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Iron Butterfly

The Iron Butterfly is a neutral options strategy designed for traders who anticipate low volatility in the underlying asset's price. It combines both put and call options to generate profits primarily through the decay of option premiums with a controlled risk exposure. This strategy is a popular choice among traders who expect the stock to remain at or near a particular price by expiration.


The Setup

For instance, assume you're considering a stock, XYZ Corp, which is currently trading at $100. To set up an Iron Butterfly, you would:

  1. Buy an out-of-the-money put with a strike price of $95 for $1.
  2. Sell an at-the-money put with a strike price of $100 for $4.
  3. Sell an at-the-money call with a strike price of $100 for $4.
  4. Buy an out-of-the-money call with a strike price of $105 for $1.

All options would have the same expiration date. The net credit received when setting up this trade would be $6 ($8 received - $2 paid).


Who Should Consider It

This strategy is suitable for traders who expect minimal movement in the underlying asset and want to profit from this stability. It's particularly useful in a market environment where the asset is predicted to hover around a known price point.


Strategy Explained

The Iron Butterfly aims to maximize the premium collected from the sold at-the-money options, which will be worth the most if the stock price stays near the strike price at expiration. The long positions in the out-of-the-money put and call protect against substantial moves in either direction.


Breakeven Process

The breakeven points for the Iron Butterfly are calculated by adding and subtracting the total premium received from the strike price of the sold options:

  1. Upper breakeven: Strike price of sold call + net credit received = $100 + $6 = $106.
  2. Lower breakeven: Strike price of sold put - net credit received = $100 - $6 = $94.


Sweet Spot

The optimal scenario occurs when the stock price finishes at the strike price of the sold options ($100) at expiration. This results in maximum profit as the sold options expire worthless, allowing the trader to retain the full premium.


Max Profit Potential

The maximum profit for an Iron Butterfly is the initial net credit received, which is realized if the stock price is exactly at the strike price of the sold options at expiration.


Max Loss

The maximum loss occurs if the stock price moves significantly above the highest strike or below the lowest strike. It is calculated as the difference between the strike prices of the long and short calls or puts minus the net credit received. Here, the maximum loss would be:

  • $5 (difference between either the calls' or puts' strikes) - $6 (net credit) = $1 per share.


Risk

The risk is capped at the difference between the strike prices minus the credit received. The most significant risk occurs if there is a significant move in the price of the underlying asset, which can be somewhat mitigated by the protective long call and

put.


Time Decay

Time decay (theta) benefits the Iron Butterfly, especially as expiration approaches, provided the stock price remains near the strike price of the sold options. This erosion in time value increases the probability of retaining the premium received.


Implied Volatility

Lower implied volatility after entering the position is favorable for the Iron Butterfly. As volatility decreases, the likelihood of the stock price making a significant move decreases, enhancing the potential for the sold options to expire worthless.


Conclusion

The Iron Butterfly is an excellent strategy for capitalizing on stock price stability within a narrow range. It offers defined risk and potential profit, making it a controlled approach to options trading during periods of expected low volatility.