Position Sizing: The 2% Rule That Keeps You in the Game
Most blow-ups are not bad calls — they are oversized ones. Here is the simple risk-per-trade math that lets a losing streak pass without wrecking your capital.
Why position sizing beats stock picking
A trader with a mediocre strategy and strict risk control will outlast a brilliant analyst who bets the farm on conviction. Survival is the edge. Position sizing decides how long you stay at the table.
The 2% rule, stated simply
Never risk more than 2% of your trading capital on a single idea. Risk is not the money you deploy — it is the distance from your entry to your stop-loss.
Worked example
On a Rs 5,00,000 account, 2% is Rs 10,000 of risk per trade. If you buy a stock at Rs 500 with a stop at Rs 480, your risk is Rs 20 per share. Rs 10,000 divided by Rs 20 gives 500 shares — regardless of how confident you feel.
What this protects you from
A run of five straight losses at 2% each draws your account down roughly 10%, not 50%. You live to trade the sixth setup, which is where the recovery usually comes from.
The discipline that makes it work
Set the stop before you enter, size from the stop, and never widen it once the trade is live. The rule only works if the stop is real.
Disclaimer: This article is for educational purposes only and is not investment advice or a recommendation to buy or sell any security. Investments in securities are subject to market risk; read all related documents carefully. RootNivesh is a SEBI Registered Research Analyst (Reg. No. INH000XXXXX).