Stop Loss
Also called: stop, sl
An order that automatically closes your trade at a predetermined loss level — your first line of survival.
A trader who went long Swiss franc in Jan 2015 without a stop lost 100% of their account in 15 minutes. One who had a tight stop at 5% risk lost... 5%. Stops are the difference between a bad day and a career-ender.
Related terms
Take Profit
beginnerAn order that automatically closes your winning trade at a predetermined profit level — your exit plan in advance.
Trailing Stop
intermediateA stop loss that automatically moves in your favor as price moves — locks in profit while letting winners run.
Risk-Reward Ratio
beginnerThe ratio between how much you risk on a trade and how much you stand to make — the math that makes trading profitable.
Position Sizing
beginnerThe math that tells you how many lots to trade based on your account, stop distance, and risk tolerance.
Margin Level
intermediateThe ratio of your equity to your used margin, expressed as a percentage — the broker's measure of how close you are to a margin call.
Stop Out
intermediateThe automatic closing of your positions by the broker when your margin level drops too low — happens without warning.