5 Financial Ratios Every Investor Should Know

5 Financial Ratios Every Investor Should Know

Updated on July 14, 2025

5 financial ratios that every investor should understand.

Price-to-Earnings (P/E)

  • What it is: The P/E ratio tells you how much you pay for every dollar that a company earns. For example, a P/E ratio of 15 means you’re paying $15 for every $1 of earnings.
  • Use: Can give a good first idea if a stock is currently cheap or expensive.
  • Keep in mind: It doesn’t consider future growth. Also, a lower P/E might be due to a decline in earnings. Always compare it with other companies in the same industry.

Debt-to-Equity (D/E)

  • What it is: The degree to which a company is financing its operations with debt rather than its own resources.
  • Use: Tells you if a company is using too much debt to run its business.
  • Keep in mind: A growing D/E might mean higher risk, especially if earnings start to fall. Also, it’s important to note that D/E ratios can vary by industry, which is why you should compare the company to its peers. Industries like utilities, consumer staples, and banking often have higher ratios.

Return on Equity

  • What it is: Measuring how good a company is at turning the money it gets from shareholders into profits. For instance, an ROE of 20% means the company makes $20 in profit for every $100 of investor money.
  • Use: Helps you see how effectively a company uses its money.
  • Keep in mind: This can be misleading if only looked at by itself without considering the company’s debt. When a company has a lot of debt, its ROE might look higher because it has less equity.

Current Ratio

  • What it is: It tells you if a company can pay off its debts due within a year using assets that it can quickly turn into cash. A current ratio of 1.5 means it can cover every $1 of debt with $1.50 in easily accessible assets.
  • Use: A quick check to see if a company has enough short-term assets to cover its short-term liabilities.
  • Keep in mind: It doesn’t show how quickly those assets can be turned into cash.

Price-to-Book (P/B)

  • What it is: This ratio compares the stock price to the book value per share. For example, a price-to-book (P/B) ratio of 1 means that the market capitalization equals the company’s tangible value.
  • Use: Good for finding out if a stock is a bargain compared to its actual tangible worth.
  • Keep in mind: Not very useful for companies with lots of intangible assets, like technology firms. It’s most useful for companies with physical assets, like real estate or manufacturing firms.

Remember: While these ratios can provide valuable insights, they also come with risks. It’s essential to look at them in the context of each industry’s standards. Numbers can be deceptive without context.

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Disclaimer
This article is intended for informational purposes only. It should not be considered financial advice, nor does it constitute a recommendation to buy or sell any securities. Our content does not account for your individual investment objectives or financial situation and may not reflect the most current market developments. This article was drafted with the assistance of AI, followed by thorough review and editing by our team to ensure accuracy and integrity.

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