A company reports ₹1,000 crore in net profit. Is that good? The answer depends entirely on how many shares divide that profit between owners. Earnings Per Share (EPS) makes the comparison possible.

EPS is net profit divided by the total number of outstanding shares. It converts the company's aggregate earnings into a per-share figure that investors can compare across companies, time periods, and prices.

The formula

EPS = Net Profit (after tax) / Weighted Average Shares Outstanding

"Weighted average" matters because share counts change during a year — through buybacks, new issuances, or ESOP conversions. Using a simple end-of-year count would distort the number; the weighted average reflects how many shares were actually outstanding across the full reporting period.

Example: Infosys reports ₹25,000 crore in net profit for FY25. With approximately 4,200 crore shares outstanding, that gives an EPS of roughly ₹59.5. Every share of Infosys earned ₹59.5 in FY25.

Basic vs diluted EPS

Diluted EPS is always equal to or lower than basic EPS. The gap between them tells you how much dilution shareholders face if all potential shares convert. A large gap (>10%) is a flag worth investigating.

Why EPS alone is incomplete

EPS answers "how much did the company earn per share." It does not answer "how much are those earnings worth."

That is where the Price-to-Earnings (P/E) ratio comes in: share price divided by EPS. Two companies with identical EPS can trade at very different P/E multiples depending on growth expectations, industry, and quality of earnings.

A company with ₹50 EPS trading at ₹500 has a P/E of 10×. A company with ₹50 EPS trading at ₹2,000 has a P/E of 40×. Same earnings, very different market verdict on the future.

What makes EPS growth meaningful

Year-over-year EPS growth is a common metric, but three adjustments sharpen it:

1. Strip out one-time items. A land sale, an insurance payout, or a write-off can swing EPS dramatically without reflecting operating reality. Compare adjusted EPS (or "core EPS") for a cleaner trend.

2. Watch dilution. A company growing EPS 10% while issuing 15% more shares each year is actually shrinking per-share value in real terms. Earnings growth that outpaces share count growth is the goal.

3. Reconcile with cash. High EPS built on aggressive accruals — booking revenue before cash arrives — is fragile. Companies with EPS growing faster than free cash flow per share deserve scrutiny.

A concrete read: two companies

Same profit, same P/E — but ten times fewer shares makes Company A's per-share economics look very different in an absolute sense. Neither is inherently better; what matters is whether that EPS is growing, sustainable, and fairly priced.

Where EPS shows up in practice

• Quarterly results — companies report basic and diluted EPS each quarter; analysts compare it to the "consensus estimate" (the average of analyst forecasts). A beat or miss relative to consensus often moves the share price more than the absolute EPS number.
• EPS guidance — management often gives EPS guidance for the next quarter or year, which the market uses to set expectations.
• Screeners — EPS growth over 3–5 years is a standard filter for identifying compounders.

Try this

Pull up any company you own or follow. Find its EPS for the last five fiscal years (the annual report or a screener like Screener.in for Indian companies). Then calculate: how fast has EPS grown per year (CAGR)? And has the share count stayed flat, risen, or fallen? That two-minute check will tell you whether shareholders have actually been getting richer — or just watching profits grow while dilution quietly erodes their slice.

JustJot.ai's research note feature lets you track EPS alongside your thesis so you can revisit whether earnings are compounding as you expected.