How to Buy & Sell Stocks (Broker + Demat Explained)

Lesson 7

Buying and selling stocks might seem complicated if you are new to investing, but the actual process is simple once you understand the key components involved. In this lesson, we will break down the step-by-step flow of how stock transactions work, what a broker does, and why a Demat account is essential.

1. What Is a Broker and Why Do You Need One?: A broker is a registered financial intermediary that allows you to buy or sell shares on the stock exchange. You cannot directly walk into a stock exchange and trade. Instead, all investors must use a broker’s platform.

Some examples of brokers include:

• Zerodha
• Angel One
• Upstox
• ICICI Direct
• Charles Schwab
• Robinhood

These brokers provide you:

• A trading platform or mobile app
• Market data and charts
• Order placement system
• Secure handling of your money
• Customer support
• Access to exchanges like NSE, BSE, NASDAQ, NYSE

Brokers earn money through brokerage fees, platform charges, or small transaction fees. In return, they allow you to access the entire stock market safely and conveniently.

2. What Is a Demat Account?: A Demat account (Dematerialized account) is where your shares are stored digitally. Before Demat accounts existed, shares were physical paper certificates. This caused issues like theft, damage, or forgery.

Now, everything is stored electronically. A Demat account works similar to a bank account:

• Bank account → stores money
• Demat account → stores shares

Whenever you buy shares, they are credited to your Demat account. Whenever you sell shares, they are debited from your Demat account.

Your Demat account is usually maintained with national depositories like:

• CDSL / NSDL in India
• DTCC in the USA
• CAS in Australia

These are highly secure government-regulated systems.

3. What Is a Trading Account?: A trading account is the bridge between your bank and your Demat account. You use your trading account to:

• Place Buy orders
• Place Sell orders
• Transfer money in/out

When you buy shares → Trading account executes the order → Shares go to Demat account.
When you sell shares → Shares from Demat are sold → Money goes to bank account.

You cannot trade with only a Demat account. You need both Demat + Trading accounts.

4. How Buying a Stock Works: Let’s walk through a simple example:

Step 1 — Add money

You transfer ₹5,000 from your bank to your trading account.

Step 2 — Choose a stock

You decide to buy 2 shares of Company XYZ at ₹1,000 each.

Step 3 — Place an order

You choose a Market Order (buy at the current price) or Limit Order (set your own price).

Step 4 — Order sent to exchange

The broker sends your order to the stock exchange.

Step 5 — Matching

The exchange matches your buy order with a seller.

Step 6 — Execution

Once matched, the order is executed.

Step 7 — Settlement

Within T+1 or T+2 days, the shares appear in your Demat account.

Buying a stock is like buying any item online — except your purchase represents ownership in a company.

5. How Selling a Stock Works: Selling follows the same steps in reverse:

1. You choose the number of shares to sell
2. You place a Sell order
3. Exchange finds a buyer
4. Shares are debited from your Demat account
5. Money is credited to your bank account

Selling is just like selling an old product online — once someone buys it, you receive money.

6. Why Brokers and Demat Accounts Are Important: Without brokers, you cannot access the stock exchange.

Without a Demat account, you cannot store shares safely.

These systems ensure:

• Transparency
• Safety
• Fast transactions
• Automatic records
• Government-regulated protection

Understanding this process removes fear and helps beginners invest confidently.

📝 Lesson 7 Quiz