Position sizing is the least glamorous part of trading and the part that decides whether you keep your funded account. Get it right and a losing streak is survivable. Get it wrong and one bad afternoon ends the whole thing.
Risk a small fixed percentage per trade
Pick a small, fixed slice of the account to risk on any single trade and stick to it. Something modest and consistent beats sizing by gut feel. The point isn't to win big on one trade - it's to make sure no single trade can hurt you badly enough to matter. Small and fixed keeps you in the game long enough for your edge to show up.
Size against your daily loss limit, not your whole account
Here's the move most people miss. Don't size per-trade risk as a fraction of the total account - size it as a fraction of your daily loss limit. That limit is the real ceiling on how much you can lose today, so it's the number your per-trade risk should respect. Risk a small piece of the daily limit per trade and you get several chances to be wrong before you're near locked out. Risk a big chunk and two bad trades end your day.
Why this bites harder on tighter accounts
On a small or tightly-limited account, the daily loss limit is close. There's not much room between a 'normal losing trade' and 'account locked'. That's exactly when disciplined sizing matters most - the accounts with the least margin for error are the ones where oversizing does the most damage. Bigger accounts forgive a sloppy size. Tight ones don't.
Do the math before the session, not during
Work out your per-trade size when you're calm and staring at the numbers, not when a trade is moving against you. Know your daily limit, decide what fraction of it a single trade can risk, and turn that into a contract count and a stop distance ahead of time. In the moment, you just follow the plan. Sizing decisions made mid-trade are almost always too big.
Good sizing keeps you away from the daily loss limit. Qloner is the backstop for the times it isn't enough - set your daily loss limit per account and it enforces the line in real time, flattening and locking before a mis-sized trade turns into a mis-sized day. Sizing is your job; the hard stop is Qloner's.
Why the Sizing Fraction Matters
| Risk per trade (fraction of daily loss limit) | On a $500 daily loss limit | Bad trades before the day is done |
|---|---|---|
| 10% per trade | $50 at risk per trade | ~10 trades |
| 25% per trade | $125 at risk per trade | 4 trades |
| 50% per trade | $250 at risk per trade | 2 trades |
Illustrative example - the article deliberately does not prescribe one specific percentage.
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