8. A day in the market – timings and orders
The Indian stock market is open Monday to Friday, except on exchange holidays. Here is what a normal day looks like on NSE’s equity market.
| Time (IST) | What happens |
|---|---|
| 9:00 – 9:15 am | Pre-open session. Orders are collected and an opening price is found through a short auction. |
| 9:15 am | Normal trading starts. Continuous buying and selling. |
| Around 3:15 – 3:30 pm | Closing phase. Since August 2026, many large stocks have a short closing auction that decides the closing price. |
| After the close | You can place "after-market orders" (AMO) that go to the exchange the next morning. |
Exchanges adjust these timings now and then. For example, NSE changed its pre-open and closing sessions in 2026. Always check the exchange website if exact timing matters to you.
8.1 Why is there a pre-open session?
Overnight, a lot can happen – global markets, company news, government decisions. If trading started directly at 9:15, the first few minutes would be chaos. So the exchange collects orders for a few minutes and finds one fair opening price where most buy and sell orders can match. Same idea for the closing auction: it finds a fair closing price.
8.2 The order book – where prices are born
Every share has an order book: a list of buyers and the price they are willing to pay (bids), and sellers and the price they want (asks). The gap between the best bid and the best ask is called the spread.
Try being the market yourself:
Did you see it? When a big buyer comes, they eat through the sellers at each price level and the price jumps. That is how prices really move.
8.3 Types of orders
1. Market order – "Buy now, at whatever the best price is." - Gets filled almost instantly. - But you do not control the price. In a fast-moving or thinly traded stock, you may pay more than you expected.
2. Limit order – "Buy only at ₹500 or lower." - You control the price. - But it may not get filled if the price never comes to your level.
3. Stop-loss order – "If price falls to ₹480, sell to limit my loss." - It sits quietly until the trigger price is hit, then becomes a market or limit order. - This is your seat belt. We will talk a lot about stop-losses in the technical modules.
Amit and Neha both want to buy a share trading near ₹500.
Amit places a market order and gets it at ₹500.40 instantly.
Neha places a limit order at ₹498. The price touches ₹498.50 but never ₹498. Her order is not filled, and the share goes up to ₹520.
Who was right? Neither, fully. Amit got certainty, Neha got price control. Choose based on what matters more for that trade.
8.4 Circuit limits – the speed breakers
To stop wild moves, exchanges set a price band for most stocks – often 2%, 5%, 10% or 20% from the previous close. The stock cannot trade beyond that band for the day. When a stock hits its upper limit, people say it is "in the upper circuit".
The whole market also has index circuit breakers. If the Nifty or Sensex falls 10%, 15% or 20% in a day, trading in the whole market pauses for some time. This gives everyone time to breathe and think.
Beginners love market orders because they are easy. Thoda dhyaan do: in small, illiquid stocks the spread can be big, and a market order can cost you a lot. Use limit orders when you are not in a hurry.
A limit order lets you set the maximum price you will pay. It fills only at ₹250 or better.
A stop-loss is a planned exit. It limits loss, but in a very fast market the actual price can be worse than the trigger.
Spread = best ask − best bid = ₹0.10. Tighter spreads mean a more liquid, easier-to-trade stock.
- Normal trading starts at 9:15 am after a pre-open auction. The closing phase decides the closing price. Check exact timings on the exchange website.
- The order book shows bids (buyers) and asks (sellers). Big orders move prices by eating through levels.
- Market order = speed. Limit order = price control. Stop-loss = planned exit.
- Price bands and index circuit breakers slow down extreme moves.
- Ek line mein: Jaldi ho toh market order, price chahiye toh limit order, aur har trade mein stop-loss ka plan pehle se rakho.