Compare ASX shares by first deciding whether you want income, capital growth or both, then assess valuation, earnings trends and dividends using consistent periods and definitions. A low price-to-earnings ratio, fast earnings-per-share growth or high dividend yield is a clue to investigate—not a verdict that a share is cheap, growing sustainably or safe.
Start with what you want the share to do
Two companies can look very different because they serve different purposes. Before comparing numbers, decide whether you are seeking income, capital growth or a blend, and consider your time horizon, tolerance for losses and the role the share would play in your broader portfolio.
That decision affects how you interpret the evidence. A company that retains earnings to reinvest may suit a growth-oriented comparison better than an income-focused one; a company paying dividends may still have limited growth prospects or face pressure on future distributions. Neither approach is inherently superior.
Use like-for-like information
Choose companies with business models and reporting periods that make comparison meaningful. Sector peers are generally a more useful valuation reference than unrelated businesses, while differences in accounting periods or definitions can make even similar-looking figures misleading.
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For each company, record the share-price date, the financial reporting period, and the definitions behind the figures. Prefer dated company reports and company information pages. ASX identifies annual reports and company pages as sources for fundamentals, and advises investors to consider a company’s growth, profits, sustainability, risks and debt: ASX shares education.
Compare valuation with the P/E ratio
The price-to-earnings (P/E) ratio relates a company’s share price to its earnings per share (EPS). It frames how much investors are paying for a unit of reported earnings. It does not establish by itself whether a share is cheap or expensive.
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Check which earnings period is used and whether earnings include unusual or non-recurring items. A P/E based on one period should not be compared casually with a figure based on a different period or earnings definition. If earnings are negative, a simple P/E may not provide a useful comparison.
Compare the result with relevant companies in the same sector and with the broader market where appropriate. A higher multiple can reflect investor expectations about future prospects, but those expectations may not be met. A lower multiple can warrant investigation into risks, weaker outlook or unusual earnings just as much as it can suggest a lower price relative to earnings. ASX’s educational guidance recommends putting P/E in context rather than treating it as a standalone signal: ASX shares education.
Test whether earnings growth is durable
EPS is profit allocated per ordinary share. Compare several reporting periods rather than relying on a single year’s change, and examine both the underlying profit figure and the number of shares on issue.
- Look for ordinary operating growth. Check whether profit growth came from the company’s normal business or from a one-off gain.
- Check the share count. Changes in shares on issue can affect EPS; investigate dilution or other share-count movements before interpreting the trend.
- Read the reporting context. Consider the company’s own forward-looking disclosures, but distinguish them from historical results. Past growth does not guarantee future growth.
ASX cautions that EPS can be difficult to interpret alone when earnings include non-recurring items or the share count changes. Its educational material also outlines the use and limits of company financial information: ASX shares education and ASX guide to investing in shares.
Read dividend yield alongside the payout
Dividend yield expresses dividend income relative to the share price. Because the price is in the calculation, a falling price can mechanically lift a displayed yield; the higher figure does not necessarily mean the company has become more generous or that the payment is secure.
Compare dividend per share over time and assess the earnings available to support distributions. Then consider the company’s cash generation, debt and need to reinvest. A company may choose to retain earnings for its business, and ASX notes that companies are not required to pay a dividend from earnings. A past or recent payment is not a promise of another one; special dividends may also arise from particular events. See ASX information about dividends.
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Franking credits may be relevant for eligible investors, but their tax effect depends on personal circumstances. Do not treat a dividend yield as a universal after-tax return.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Check the business and its risks
Ratios can help organise a comparison, but they cannot establish business quality on their own. Review the financial statements and company disclosures for debt, cash generation, stated risks and the sustainability of profits and distributions. A high yield or rapid EPS increase needs this context before it can inform a decision.
Company information may be imperfect, and some information may already be reflected in the share price. ASX also cautions that shares carry risk and points investors toward considering independent professional advice for their circumstances: ASX guide to investing in shares.
A practical comparison workflow
- Define the purpose: note whether you seek income, growth or a blend, along with your time horizon, risk tolerance and the share’s intended portfolio role.
- Select meaningful peers: choose companies with comparable business models and reporting periods; use sector peers for valuation context.
- Gather dated information: use company reports and reliable company information pages. Record the share-price date, report period and metric definitions.
- Compare P/E carefully: use a consistent earnings basis and investigate unusual, non-recurring or negative earnings before drawing conclusions.
- Trace earnings and dividends: review several years of EPS, profit and dividend per share, checking one-off items and changes in shares on issue.
- Assess resilience: examine debt, cash generation, reinvestment needs and stated risks before treating growth or yield as sustainable.
- Write down the trade-offs: state what supports each interpretation and what could invalidate it. A useful comparison explains uncertainty rather than reducing it to a single score.
Keep the comparison in perspective
This framework is for education, not a ranking of current ASX securities or personal financial advice. Prices, company results, forecasts, dividend announcements and tax treatment can change, so use current primary company disclosures for any live comparison and check that each ratio uses a like-for-like period and definition.
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