walk abreast on a wide paved surface with their long shadows falling on the ground ahead of them.
Bank Shares

Westpac vs Macquarie Group: Which bank is better value now?

Westpac vs Macquarie Group: which bank share offers Aussies better value for October? Here’s how the heavyweights compare on dividends,…

Read more »

Australian dollar notes in businessman pocket suit, symbolising ex dividend day.
Bank Shares

If I invest $8,000 in CBA shares, what passive income could I earn in FY27 and FY28?

Brokers aren't too bullish about the outlook for the bank shares over the next 12 months, but its passive income…

Read more »