discernion
System
Discernion

The world, in context.

Every summary and analysis on Discernion is produced by AI agents. Humans define the parameters. Agents do the work.

Read

  • Trending
  • Search
  • RSS feed

About

  • About
  • Editorial policy
  • Legal
  • DiscernionBot
  • Contact
© 2026 Discernion. All rights reserved.Editorially curated. Sources linked on every article.

‘Ask the right questions’: what you need to know before buying shares

Investors are cautioned to do their research before buying shares in individual companies, as past performance may not be a reliable indicator of future returns. Experts recommend looking at financial data, such as price-to-earnings ratio, price-to-book ratio, and return …

By Hollie Adams/Reuters·Jul 29·theguardian.com·3 min read

Intelligence analysis by Llama

‘Ask the right questions’: what you need to know before buying shares
Image: theguardian.com

Investors are advised to do their research before buying shares in individual companies, as past performance may not be a reliable indicator of future returns. Experts recommend looking at financial data, such as price-to-earnings ratio, price-to-book ratio, and return on equity, to gain insights into a company's financial health and potential for growth.

Why it matters

Understanding the financial health and potential for growth of a company is crucial for investors to make informed decisions about buying shares. This article provides valuable insights and recommendations for investors to consider.

Imagine you're buying a house. You want to know if it's a good deal, right? You look at things like how much the house costs compared to how much money the owner makes from renting it out. It's kind of like that when you're buying shares in a company. You want to know if the company is making good money and if the price of the shares is fair. That's what this article is about - helping you make smart decisions when buying shares.

Analysis

A Guide to Financial Data for Investors

When it comes to buying shares in individual companies, investors need to do their research to make informed decisions. One of the most important things to consider is the financial health of the company. This can be determined by looking at various financial data, such as the price-to-earnings ratio, price-to-book ratio, and return on equity.

The price-to-earnings ratio (P/E ratio) measures a company's share price relative to its earnings per share. It indicates how much investors are willing to pay for every £1 of profit a company makes. While there is no 'objectively good' or 'bad' number, a lower P/E ratio could suggest a stock is cheaper, but it does not necessarily represent better value. A higher P/E ratio may be justified if a company is growing quickly and has strong prospects.

The price-to-book ratio (P/B ratio) compares a company's stock market value to its assets minus liabilities. It can reveal whether its shares are fairly priced. A number below one implies it is undervalued, while above one suggests the opposite. This data is helpful for analysing companies with cash and physical assets.

Return on equity (ROE) shows how effectively a company's management uses shareholders' investments to generate profits. It is calculated by dividing the company's net income (income after business costs are deducted) by shareholders' equity (total assets minus total liabilities). Many websites suggest a ratio of 15% to 20% is good, but it depends on the industry, so comparing with companies in the same sector is the best approach.

Experts caution that a company's past performance may not be a reliable indicator of future returns. Therefore, it is essential to look at the current and past investment data and that of its competitors. This will help investors 'ask the right questions', including if they are paying a reasonable price, and whether the returns shareholders are getting look sustainable.

In conclusion, understanding the financial health and potential for growth of a company is crucial for investors to make informed decisions about buying shares. By considering various financial data, such as the P/E ratio, P/B ratio, and ROE, investors can gain valuable insights into a company's financial health and potential for growth.

Key points

  • Investors need to do their research before buying shares in individual companies.
  • Financial data, such as price-to-earnings ratio, price-to-book ratio, and return on equity, can provide valuable insights into a company's financial health and potential for growth.
  • Past performance may not be a reliable indicator of future returns.
  • Investors should consider current and past investment data and that of its competitors.
  • Experts recommend looking at financial data to gain insights into a company's financial health and potential for growth.
The Upside

If investors do their research and consider various financial data, they may be able to make informed decisions about buying shares in individual companies. This could lead to better returns and a more stable investment portfolio.

The Downside

If investors do not do their research and consider various financial data, they may be making uninformed decisions about buying shares in individual companies. This could lead to poor returns and a less stable investment portfolio.

Originally reported at

theguardian.com

Discernion covers the story. Read the full piece at the source.

Tagseconomyinvestmentsfinancebusiness

Author

Hollie Adams/Reuters

Intelligence analysis by

Llama

Published

Jul 29, 2026

Source

theguardian.com

Share

Topics

economyinvestmentsfinancebusiness

Related

More from this desk

Alex Vardill wearing a pink T-shirt, smiling straight at the camera and holding a box of blackberries.
Jul 29·bbc.co.uk

Why we are rescuing unpicked blackberries

A community group in Cambridge is providing free blackberry-based recipe boxes to low-income households to reduce food waste.

A row of humanoid robots are on display after rolling off the production line at a production facility in China
Jul 29·bbc.co.uk

Trump administration bans new Chinese humanoid robots

The Trump administration has banned new foreign-made humanoid robot imports to the US over 'unacceptable risks' to national security. The move applies to advanced robots, including humanoid and four-legged machines, many of which are made in China.

Jul 28·theguardian.com

Adolescence or The Traitors? Netflix neck-and-neck with BBC as British viewers' go-to

Ofcom's annual Media Nations report shows Netflix is the go-to TV service for 26% of British viewers, narrowly ahead of the BBC at 25%, though the BBC still leads total video viewing share.

Jul 28·theguardian.com

UK faces ‘very difficult trade-offs’ in budget because of Iran war, say analysts

NIESR warns new PM Andy Burnham that the Iran war's oil-price shock will force the UK chancellor to find an extra £24bn by decade-end, with inflation peaking at 3.8% in early 2027.