Stop loss

A stop-loss is a conditional order that automatically closes your position when the price crosses a threshold in the losing direction. It exists to cut losses before they grow further, and to remove the temptation to hold a losing position out of conviction or hope. On Hex37 every order form includes a stop-loss field, and bracket orders attach a stop-loss to the entry so it activates automatically when the entry fills.

Why stop-losses matter

Most traders blow up not from being wrong, but from being wrong without a plan. A stop-loss converts a trade idea into a defined-risk bet: you can be wrong by exactly the planned amount, and no more. Without a stop, a losing position becomes an open-ended commitment to keep funding the loss. With a stop, you have a maximum loss in dollars, and every other position can be sized knowing what that loss is. This is the foundation of the 1% rule and of every risk-management framework in trading.

How stop-losses work at Hex37

When you place an order with a stop-loss attached, the stop sits as a conditional order on the exchange. It does not consume order book depth (it is not a resting limit order) but it does watch the price tape. When the trigger condition is met (mark price for futures, last price for spot, by default), the stop fires a market order to close. Hex37 applies the same slippage and partial-fill modelling on a stop-loss execution as it does on any market order, so the price you actually exit at is worse than the trigger price by a realistic amount.

Stop placement and position sizing

Most traders flip the order: they pick a position size first, then place a stop wherever the chart suggests. The correct order is the reverse. Decide your risk-per-trade in dollars (1% of account is the right default), pick a stop level based on the chart, then back-calculate the position size that loses exactly your risk budget at the stop. The Hex37 position sizer does this calculation for you when you enter the stop price and risk percent.

Common stop-loss mistakes

• Moving the stop further away when the trade goes against you. The plan was the plan for a reason.
• Placing the stop where it 'should' fire technically without confirming the position size is sized for that distance. Tight stops on big positions liquidate fast.
• Skipping the stop entirely on small positions because 'it is only X dollars'. Habits compound.
• Using mental stops instead of real stops. The whole point of a stop is to remove the decision from the moment of stress.
• Setting the stop at the exact chart level. Stops cluster at obvious levels and get hunted. Place the stop just past the level.