Start with what can go wrong

A setup can look attractive before you have decided what a loss would mean. That is the moment to slow down. Risk first means defining the conditions you can accept before the potential reward starts shaping your judgement.

Ask three questions: What invalidates the idea? What exposure am I considering? What will I do if the market behaves differently from my expectation? If any answer is unclear, the trade is not ready for your process.

You cannot control the next price move. You can prepare your order, understand the instrument and decide when to stay out. Those decisions do not guarantee protection, but they make your assumptions visible.

Position size changes the consequence

The same market move can have a very different effect depending on position size. Decide the planned monetary loss first, then check whether the size and exit assumptions fit that plan. Available margin is not the same thing as money you are prepared to lose.

Real calculations also depend on contract size, tick or pip value, account currency, spread, commission and execution. Check your broker’s specifications. For leveraged products, margin is only part of the picture.

A planned exit is not a guaranteed result

A stop order needs to be understood as an order mechanism, not a promise that the loss will match your calculation. In its guidance on stock stop orders, FINRA explains that the stop becomes a market order when triggered and may execute at a substantially different price in volatile conditions. A stop-limit order introduces a different trade-off: the order may not execute. Read FINRA’s explanation ↗

That guidance concerns stocks. For your own instrument, check how the broker handles triggers, gaps, liquidity and order execution. Avoid treating a planned loss as an absolute maximum unless the specific product and contractual terms actually provide that protection.

Look beyond a single position

Several open trades can depend on the same market idea. Three positions are not automatically three independent risks. Ask what would happen if the shared assumption failed at the same time.

Keep a simple exposure record: each position’s planned loss, the combined planned loss and any common drivers. These figures are planning estimates, not a worst-case guarantee. Consider how existing positions affect the room available for another decision.

Also write down when you will stop opening new trades: after a defined session limit, when your execution becomes inconsistent, or when you cannot assess the conditions. Stopping new entries does not mean abandoning the management of positions already open.