Strangle (options)
A strangle combines an out-of-the-money put and an out-of-the-money call with the same expiry but different strikes. It is cheaper than a straddle and needs a larger move to profit when bought; when sold, it keeps the premium as long as the underlying settles between the strikes, with open-ended risk beyond them.
Senzoukria · Glossary · Updated September 2026
At a glance
- Construction
- OTM put + OTM call, same expiry
- Breakevens (long)
- Put strike − premium, call strike + premium
- Compared with a straddle
- Cheaper, wider breakevens, less gamma at the money
Worked example
Underlying at 100, 30 days, 20% implied volatility, zero rates. The 95 put costs 0.57 and the 105 call 0.64, so the strangle costs 1.21, about a quarter of the 4.57 straddle. At expiry the long strangle breaks even below 93.79 or above 106.21; anywhere between 95 and 105 the whole premium is lost. The seller keeps the 1.21 in that range and loses beyond the breakevens, without limit on the call side.
| Structure | Cost | Lower breakeven | Upper breakeven |
|---|---|---|---|
| Long 100 straddle | 4.57 | 95.43 | 104.57 |
| Long 95/105 strangle | 1.21 | 93.79 | 106.21 |
Greeks and wing exposure
- A strangle's gamma is spread over two strikes rather than concentrated at one: at inception it is lower than the straddle's, and it peaks as the underlying approaches either strike.
- Its vega is concentrated in the wings, so it is sensitive to changes in the smile, not only in at-the-money volatility; a steepening put skew raises the put leg's value more.
- Short strangles carry negative vomma: a jump in implied volatility hurts more than vega alone suggests.
- Because out-of-the-money puts on equity indices trade at higher implied volatility than calls, the put leg often costs more than the equidistant call; in the flat-volatility example above it costs slightly less.
Why sellers like it and what it costs
Short strangles are a common way to collect option premium with room for the underlying to move. The trade-off is the distribution of outcomes: many small gains when the underlying stays in range, and losses that can be several times the premium when it leaves. In a sell-off, the put leg's delta and implied volatility rise together, which is where the largest losses of short strangles typically come from.
On a flow tape and in Senzoukria
A strangle prints as a put and a call on different strikes of the same expiry, often in the same size and at the same instant. Senzoukria's Option Flow can tag such pairs MULTI when their sizes match and they print within 25 milliseconds; the strike ladder, which shows call premium on one side and put premium on the other around spot, makes symmetric activity on both wings visible. Neither view can tell a strangle from two unrelated trades with certainty.
Related
In the same section
- Strike pinning
- Strike
- Stopping volume
- Survivorship bias
- Stop-loss
- Systematic strategy
- Stop-limit order
- t-statistic
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Frequently asked questions
- Is a short strangle safer than a short straddle?
- It is further from the money, so it loses less on moderate moves and more often expires worthless. But it collects less premium, and on a large move its losses grow just as fast. Neither is safe; they distribute risk differently.
- How far out should strangle strikes be?
- There is no correct distance; it is a trade-off between premium collected and probability of breach. Traders often express the distance in delta, for example 10- or 16-delta strikes, so that the choice adapts to volatility and time to expiry.