Price-to-Earnings Ratio (P/E)
Price-to-Earnings Ratio (P/E)
A valuation metric calculated as current stock price divided by earnings per share (EPS). High P/E ratios may indicate growth expectations or overvaluation, while low P/E ratios may suggest undervaluation or investor concerns. Used to compare relative valuations across companies and sectors.
A stock trading at $80 per share with annual EPS of $4 has a P/E ratio of 20 ($80 รท $4). This means investors are willing to pay $20 for every $1 of annual earnings. Compared to a competitor with a P/E of 15, this stock has a higher valuation, possibly reflecting stronger growth expectations.
Students often confuse high P/E ratios as always "good" when they can indicate overvaluation. Additionally, trailing P/E (using past earnings) differs from forward P/E (using projected earnings), and negative earnings result in meaningless P/E calculations.
How This Is Tested
- Calculating P/E ratio given stock price and earnings per share
- Comparing P/E ratios across companies to identify relative valuation differences
- Interpreting whether a high P/E ratio indicates growth potential or overvaluation based on context
- Understanding the difference between trailing P/E and forward P/E ratios
- Recognizing when P/E ratios are not meaningful (negative earnings, cyclical industries)
Calculation Example
P/E Ratio = Stock Price รท Earnings Per Share (EPS) - Identify the current stock price: $60
- Identify the earnings per share: $3.00
- Divide stock price by EPS: $60 รท $3.00 = 20
Regulatory Limits
| Description | Limit | Notes |
|---|---|---|
| P/E Ratio Formula | Stock Price รท Earnings Per Share | Higher values indicate investors pay more per dollar of earnings |
Example Exam Questions
Test your understanding with these practice questions. Select an answer to see the explanation.
Jennifer, a value-focused investor, is comparing two technology stocks for her portfolio. Stock A trades at $120 with annual EPS of $8, while Stock B trades at $90 with annual EPS of $3. Both companies operate in the same sector with similar growth prospects. Jennifer wants to identify which stock has a more attractive valuation based on P/E ratios. Which statement is most accurate?
A is correct. Stock A has a P/E ratio of $120 รท $8 = 15, while Stock B has a P/E ratio of $90 รท $3 = 30. A lower P/E ratio (15 vs 30) indicates investors are paying less per dollar of earnings, suggesting Stock A is more attractively valued on a relative basis. For value investors like Jennifer, lower P/E ratios typically indicate better value, assuming similar growth prospects.
B is incorrect because Stock B's P/E of 30 is higher than Stock A's P/E of 15, making it less attractively valued (investors pay more per dollar of earnings). C is incorrect because absolute earnings ($8 vs $3) don't determine valuation attractiveness; the P/E ratio standardizes the comparison by relating price to earnings. D is incorrect because the absolute stock price ($90 vs $120) doesn't indicate valuation; a $10 stock with $0.25 EPS (P/E of 40) is more expensive on a relative basis than a $200 stock with $20 EPS (P/E of 10).
The Series 65 exam tests your ability to calculate and compare P/E ratios to assess relative valuations between securities. Understanding that lower P/E ratios generally indicate better value (for similar companies) is critical for making appropriate recommendations to value-oriented clients and distinguishing price from value.
The price-to-earnings (P/E) ratio is calculated by dividing which two values?
B is correct. The P/E ratio is calculated as Stock Price รท Earnings Per Share (EPS). This ratio shows how much investors are willing to pay for each dollar of company earnings.
A describes a calculation that would yield a similar result (since market cap = price ร shares and net income รท shares = EPS), but this is not the standard P/E formula and is less practical for individual stock analysis. C describes the price-to-book (P/B) ratio, which compares stock price to book value per share, not earnings. D describes the reciprocal of dividend yield (dividend yield = dividend รท price), which is a different valuation metric focusing on income rather than earnings.
The Series 65 exam frequently tests knowledge of fundamental analysis ratios and their components. Confusing P/E with other valuation metrics like price-to-book or dividend yield is a common error. Understanding that P/E specifically measures the price paid per dollar of earnings is essential for equity valuation.
