Why 9 of 10 Traders Lose Money: Common Intraday Mistakes Beginners Make
Part of Intraday Trading for Beginners (India): The Complete Guide
The number gets thrown around a lot: 9 out of 10 traders lose money. It comes from studies linked to SEBI looking at individual intraday and F&O traders in India, and the broad finding holds up year after year, most retail traders who trade intraday end up net negative, and a large share of them lose consistently, not just on a bad day.
It is tempting to read that stat and think the market is rigged, or that you need insider information, or that only full-time professionals can win. None of that is really true. Sit with enough loss-making trading accounts and you notice the same handful of mistakes showing up over and over. It is not bad luck. It is a short, repeatable list of errors that beginners make, and almost all of them are fixable before they cost real money, if you know to look for them.
Here are the mistakes that show up most often, what each one actually costs you, and how deliberately practicing on a paper trading platform, with real prices and real simulated costs, catches every one of them while the money is still fake.
1. No stop-loss, or moving it once the trade goes wrong
This is the single biggest account-killer. A trader enters a position without a stop-loss, or sets one and then cancels it the moment price moves against them, telling themselves it will "come back." Sometimes it does. Often it doesn't, and a small loss turns into a account-breaking one because there was never a hard exit.
On Tenth Trader, you can place SL and SL-M orders, and even bracket orders that attach a stop-loss and target the moment you enter. Practice placing the stop-loss every single time, and practice NOT touching it when the trade is red. Because the capital is virtual, you get to feel the discomfort of a stop-loss getting hit, and build the discipline to accept it, without an actual rupee lost. That rehearsal is what makes it possible to hold the line when real money is involved.
2. Overtrading and revenge trading after a loss
A loss stings, and the instinct is to immediately take another trade to "win it back." This usually means a rushed entry, no real setup, and bigger size than usual, which is the opposite of what should happen after a loss. Revenge trades lose more often than they win, precisely because they are driven by emotion, not a plan.
Paper trading lets you actually observe this pattern in your own behaviour. Take a loss, notice the urge to jump straight back in, and journal it instead of acting on it. Once you have watched revenge trading eat into virtual capital a few times, the pattern becomes obvious enough to catch in real time, before it does the same thing to real capital.
3. Position sizes too large for the capital
Risking 20-30% of your capital on one intraday trade is common among beginners, because a small account makes big position sizes feel necessary to make "meaningful" money. But this means two or three bad trades in a row can wipe out a big chunk of the account, and there is no room left to recover or learn.
With ₹1,00,000 in virtual capital on Tenth Trader, you can actually test what 1-2% risk per trade looks like in practice, see how many consecutive losses a sound risk model can absorb, and get comfortable with position sizes that don't put the whole account on the line every time. Getting this rule internalised before real money is on the table is far cheaper than learning it from an account that has already been cut in half.
4. Ignoring brokerage, STT, and other charges
A strategy that looks profitable on a spreadsheet of raw price moves can quietly be a loser once brokerage, STT, exchange charges, SEBI fee, GST, and stamp duty are all factored in. Intraday traders who take many small trades a day are especially exposed to this, because charges apply on every single trade, win or lose.
Tenth Trader models these costs to the rupee on every simulated trade, so your paper P&L already reflects what you would actually keep, not just the raw price difference. If a strategy only looks good before costs, that's worth knowing during the practice phase, not after a month of real trading that was unprofitable purely because of fees.
See what your typical trade really costs with the brokerage and charges calculator
5. Buying deep OTM options close to expiry because they're "cheap"
A deep out-of-the-money option priced at a few rupees feels like a lottery ticket, low cost, theoretically huge payoff. In practice, these options decay fast as expiry nears, and most of them expire worthless. Beginners get drawn in by the low price tag without appreciating how steep the odds are against them.
Tenth Trader's options and F&O section runs with simulated margins and Greeks, so you can actually watch how fast time decay eats a deep OTM option's value as expiry approaches, across real price action. Watching a string of these expire worthless in a paper account, without losing real premium each time, is a fast way to unlearn the "cheap option" instinct.
6. No trading plan or journal
Without a written plan and a journal, the same mistake can repeat for months without the trader ever noticing a pattern. Every loss gets explained away individually, bad luck, a news event, a fluke, when a journal would show it is actually the same setup or the same error each time.
Tenth Trader's trade journal exists for exactly this. Logging every paper trade, entry, exit, reason for the trade, and outcome, turns a vague feeling of "trading isn't working" into a specific, visible pattern you can actually correct.
7. Chasing tips and social media calls
Acting on a stock tip from a friend, a Telegram channel, or a finance influencer, with no independent view of why the trade should work, is common and costly. When the trade goes wrong, there is no thesis to fall back on, so there is no clear point to exit either, and the trader often just holds and hopes.
Use paper trading to build your own process instead, your own screener criteria, your own chart reading using tools like VWAP, RSI, MACD, and Bollinger Bands, your own reasons for entries and exits. If you want to test a tip, do it on paper first and journal whether your own analysis would have agreed with it. Over time this builds a thesis you can rely on instead of a call you cannot explain.
8. Trading every day out of habit, not setup
Many beginners trade daily because that is what feels like "being a trader," not because a genuine setup showed up that day. This leads to forced trades on days when the market simply isn't offering anything, which quietly bleeds capital through charges and small losses.
Paper trading removes the financial pressure to "do something" every day, which makes it a good place to practice sitting out. Track, in your journal, which days you traded because of a real setup versus which days you traded out of boredom, and compare the results. Most beginners are surprised how much better the setup-only days perform.
9. Never reviewing past trades
Even traders who do keep some record of their trades often never go back and review them. Without review, there is no way to know if losses are concentrated in one type of setup, one time of day, or one instrument, so the same avoidable mistake keeps recurring indefinitely.
Set a weekly habit of going through your Tenth Trader journal entries and looking for patterns, which setups actually made money after costs, which times of day were worst, which mistake from this list shows up most often in your own trades. This single habit, reviewing what you already have data on, is often the fastest way to improve.
The one habit that matters most
None of these nine mistakes require special talent to fix. They require seeing them happen to you, clearly enough to change the behaviour, ideally before real money is on the line. That is the entire point of practicing with live NSE prices and real simulated costs instead of jumping straight to a real trading account.
- Journal every single paper trade for 30 days, entry, exit, size, reason, and outcome.
- Review that journal once a week and look for the same mistake repeating.
- Only move to real money once your paper journal shows a plan you actually follow, not just one you wrote down.