NSE and BSE explained: what they are and which one to use

NSE (National Stock Exchange) and BSE (Bombay Stock Exchange) are India's two main stock exchanges, the marketplaces where shares are actually bought and sold. Both are regulated by SEBI, and most large companies are listed on both, so for a beginner the choice rarely matters. NSE has higher trading volumes in most shares and is home to the Nifty 50; BSE is older, lists more companies and is home to the Sensex.

In the video, Vikas Panchal explains the three names together, SEBI, NSE and BSE, because you cannot understand one without the other two. This lesson follows his order.

What is a stock exchange?

A stock exchange is a regulated marketplace. Companies list their shares on it, and buyers and sellers meet there through brokers. The exchange runs the order book, matches trades, guarantees settlement through its clearing corporation and publishes prices.

You never deal with the exchange directly. Your broker is a member of the exchange, and your orders go through the broker's system to the exchange's system.

What is SEBI, and why does it matter?

Vikas uses a comparison every Indian understands. The RBI gives licences to banks and supervises them; every bank, from SBI to PNB, works under the RBI. In the same way, NSE and BSE work under SEBI.

SEBI, the Securities and Exchange Board of India, is the market regulator. It was set up in 1988 and got statutory powers under the SEBI Act in 1992. It authorises exchanges, registers brokers, sets the rules for listing companies, and acts against fraud and manipulation.

When a company wants to list its shares, it files its documents and meets SEBI's disclosure requirements. Only then does the exchange list the shares. Vikas puts it as: SEBI gives the exchanges the authority, and the exchanges list the shares.

For you as a beginner, SEBI matters in one practical way: only deal with SEBI-registered brokers. And know that META, like any education provider, is not a SEBI-registered investment adviser and does not give investment advice.

BSE and NSE: the two exchanges

BSE: the oldest exchange in Asia

The Bombay Stock Exchange was founded in 1875, which makes it the oldest stock exchange in Asia. It began as an association of brokers meeting under a banyan tree in Mumbai and later moved to Dalal Street. Its main index is the Sensex, a basket of 30 large companies.

BSE lists more companies than NSE, several thousand at the time of writing, because many small and older companies are listed only there. Check the BSE website for the current number.

NSE: the electronic exchange

The National Stock Exchange was incorporated in 1992 and began trading in 1994. It was built from the start as a fully electronic, screen-based exchange with a nationwide network, which was new for India at the time. Its main index is the Nifty 50, a basket of 50 large companies.

NSE lists fewer companies than BSE, but in most actively traded shares its volumes are much higher, and it dominates trading in index derivatives such as Nifty and Bank Nifty futures and options.

How did trading move from the trading ring to the screen?

In the video, Vikas describes the old system, and mentions the Harshad Mehta series that showed it on screen. Before computerisation, brokers gathered in the trading ring and called out prices: this stock is at Rs 500, who wants it? Deals were done by voice and settled on paper, which was slow and easy to abuse.

Through the 1990s, after the securities scam, the setting up of SEBI and the launch of NSE, the market moved to electronic screens. BSE moved to its own electronic system too. Today every order on both exchanges is matched by computer, settlement happens through depositories and clearing corporations, and the shares you buy sit in your demat account in electronic form.

NSE vs BSE: the differences that actually matter

Liquidity

Liquidity means how easily you can buy or sell without moving the price. In most large and mid-sized stocks, NSE has far more buyers and sellers active at any moment, so the spread between bid and ask is tighter. For a trader this is the biggest practical difference.

Derivatives

Nifty 50 and Bank Nifty futures and options, the contracts most retail traders use, trade on NSE. BSE has its own Sensex derivatives, which have grown, but NSE is where most of the volume is.

Number of listed companies

BSE lists many more companies, mostly smaller ones. If a small company is listed only on BSE, you can only buy it there.

Prices

For a stock listed on both, the price is almost always within a few paise on both exchanges, because arbitrage traders instantly buy on the cheaper one and sell on the dearer one. You do not get a bargain by choosing an exchange.

Indices

Sensex (BSE, 30 stocks) and Nifty 50 (NSE, 50 stocks) both track large-cap India and move together almost all the time. They are two thermometers for the same patient.

Which exchange should a beginner use?

When you place an order, your broker's app lets you choose NSE or BSE for a stock listed on both. In practice:

• For delivery buying of large companies, either works. Many brokers default to NSE.
• For intraday, prefer the exchange with more volume for that stock, which is usually NSE.
• For a stock listed only on one exchange, you have no choice.
• For futures and options on Nifty and Bank Nifty, it is NSE.

One rule from the video is worth keeping: before you trade any share, check where it is listed and how actively it trades there. Vikas points out that some low-priced "penny" shares hardly move and hardly trade, and beginners get stuck holding them because there is no buyer when they want to sell.

A worked example: buying SBI on NSE vs BSE

You want 10 shares of SBI. At the same moment:

• On NSE, the best ask is Rs 500.10 and the best bid is Rs 500.05.
• On BSE, the best ask is Rs 500.20 and the best bid is Rs 499.90.

Buying 10 shares on NSE costs Rs 5,001. On BSE it costs Rs 5,002. The difference is one rupee, less than the brokerage on either order. The real difference is the spread: 5 paise on NSE against 30 paise on BSE. If you had to sell immediately, NSE would cost you 50 paise on the round trip, BSE Rs 3. On 10 shares nobody cares. On 10,000 shares, or fifty trades a month, it adds up.

The shares themselves are identical. Once they are in your demat account, nobody can tell which exchange you bought them on, and you can sell them on either.

If you are still setting up, META's free course, Trading for Everybody, shows what the exchange selection looks like on a live order screen.

Common mistakes

• Thinking NSE and BSE sell different shares. For companies listed on both, it is the same share.
• Buying an illiquid BSE-only stock without checking daily volumes, then finding no buyer when you want out.
• Assuming a "SEBI-registered" label on a Telegram channel means SEBI has checked its tips. Verify registration on SEBI's website, and remember that registration is not a guarantee of results.
• Trying to profit from tiny NSE-BSE price differences. Professional arbitrageurs with faster systems have already done it.
• Confusing Sensex and Nifty as two separate markets. They are two indices of the same market.

Key takeaways

• SEBI regulates the market; NSE and BSE are the exchanges that run it, the way RBI regulates banks.
• BSE (1875) is Asia's oldest exchange and home to the Sensex; NSE (trading since 1994) is fully electronic and home to the Nifty 50.
• Most large companies are listed on both, with almost identical prices. NSE usually has more volume and tighter spreads.
• Index futures and options are mainly on NSE.
• Choose the exchange with better liquidity for your stock, and always check volume before buying a small company.