Position sizing for a ₹50,000 account

Why position sizing matters more than your strategy

Here's an uncomfortable truth: a brilliant strategy with bad position sizing still blows up, while a modest strategy with good sizing survives. Sizing isn't the boring admin you do after the "real" work of finding setups. It is the real work, because it's the one variable that decides whether you're still in the market long enough to collect your edge.

And every honest edge needs collecting over time. A tested, profitable system still loses often — this approach won under half its trades across eight markets and made money anyway, because the winners were bigger than the losers. But that only works if a normal run of losers doesn't end you first. Position sizing is what keeps you in the game between the winners.

The 1–2% rule, in rupees

The rule is simple to state and hard to follow: risk no more than 1–2% of your capital on any single trade. On a ₹50,000 account, that's a maximum loss of roughly ₹500 to ₹1,000 per trade. Not "however much the trade moves against me" — a fixed line you decide before you enter, enforced by your stop, never by hope.

That number feels almost insultingly small when you're staring at a setup you're sure about. It's supposed to. The whole point of a small fixed risk is that no single trade — and no single bad call — can do real damage. You're trading to still be here next month, not to win big today.

How many lots should you trade?

As a starting frame, trade one lot of NIFTY call or put per ₹50,000 of capital. That keeps a single position's risk inside the 1–2% band for most setups, given a sensible stop. Your broker's exact margin requirement and the option's premium will fine-tune this, so treat it as a ceiling to respect, not a target to hit.

The dangerous moment comes after a couple of wins, when the account feels hot and two lots looks obvious. Resist it. Scale up only after roughly three months of consistency, not three good trades. Premature size is how accounts give back everything on the first losing streak after a hot run.

The math of surviving a losing streak

This is where the small number earns its keep. A run of six, eight, even ten losing trades in a row is not unusual for a system that wins under half its trades — it's expected. What matters is what that streak does to your account, and that depends entirely on how much you risked each time. Here's the same ten-loss streak at three different risk levels (illustrative, on a ₹50,000 account):

At 2% risk, ten losses in a row barely dents you — you're down 18% and very much still trading. At 10%, the same streak takes nearly two-thirds of your account, and now you need a 186% gain just to get back to even. The strategy didn't change between those rows. Only the size did. This is the entire reason the conservative number isn't optional.

You don't need to win often. You need to lose small enough, often enough, that you're still here when a big winner shows up.

Strikes and expiry that protect a small account

Sizing is the main lever, but a few execution choices keep the cost of being wrong small and predictable:

• Strike: at-the-money or one strike out-of-the-money. Far-OTM options are tempting because they're cheap, but their premiums die fast on small moves and they need an unrealistically large move just to pay. Cheap is not the same as good value.
• Expiry: current week only. Favour Tuesday and Wednesday entries, and skip the chaos of Thursday expiry day, when time decay and sharp swings are at their most brutal for buyers.
• Stop: the SuperTrend line, trailed. Set your stop to the trend line on the 3-minute chart and trail it upward as price moves your way — never move it against you to give a losing trade "room." The stop is what makes the 1–2% number real.

Adapt the numbers to yourself

Everything here is a starting framework drawn from backtested behaviour, not a personal recommendation. Your capital, your risk appetite, and your broker's margin requirements are unique to you, and none of this replaces a SEBI-registered adviser. But the principle underneath the numbers doesn't change: size for survival first, and the profit takes care of itself.