📚 PASS Investment Adviser (Level 1) Difficulty: Intermediate ℹ️ Info   ~5 min read
📌 Chapter 8.5 — Equity research and stock selection

Imagine sitting at your desk at a Mumbai-based brokerage firm, analyzing two competitors in the fast-moving consumer goods (FMCG) space. One company trades at a P/E of 50, while its rival, seemingly similar in operations, trades at a P/E of 25. An entry-level analyst might hastily label the latter as ‘undervalued’ and recommend a ‘Buy’. However, a seasoned professional pauses to investigate the disparity.

A high P/E often signals that the market is pricing in superior growth prospects, higher margins, or a stronger brand moat, whereas a low P/E could just as easily reflect a company in a state of terminal decline or facing significant regulatory headwinds.

The Price-to-Earnings (P/E) ratio is essentially a reflection of market sentiment and expectations of future wealth generation. It answers the question of how much an investor is willing to pay for every rupee of earnings reported by the firm. When we interpret this ratio, we are looking for the ‘why’ behind the number.

If a software firm trades at a P/E of 60 while a public sector bank trades at 8, it is not because the bank is ‘cheap’ in a vacuum. It is because the market assigns lower multiples to industries with cyclical volatility, lower growth rates, or higher asset-heavy capital requirements.

To use P/E effectively, you must normalize for industry standards and growth trajectories. For example, comparing the P/E of a high-growth IT services firm to a traditional steel manufacturer is a fundamental error in judgment. The steel manufacturer operates in a commodity-driven environment where earnings are sensitive to global raw material prices and infrastructure cycles. Conversely, the IT firm operates on a recurring revenue model with higher scalability.

Analysts use relative valuation to see if a company is an outlier within its own peer group, which helps in identifying genuine anomalies.

Ultimately, the P/E ratio is a diagnostic tool, not a conclusion. A disciplined analyst uses it to spark further investigation into the company’s capital structure, earnings quality, and management strategy. If you find a stock with an unusually low P/E, do not assume it is a bargain; check if the earnings are sustainable or if the market is accurately pricing in a looming disruption.

By viewing the P/E as a gauge of market expectation rather than a measure of intrinsic worth, you avoid the trap of mistaking a value trap for an investment opportunity.


Nuance

⚠️ Nuance
A common professional misconception is that a low P/E always represents a bargain. Candidates often overlook that P/E ratios are distorted by ‘one-off’ accounting gains or losses that artificially inflate or deflate the denominator. Before concluding that a stock is cheap, a sharp analyst must verify the ’normalized’ earnings, stripping away exceptional items to determine if the valuation reflects the true operational reality of the business.

Check Your Understanding

Practice Question 1

An analyst is evaluating two companies in the same sector. Company X has a P/E of 40, and Company Y has a P/E of 15. Which of the following, if true, would most likely justify Company X’s higher multiple?

Practice Question 2

Which of the following scenarios best describes a potential ‘value trap’ regarding a stock’s P/E ratio?


This is a companion read for Section 8.5 — Equity research and stock selection from PASS Investment Adviser (Level 1) by Akhilesh Gururani, available on Amazon Kindle.

Copyright © 2026 HABSG Consulting