A take-profit closes your position at a gain level you choose, and a stop-loss at a loss level. For a long, the take-profit sits above the entry and the stop-loss below; for a short, the other way round. A 10x BTC long from 60,000 could use 61,800 and 59,400. On Cryptathon each exit fires on the mark price.
By the end, you can
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Where do take-profit and stop-loss go?
A take-profit sends a market exit when the price reaches a gain you chose, and a stop-loss sends one when the price reaches a loss you chose. On Cryptathon, each exit is a reduce-only stop-market order that fires when the mark price reaches your level.
You set them when you open a trade, or later on an open position. Then you do not have to watch the screen. The first level the mark price reaches sends its market exit and cancels the other exit (when one exit fires, the other is cancelled). The exit can fill in parts.
Set both on a 10x long
You put 60 USDT of margin on a BTC long at 10x, with BTC at 60,000. You want to take profit at +3% and stop the loss at −1%. Where do the two levels go?
- 1Find the position sizeMargin times leverage.60 × 10 = 600 USDT
- 2Find the size in BTCThe exits sell this much.600 ÷ 60,000 = 0.01 BTC
- 3Put the take-profit aboveA long gains when the price rises.60,000 + 60,000 × 3% = 61,800 USDT
- 4Put the stop-loss belowA long loses when the price falls.60,000 − 60,000 × 1% = 59,400 USDT
AnswerTake-profit at 61,800 and stop-loss at 59,400. Both are sells of 0.01 BTC that wait for the mark price.
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Why must a stop-loss come before liquidation?
A stop-loss helps only if it fires before liquidation. Both watch the same price: on Cryptathon the mark price is used for liquidation, take-profit and stop-loss triggers, and funding payments. So the stop-loss must sit between your entry and the liquidation price.
At 10x a long has about 9.5% of room before liquidation. The Leverage lesson shows where that number comes from.
Where must the stop-loss sit?
Same trade: a 10x BTC long from 60,000. About where is the liquidation price, and does a stop-loss at 59,400 fire first?
- 1Find the room at 10xOne divided by the leverage, minus the 0.5% maintenance margin.1 ÷ 10 − 0.5% = 0.095
- 2Turn it into a price moveHow far BTC can fall.60,000 × 0.095 = 5,700 USDT
- 3Find the liquidation priceAbout, using the rule of thumb.60,000 − 5,700 = 54,300 USDT
- 4Compare it with the stop-lossThe stop-loss sits this far above liquidation.59,400 − 54,300 = 5,100 USDT
AnswerLiquidation is at about 54,300, and the stop-loss at 59,400 fires long before it. A stop-loss below the liquidation price cannot be relied on to close a long before liquidation.
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How do you work out reward-to-risk?
The levels let you work out the gain or loss if each exit fills exactly at its level. The loss at the stop-loss is your risk. The gain at the take-profit is your reward. Put both in USDT, not only in per cent.
The two outcomes
Same 10x long of 0.01 BTC from 60,000, take-profit at 61,800, stop-loss at 59,400. What is each outcome, and what is the reward-to-risk?
- 1Find the gain at the take-profit61,800 is 1,800 USDT a BTC above the entry.1,800 × 0.01 = 18 USDT
- 2Find the loss at the stop-loss59,400 is 600 USDT a BTC below the entry.600 × 0.01 = 6 USDT
- 3Compare reward with riskYou can make 3 USDT for each 1 USDT you risk.18 ÷ 6 = 3
- 4Compare the risk with your marginBefore fees and any gap between the trigger and the fill.6 ÷ 60 = 10%
AnswerYou risk 6 USDT to make 18 USDT, a reward-to-risk of 3 to 1. The real result depends on the fill prices, fees and funding.
A higher reward-to-risk does not make a trade better by itself. A take-profit far away is reached less often. The ratio tells you how often you must be right to break even: at 3 to 1, one gain covers three losses, before costs and at the planned fills.
Common questions
Does a stop-loss guarantee your exit price?
No. On Cryptathon the stop-loss fires when the mark price reaches your level. Its market order sells to the bids to close a long, or buys from the asks to close a short. In a fast move the fill can be worse than the trigger price. If only part fills, if a stop only part-fills, a new stop is sent for the rest until the position is closed.
What fee do take-profit and stop-loss pay?
On Cryptathon each exit pays the taker fee, because the exit trades as a market order. The fee is a share of the size that trades at the exit. For a 0.01 BTC long, a take-profit at 61,800 sells 618 USDT and pays about 0.31 USDT. A stop-loss at 59,400 sells 594 USDT and pays about 0.30 USDT. The fee to open the trade was paid before.
Does higher leverage change where the stop-loss can go?
Yes. Higher leverage puts the liquidation price closer to your entry, so the stop-loss must be closer too. With a 0.5% maintenance margin, the room is about 1 ÷ leverage minus 0.5%: about 9.5% at 10x, 4.5% at 20x and 1.5% at 50x. A stop-loss 2% from the entry works at 10x, but at 50x it sits past liquidation.
Check yourself
Three questions on the whole lesson.
What to remember
- Where do take-profit and stop-loss go?For a long the take-profit sits above the entry and the stop-loss below; for a short it is the other way round.
- Why must a stop-loss come before liquidation?Put the stop-loss between your entry and the liquidation price; below it, the stop-loss cannot be relied on.
- How do you work out reward-to-risk?Work out the risk and the reward in USDT before you open, and compare them.