How to decide which specific stock to buy, and when?

"A stock is not a lottery ticket. It's a piece of a business. So before you buy it, check if the business is actually healthy."

There are two schools of thought in stock analysis, and the wisest investors use both. Think of them as a doctor's toolkit: one tells you what the patient's overall health looks like, and the other tells you when the patient's vitals are at their best.

Fundamental Analysis is the art of looking inside a company's financials to answer one simple question: is this a genuinely good business?

You're looking at a handful of key indicators.

• Revenue growth tells you if the company is actually selling more year over year.
• Net Profit and Profit Margins tell you if it's keeping enough of what it earns.
• The P/E Ratio (Price-to-Earnings) tells you how much you're paying for every rupee of profit; a high P/E means the market expects big growth; a very high P/E with no growth is a red flag.
• Debt levels tell you if the company is borrowing dangerously.
• And Return on Equity (ROE) tells you how efficiently management is using investor money to generate profit.

You don't need to be a CA to read these numbers. Most broker platforms display them clearly.

The exercise is simply asking: does this company make real money, grow consistently, and manage its finances responsibly? If the answer is yes, you've found something worth owning.

Now comes the second question.

Technical Analysis is the study of price charts and trading patterns to determine when to enter or exit a stock. Even a fundamentally excellent company can be a poor buy if you enter at the absolute peak of its price cycle. Charts help you avoid that.

A few simple tools go a long way.

• Support levels are price points where a stock has historically stopped falling and bounced back; these are often sensible entry points.
• Moving Averages (like the 50-day or 200-day) smooth out daily noise and show you the stock's overall direction. When a stock's price crosses above its 200-day moving average, it's generally considered a bullish signal.

The golden rule is this:

use Fundamentals to pick the right stock, and Technicals to pick the right time. One without the other is incomplete.

Pro Tip: You don't need to master both disciplines in a week. Start with one fundamental metric; say, consistent profit growth over five years; and shortlist stocks that pass that single test. Then simply check if the stock is near a historical support level before buying. That two-step filter alone puts you ahead of most casual investors.

Knowing what and when to buy is powerful. But buying one great stock is not a portfolio; it's a bet.

In Article 2, we learn the art of building a balanced portfolio that doesn't crumble when one stock has a bad year.