Risk First: The Rule That Keeps You In The Game

Most new traders start with the question "what should I buy?" The better first question is "how much am I willing to lose if I'm wrong?" You can't control what the market does next. You can control how much of your account is exposed when it does.

The Math Of Getting Back To Even

Losses and gains are not symmetrical. If an account drops 10%, it needs an 11.1% gain to get back to where it started. A 25% drop needs 33.3%. A 50% drop needs 100%. The formula is simple: gain needed = loss ÷ (1 − loss).

That's why small losses are survivable and large ones are not. The deeper the hole, the harder the climb, and the more pressure you feel to take bigger, worse risks to get out of it.

Fixed-Percentage Risk

A common discipline is to risk a small, fixed slice of the account on each trade, often somewhere between 0.5% and 2%. "Risk" here means the amount you lose if your stop is hit, not the amount you spend on the position.

• On a $10,000 account, risking 1% means a planned loss of $100 on that trade.
• If the next trade loses too, the next 1% is calculated from the smaller balance, so risk shrinks automatically during a losing streak.
• When the account grows, the dollar risk grows with it.

There's no magic number. Pick one you could live with through ten losses in a row, because streaks happen even to traders with an edge.

Decide The Exit Before The Entry

A stop is the price where your idea is proven wrong. Choose it from the chart, at a level that would actually invalidate your reason for the trade, and then size the position so that hitting it costs you exactly your planned risk. Never pick the position size first and then squeeze the stop to fit it.

Stops are not guarantees. Prices can gap past a stop overnight or on news, and fast markets can fill you worse than planned. Treat your planned risk as a minimum, not a ceiling, and keep size small enough that a bad fill is an annoyance, not a disaster.

Your Assignment

Write down your risk-per-trade percentage and the dollar amount it equals today. Then open the Position Size Calculator in the toolkit and run your last three trade ideas through it. Most traders find at least one where they were carrying far more risk than they thought.