Risk management
Decide the worst case before you enter: a small share of your account, a stop, and a size to match.
Key ideas
- 1Many traders risk 0.5% to 2% of their account per trade. A run of ten losses then costs a tenth to a fifth of it, not all of it.
- 2Risk is what you lose if the stop is hit, not the size of the position or the margin.
- 3Compare what you could gain at your target with what you lose at your stop. A target twice as far as the stop is 2R.
- 4Losses compound against you: the deeper the drawdown, the harder the climb back.
Risk is what you lose at the stop
The size of a position and the margin behind it are not your risk. Your risk is what you lose if the stop loss is hit. Decide that first, as a small share of the account, and the rest follows.
- At risk
- $20
- Entry and stop
- 100,000 and 98,000 (−2%)
- Position size
- $913.24
- Margin at 5x
- $182.65
- Loss if the stop is hit
- −$20.00
A 2% stop on about $900 loses about $18; the fees in and out make up the rest of the $20.
Why small
Small, fixed risk is what lets an account survive the losing runs every trader has.
After losing 50%, what is left has to grow 100% just to get back to the start.
Ten losses in a row happen to almost every trader at some point. At 1% a trade you keep about 90% of the account; at 25% a trade, about 6%.
Reward against risk
Measure your target in units of your risk, called R. A stop $400 away and a target $1,000 away is 2.5R.
- You need to be right more than half the time, after fees, to come out ahead
- Right one time in three is about even, before fees
- More room for being wrong
A far target is reached less often, so this is a balance, not a trick. Fees and funding come off every trade either way.
Plan a trade
- At risk
- $20.00
- 1% of $2,000
- Position size
- $913.24
- Margin used
- $182.65
- At 5x
- Loss at the stop
- −$20.00
- Fees in and out at 0.095% each
A $913 position with its stop 2.0% away loses about $20.00 if the stop is hit. Change the leverage: the size and the loss stay the same, only the margin moves.
Watch what moves together
Common mistakes
- Risking more on trades that “feel certain”. The ones that feel certain lose too.
- Several positions that all move together, like longs on BTC, ETH and SOL. They can all hit their stops at once.
- No plan for a bad week. Decide in advance when you stop trading for the day.
Check yourself
Your account is $2,000 and you risk 1% per trade. What do you lose if the stop is hit?
Try it in Lance
Size by risk in the order panel and add a take profit: Lance shows the reward against the risk.
Plan a trade by risk