What is intraday trading, in one line? Opening and closing a position within the same trading session, rather than holding it as a longer-term investment. You buy and sell, or sell and buy, before the market shuts for the day. No overnight holding, ever. That compresses everything, deciding, executing, managing risk, into hours instead of weeks. And it exposes you to short-term price swings, real execution costs, and yes, the genuine possibility of losing money fast. Which is exactly why understanding the mechanics first, before any real money's involved, actually matters.
What is intraday trading?
Here's the core idea, stripped down. You buy shares in the morning. You sell them before that same session ends. Or you flip it, sell first, buy back later, still inside that one session. Either direction works the same way underneath. Nothing carries over to tomorrow. The position opens and closes inside a single trading day. Full stop.
Compare that to investing, where you might hold a stock for months, sometimes years, riding out whatever happens along the way. Intraday squeezes the entire decision into one session. You don't get days to reconsider here. You get hours. Sometimes just minutes.
Intraday trading versus delivery trading
Mix these two up, and it costs you money, genuinely. Delivery trading means your shares actually land in your demat account, and you can hold them as long as you like, a day, a year, a decade, doesn't matter. Intraday works through a completely different product, often labeled MIS or something similar depending on your broker, and it forces the position closed before the session ends. No exceptions.
| Intraday | Delivery | |
|---|---|---|
| Holding period | Same trading session only | Any length, no limit |
| Shares credited to demat | No | Yes |
| Margin typically required | Lower, higher leverage | Full value, or SEBI-mandated minimum |
| Position left open at close | Auto square-off by broker | Stays in your holdings |
Pick the wrong product for what you actually meant to do, say you wanted to hold a stock but accidentally bought delivery when you meant intraday, or the reverse, and you've created a mess that was entirely avoidable. Know exactly which one you're placing. Before you click buy, not after.
How does an intraday trade work in India?
Let's actually walk through one, start to finish, rather than just talking about it in the abstract.
A complete buy-to-sell example
Say you're watching a stock sitting around ₹500. You place a buy order for 20 shares through an intraday product, and it fills at ₹502. That's your entry. Position's open now, 20 shares, ₹502 average, and it has to close before the session ends, no choice about that part.
The stock does what stocks do, it moves. By early afternoon it's sitting at ₹512. You decide to book the gain, place a sell order for your 20 shares. It fills at ₹511, a touch below where you'd seen it, a small bit of slippage, completely ordinary. Position's closed. Gross gain comes to ₹9 a share, ₹180 total. Before costs.
That "before costs" part trips up more beginners than you'd think, and it gets the full treatment further down this page. What shows up on your screen as the gross number isn't what actually lands in your account at the end.
Orders, executions and square-off
A handful of mechanics worth knowing cold before you place anything live.
A market order fills immediately, at whatever the best available price happens to be. Fast, sure, but you don't control the exact number you get. A limit order only fills at your specified price or better, so you do control the price, though there's zero guarantee it fills at all, or fills completely. Partial fills happen constantly, actually, say you wanted 100 shares at ₹500 but the market only had 60 shares available at that exact price, you'd end up holding 60, and the leftover 40 just wouldn't execute unless price came back to your level. A stop-loss order triggers on its own once price hits a level you've set, built to cap a loss without you staring at the screen every single second.
Square-off is where most of the beginner confusion actually lives. Here's the thing: your broker sets its own cut-off time for auto-closing intraday positions, and that's often earlier than when the exchange itself actually closes. Miss that window, and whatever's still open gets closed automatically, at whatever price happens to be available right then, not necessarily one you'd have picked yourself. That broker deadline is not the same as NSE or BSE's actual closing time. Check your specific broker's square-off time directly. It varies, and it genuinely matters.
What do you need before starting?
Accounts, capital and platform requirements
A few things need to exist first. Genuinely, not optionally.
A trading account and a demat account, usually opened together through a SEBI-registered stockbroker. A funded account too, enough to cover your intended position plus whatever margin your broker demands for intraday products specifically. And a trading platform or app that shows actual live NSE and BSE data, not something delayed, because intraday calls made on stale prices are calls made on the wrong information entirely.
