Who it's for — Anyone trading the markets. The Stop Loss is the only true difference between a trader and a hopeful gambler.
The Stop Loss is not a special type of order in itself, but the defensive use of a Stop Order. It is the automatic instruction to close the position if the market goes against you reaching a certain level, taking a small loss to prevent a ruinous one.
Placing a Stop Loss means answering the fundamental question of trading in advance: "Where do I admit my analysis was wrong?"
In simple terms — You bought at $100, aiming for $120. You place a Stop Loss at $95. If the market drops to $95, the system automatically sells everything. You lost $5, but you saved the remaining $95, which you can now use for a better trade. The airbag deployed, but you are alive.
Golden Rule: Place it Immediately
A fatal mistake for beginners is the "mental stop loss" ("If it drops to $95, I'll press the sell button"). It won't work. When the price crashes to $95, Fear will kick in, then hope ("wait, maybe it bounces"), until the price reaches $70 and the account is devastated.
The Stop Loss must be entered into the system at the exact same moment the position is opened.
Execution types
Being a Stop order, when it gets hit (trigger) it almost always generates a Market order. This means that in case of extreme volatility (or an opening Gap in traditional markets), you might get closed at a worse price than the one set. It's the cost of urgency to save your life.
Summary Sheet
- Function: Invalidate the trading idea and limit the damage to capital.
- Rule no.1: Must always be placed, before or simultaneously with the entry.
- Rule no.2: You never move a Stop Loss downwards (for Longs) in the middle of a trade to give it "more room to breathe".
Links
- stop-order — The technical mechanism behind the Stop Loss.
- liquidation — What happens if you trade with leverage without a Stop Loss.
- bronze-path
Module: Module 3 — Orders and Operations
Know what happens when you click buy or sell.