Crypto options glossary
What is a Bitcoin short strangle?
A short strangle sells an out-of-the-money put below the price and an out-of-the-money call above it, with the same expiry. You keep both premiums while Bitcoin stays between the strikes. Beyond either breakeven the loss grows without a cap, so crypto sellers use a stop or add wings.
- Profits while Bitcoin stays between the two sold strikes.
- Breakevens: put strike − credit, and call strike + credit.
- The most it can make is the credit; the loss has no cap.
- Adding wings turns it into an iron condor.
Credit
21.54 USDT
2,154 per BTC, kept if Bitcoin ends between the strikes
Breakevens
80,346 / 87,654
Beyond these, the loss has no cap
73,856today 83,92793,998
10 lots (0.01 BTC), at expiry, before fees. Bought legs at the ask, sold legs at the bid, from Delta Exchange.
Questions people ask
How far out should the strikes be?
Wider strikes win more often and collect less. Many traders place them at or beyond the expected move or the OI walls, so Bitcoin must make an unusual move to reach them.
What if Bitcoin moves toward one strike?
That side starts losing while the other keeps earning. Common adjustments are buying a hedge, rolling the strike away, or exiting that side.
Daily or weekly strangles?
Daily strangles collect less but carry one day of risk; weekly ones collect more and carry the whole week, weekend included.
What is the maximum profit on a short strangle?
The credit received when you sell the two options, less fees. You keep all of it if Bitcoin settles between the two strikes.
What is the maximum loss on a short strangle?
There is no cap. Above the call strike or below the put strike, the loss grows with every dollar Bitcoin moves. A stop loss, or wings that turn it into an iron condor, puts a limit on it.
Does a short strangle need margin?
Yes. Because the loss is not capped, the exchange holds margin against a sold strangle. Adding wings usually reduces the margin, since the worst case is then known.
Keep going
- Lesson 12 · 8 minWhat is a Bitcoin iron condor?Hedging both sides: the iron condor
- Lesson 14 · 10 minHow does adjusting crypto options work when Bitcoin moves against you?Adjustments: the price walks into your strike
- GlossaryWhat is a Bitcoin straddle?Straddle
- Use it in AlgoclearStrategy builderStraddles, strangles, spreads, condors and more.
A short strangle, worked in numbers
An example with round numbers. Bitcoin is at 80,000. You sell the weekly 77,000 put for 450 and the 83,000 call for 500, 10 lots each, which is 0.01 BTC. The credit is 950 per Bitcoin: 9.50 USDT.
If Bitcoin settles anywhere between 77,000 and 83,000, both options expire worthless and you keep the 9.50 USDT. The breakevens are the strikes pushed out by the credit: 76,050 and 83,950.
Beyond them the loss grows. At 85,000 the call is worth 2,000, so the result is 950 − 2,000 = −1,050 per Bitcoin: a loss of 10.50 USDT. At 90,000 it is −60.50 USDT, more than six times the most the trade could ever make. That shape is why a strangle is never sold without a plan for the move.
Strangle, straddle or iron condor
Three ways to be paid for a quiet market.
| Short strangle | Short straddle | Iron condor | |
|---|---|---|---|
| Strikes sold | Out of the money, both sides | At the money, both | Out of the money, both sides |
| Wings bought | None | None | Yes, further out |
| Premium | Medium | Highest | Lowest |
| Range that wins | Wide | Narrow | Wide |
| Worst case | No cap | No cap | Capped at the wing |
The iron condor is a strangle that has paid part of its premium for a known worst case.
How traders run a strangle
The rules matter more than the entry.
- Strikes at or beyond the expected move or the open-interest walls, often chosen by delta, around 0.15 to 0.20 on each side.
- A stop loss in money on the whole position, set before entry, often a multiple of the credit.
- A profit target below the full credit: the last part of the premium carries the most risk for the least reward.
- An adjustment planned in advance for when the price walks toward one side: a hedge, a roll or an exit of that leg.
Why the strangle is popular in crypto
Bitcoin often trades in a range between big moves, and its option premiums are rich because volatility runs high. A strangle turns that into income, and with a new expiry every day it can be run one day at a time.
The risk that needs managing
The strangle wins often and small, and loses rarely but large. A stop loss, an adjustment rule, or wings that cap the loss keep the rare big move survivable. Algoclear can enter a strangle on a schedule and manage its stop and adjustments automatically.
Common mistakes with short strangles
They are nearly all about size and stops.
- Judging the trade by its win rate. It wins often and small, and loses rarely and large.
- Selling closer strikes for more premium after a run of wins.
- No stop, on a market that moves at night and at weekends.
- Holding for the last few dollars of premium into the final hours, when gamma is highest.
- Ignoring volatility: a jump in implied volatility makes both sold options dearer to buy back, with Bitcoin still in range.
Written by the Algoclear team · Updated 22 September 2026 · Examples use Bitcoin options on Delta Exchange India.
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