On capital, specifically: there's no single "right" number that fits everyone, and treat anyone claiming otherwise with real skepticism. What you actually need depends on the stock's price, how big a position you're taking, your broker's margin rules, and, more than any of that, how much you can genuinely stand to lose without it messing up your life. Could you technically start with ₹1,000 on some low-priced stock? Sure. But transaction costs then eat an outsized chunk of any gain, and one bad trade can wipe the account out entirely. Size matters less than discipline does. Still matters, though.
What are the costs and risks?
Brokerage, taxes, spread, slippage and leverage
Beginners skip this section constantly, and shouldn't, because it's exactly where expectation and reality part ways.
Start with brokerage. It gets charged per trade, flat fee or a percentage depending on your broker, and it hits both sides of an intraday trade, buy and sell, two separate charges for what's really just one round trip.
Then there's STT, the Securities Transaction Tax, and it behaves differently here than on delivery trades. For intraday equity, STT only applies on the sell side, and at a lower rate than delivery STT carries, which hits both sides. Worth getting this one exactly right, since it's probably the most commonly misunderstood cost on the whole list.
Spread matters too, quietly. That's the gap between the best buy price and the best sell price at any given moment, and it costs you on every single trade whether you notice it or not.
Slippage already showed up in the worked example above, remember the ₹512 you expected versus the ₹511 you actually got? That's slippage, plain and simple. Small on a calm day. Bigger, sometimes a lot bigger, when things are moving fast.
And then there's leverage, which cuts both ways harder than anything else on this list. Intraday products let you control a bigger position than your actual capital would normally support. That amplifies gains, genuinely, no argument there. It amplifies losses by the exact same multiple though, just as genuinely, and a leveraged loss can end up bigger than what the same unleveraged position in the same stock would've cost you.
SEBI's own research backs this up with real numbers, not vague warnings. A July 2024 SEBI study found that roughly seven out of ten individual intraday equity traders lost money over the period it covered. That's historical research describing a studied population, not a forecast for you specifically, but it's a genuinely sobering number worth sitting with before you risk anything real.
How should a beginner practise?
Paper trading and a first-trade checklist
Practice first. Capital second. That order, not the reverse.
Paper trading means placing simulated trades, with virtual money, against real, live market data. It lets you work through entries, exits, order types, and square-off timing with zero financial consequence attached to any of it. Honestly, it's the single most practical way to get genuinely comfortable with everything covered above, before any of it involves money you'd actually miss.
Before your first real, live trade, run through this. Do you actually know the difference between the intraday and delivery product on your specific broker's app? Have you checked your broker's exact square-off cut-off time, not assumed one? Do you know your real total cost, brokerage on both sides, STT, everything, not just the gross price move you're watching? Have you set your stop-loss level before entering, not scrambled to pick one after? And honestly, can you afford the loss if this particular trade goes against you? If you answered no to any of that, good, that's useful information. Not a reason to rush past it and trade anyway.
When might intraday trading be unsuitable?
Worth asking this honestly, rather than assuming it fits everyone who's curious about it. Can't actually monitor the market during trading hours? Intraday's fast pace doesn't suit checking in every now and then. Would covering a loss genuinely strain your finances? Both the leverage mechanics above and SEBI's own loss-rate research say the same thing, slow down. Drawn to it mainly because of fast-gain stories rather than real interest in the mechanics and risk management involved? Worth being honest with yourself about that before funding an account at all. None of this means intraday trading is wrong for everyone, it isn't. But it's not a fit for every circumstance either, and knowing which camp you actually fall into matters a lot more than enthusiasm does.
Glossary: Exchange rules, broker rules and trading terms
Worth keeping these three separate in your head, since mixing them up is where a lot of confusion starts.
Set by the exchange, NSE and BSE specifically: market trading session hours, the pre-open session for cash equities, STT rates, and the core definitions behind each order type.
Set by your broker instead: intraday product names like MIS, the actual square-off cut-off time, brokerage rates, and margin requirements for intraday positions. These vary broker to broker, so confirm them directly on your own platform rather than assuming.
General trading terminology, finally: words like slippage, spread, and leverage describe how markets behave broadly. They're not tied to one specific exchange rule or broker policy, they apply conceptually, across the whole market.
Reading about intraday mechanics gets you started. Actually watching them play out on a live, moving chart, with the real order types and square-off timing described above, is where it genuinely sinks in. Neostox's paper trading lets you practice entries, exits, and order management against live NSE and BSE conditions with virtual money, building real comfort with all of this before any of it touches capital that matters.