What is EPS?
Earnings Per Share (EPS) measures how much net profit a company generates for each share outstanding. It is the fundamental building block for the P/E ratio — the most widely used stock valuation metric.
- EPS = Net Profit (PAT) / Total Shares Outstanding
Example: Reliance Industries has a net profit of ₹79,000 crore and 1,353 crore shares outstanding → EPS = ₹79,000 / 1,353 = ₹58.4 per share.
A higher EPS means the company is generating more profit per share — generally a positive indicator of financial health.
Basic EPS vs Diluted EPS
- Basic EPS: Uses the current shares outstanding. Simpler to calculate.
- Diluted EPS: Accounts for all potential shares that could be created from ESOPs (Employee Stock Options), convertible bonds, and warrants. Diluted EPS is always ≤ Basic EPS, because more shares mean less profit per share. Always use diluted EPS for a conservative valuation.
For companies with large ESOP programs (tech startups, new-age companies), the gap between basic and diluted EPS can be significant. Zomato, Paytm, and other new-age companies have large outstanding ESOPs that dilute per-share earnings.
Trailing EPS vs Forward EPS
- Trailing EPS (TTM): Based on the last 12 months of actual reported profits. Fact-based. Used to compute the trailing P/E ratio.
- Forward EPS: Analysts' consensus estimate of EPS for the next 12 months. Used to compute the forward P/E. More relevant for growth stocks but involves estimation risk.
When IPOpulse shows a P/E ratio, it is typically the trailing P/E (market price ÷ trailing 12-month EPS).
How EPS Drives P/E
P/E Ratio = Market Price / EPS. So:
- If a stock trades at ₹500 and EPS is ₹25, P/E = 20x
- If EPS grows from ₹25 to ₹35 but the stock stays at ₹500, P/E compresses to 14.3x — the stock appears cheaper without moving
- If EPS falls from ₹25 to ₹15, P/E expands to 33x — stock looks more expensive even though price didn't change
Strong EPS growth is what drives sustainable stock price appreciation over time. Companies that consistently grow EPS at 15–20% CAGR tend to be excellent long-term investments.
EPS Red Flags
- EPS boosted by exceptional items: If a company sold a factory or subsidiary, the one-time profit inflates EPS. Always check "adjusted EPS" excluding exceptionals.
- EPS growing but cash flow declining: EPS can be manipulated via aggressive revenue recognition. If operating cash flow doesn't match EPS growth, investigate the accounts.
- Negative EPS (losses): P/E ratio becomes meaningless. Use EV/Sales or Price/Book instead for loss-making companies.