The short strangle, also known as sell strangle, is a neutral strategy in options trading that involve the simultaneous selling of a slightly out-of-the-money put and a slightly out-of-the-money call of the same underlying stock and expiration date.
|Short Strangle Construction|
|Sell 1 OTM Call|
Sell 1 OTM Put
The short strangle option strategy is a limited profit, unlimited risk options trading strategy that is taken when the options trader thinks that the underlying stock will experience little volatility in the near term. Short strangles are credit spreads as a net credit is taken to enter the trade.
Maximum profit for the short strangle occurs when the underlying stock price on expiration date is trading between the strike prices of the options sold. At this price, both options expire worthless and the options trader gets to keep the entire initial credit taken as profit.
The formula for calculating maximum profit is given below:
Large losses for the short strangle can be experienced when the underlying stock price makes a strong move either upwards or downwards at expiration.
The formula for calculating loss is given below:
There are 2 break-even points for the short strangle position. The breakeven points can be calculated using the following formulae.
Suppose XYZ stock is trading at $40 in June. An options trader executes a short strangle by selling a JUL 35 put for $100 and a JUL 45 call for $100. The net credit taken to enter the trade is $200, which is also his maximum possible profit.
If XYZ stock rallies and is trading at $50 on expiration in July, the JUL 35 put will expire worthless but the JUL 45 call expires in the money and has an intrinsic value of $500. Subtracting the initial credit of $200, the options trader's loss comes to $300.
On expiration in July, if XYZ stock is still trading at $40, both the JUL 35 put and the JUL 45 call expire worthless and the options trader gets to keep the entire initial credit of $200 taken to enter the trade as profit.
For ease of understanding, the calculations depicted in the above examples did not take into account commission charges as they are relatively small amounts (typically around $10 to $20) and varies across option brokerages.
However, for active traders, commissions can eat up a sizable portion of their profits in the long run. If you trade options actively, it is wise to look for a low commissions broker. Traders who trade large number of contracts in each trade should check out OptionsHouse.com as they offer a low fee of only $0.15 per contract (+$4.95 per trade).
The following strategies are similar to the short strangle in that they are also low volatility strategies that have limited profit potential and unlimited risk.
The converse strategy to the short strangle is the long strangle. Long strangle spreads are entered when large movement is expected of the underlying stock price.
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