People often talk about EPS in the stock market. Some say that the higher, the better. Some use it to find standout stocks. But really, what is EPS, and what can it be used for? I’ve studied it and want to share a clear understanding with everyone.

First, EPS stands for Earnings Per Share. It is a financial indicator used to compare a company's net profit (after deducting expenses, interest, and taxes) with the number of outstanding shares. It’s important to understand what EPS really is — it’s not just looking at total profit, but dividing that profit into parts based on the number of shares.

The calculation formula is straightforward: EPS = Net Profit ÷ Number of Outstanding Shares. For example, Company A has a net profit of 1 million baht and 1,000 shares outstanding, so its EPS is 1,000 baht per share. Company B has the same profit but 2,000 shares, so its EPS is 500 baht per share. See? Even with the same profit, EPS differs because the number of shares is different.

Why do investors use EPS? First, it’s used for comparison — to see how much EPS a company has compared to others in the same industry or to its past data to observe trends. Second, analyzing consistent growth in EPS indicates the company is becoming more profitable. Third, it helps check where the EPS increase comes from — whether from actual profit growth or just a reduction in shares (buyback).

EPS is also used to calculate other indicators, such as the PE ratio, which is the stock price divided by EPS. A lower PE ratio is better, indicating the stock is undervalued. There’s also EPS Growth, which shows the percentage increase in EPS over a year, and the Dividend Payout Ratio, which shows what percentage of profit the company pays out as dividends.

However, be cautious because EPS has limitations. It doesn’t account for risk, nor can it predict future growth. Sometimes, a high EPS may result from buybacks rather than genuine profit increases. Therefore, EPS should not be used alone; it’s important to consider other indicators like net profit, market cap, ROI, and compare with peer companies.

In summary, EPS is a useful metric for stock analysis, but it must be used carefully. Don’t just buy because the number is high. Study it deeply, observe trends, investigate the reasons for changes, and compare with other relevant indicators to make effective and suitable investment decisions aligned with your goals.