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Access Free BetaA stock is currently trading at $75 per share. The company reported annual earnings of $4.50 per share. What is the stock's P/E ratio?
C is correct. Calculate: P/E Ratio = $75 รท $4.50 = 16.67, which rounds to 16.7. This means investors are paying approximately $16.70 for every $1 of annual earnings.
A (12.5) incorrectly calculates using $6 as EPS instead of $4.50, perhaps confusing the numbers. B (14.8) might result from an arithmetic error or using an incorrect EPS value. D (18.0) incorrectly uses $4.00 as EPS instead of $4.50, showing the importance of precise calculation ($75 รท $4.00 = 18.75, close to option D).
P/E ratio calculations are common on the Series 65 exam. The formula is straightforward (price รท EPS), but you must identify the correct values and perform accurate division. Understanding how to interpret the result (higher P/E means paying more per dollar of earnings) is equally important for analysis questions.
All of the following statements about the price-to-earnings (P/E) ratio are accurate EXCEPT
C is correct (the EXCEPT answer). A higher P/E ratio does NOT always indicate a better investment. In fact, value investors typically seek lower P/E ratios, as they indicate paying less per dollar of earnings. High P/E ratios can signal growth expectations (positive) or overvaluation (negative), depending on context.
A is accurate: High P/E ratios (typically above 20-25) can reflect investor optimism about future growth OR indicate the stock is overpriced relative to current earnings. Context matters. B is accurate: P/E ratios are most useful when comparing companies within the same industry or sector, as different industries have different typical P/E ranges (tech companies often have higher P/Es than utilities). D is accurate: When a company has negative earnings (losses), the P/E ratio calculation produces a negative number, which is not meaningful for valuation purposes. Analysts typically use "N/A" or alternative metrics for unprofitable companies.
The Series 65 exam tests your understanding of when and how to use P/E ratios appropriately. Recognizing that "higher is better" is a common misconception helps you avoid incorrect answers and make sound recommendations. Understanding the limitations of P/E ratios (negative earnings, cross-industry comparisons) is also critical for proper fundamental analysis.
An investment adviser is analyzing two stocks in the retail sector. Stock X trades at $50 with trailing twelve-month EPS of $2.50 and projected next-year EPS of $3.00. Stock Y trades at $80 with trailing EPS of $5.00 and projected EPS of $4.00. Which of the following statements are accurate?
1. Stock X has a trailing P/E ratio of 20
2. Stock Y has a forward P/E ratio of 20
3. Based on trailing P/E ratios, Stock Y appears more attractively valued
4. Based on forward P/E ratios, Stock X shows improving earnings expectations
D is correct. Statements 1, 2, and 4 are accurate.
Statement 1 is TRUE: Stock X trailing P/E = $50 รท $2.50 = 20.
Statement 2 is TRUE: Stock Y forward P/E = $80 รท $4.00 = 20.
Statement 3 is FALSE: Stock Y has a trailing P/E of $80 รท $5.00 = 16, compared to Stock X's trailing P/E of 20. The lower trailing P/E (16) means Stock Y appears MORE attractively valued than Stock X on a trailing basis, not less. This statement incorrectly suggests Stock Y is less attractive.
Statement 4 is TRUE: Stock X has improving earnings expectations. Its trailing EPS is $2.50 but projected EPS is $3.00, showing 20% earnings growth. This results in a forward P/E of $50 รท $3.00 = 16.7, down from the trailing P/E of 20. A declining P/E ratio (when price stays constant) indicates improving earnings, which is positive.
The Series 65 exam tests your ability to distinguish between trailing P/E (using historical earnings) and forward P/E (using projected earnings) while comparing valuations across multiple securities. Understanding that lower P/E ratios indicate better value and that improving earnings lead to declining P/E ratios (when price is constant) is essential for fundamental analysis and suitability recommendations.
๐ก Memory Aid
Think "P/E = Price of Earnings": How many dollars do you pay for each dollar the company earns? Formula: Stock Price รท EPS. Lower P/E = better value (like paying $10 for a $1 bill vs. $30 for a $1 bill). High P/E means growth hopes or overpaying.
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