Iron butterfly (options strategy)

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In finance an iron butterfly, also known as the ironfly, is the name of an advanced, neutral-outlook, options trading strategy that involves buying and holding four different options at three different strike prices. It is a limited-risk, limited-profit trading strategy that is structured for a larger probability of earning smaller limited profit when the underlying stock is perceived to have a low volatility.

Contents

It is known as an iron butterfly because it replicates the characteristics of a butterfly with a different combination of options (compare iron condor). [1]

Short iron butterfly

A short iron butterfly option strategy will attain maximum profit when the price of the underlying asset at expiration is equal to the strike price at which the call and put options are sold. The trader will then receive the net credit of entering the trade when the options all expire worthless. [2]

A short iron butterfly option strategy consists of the following options:

where X = the spot price (i.e. current market price of underlying) and a > 0.

Limited risk

A long iron butterfly will attain maximum losses when the stock price falls at or below the lower strike price of the put or rises above or equal to the higher strike of the call purchased. The difference in strike price between the calls or puts subtracted by the premium received when entering the trade is the maximum loss accepted.

The formula for calculating maximum loss is given below:

Break even points

Two break even points are produced with the iron butterfly strategy.

Using the following formulas, the break even points can be calculated:

Example of strategy

Long iron butterfly (reverse iron butterfly)

A long iron butterfly option strategy will attain maximum profit when the price of the underlying asset at expiration is greater than the strike price set by the out-of-the-money put and less than the strike price set by the out-of-the-money call. The trader will then receive the difference between the options that expire in the money, while paying the premium on the options that expire out of the money. [7]

Related Research Articles

In finance, a put or put option is a derivative instrument in financial markets that gives the holder the right to sell an asset, at a specified price, by a specified date to the writer of the put. The purchase of a put option is interpreted as a negative sentiment about the future value of the underlying stock. The term "put" comes from the fact that the owner has the right to "put up for sale" the stock or index.

In finance, a straddle strategy involves two transactions in options on the same underlying, with opposite positions. One holds long risk, the other short. As a result, it involves the purchase or sale of particular option derivatives that allow the holder to profit based on how much the price of the underlying security moves, regardless of the direction of price movement.

In finance, a price (premium) is paid or received for purchasing or selling options. This article discusses the calculation of this premium in general. For further detail, see: Mathematical finance § Derivatives pricing: the Q world for discussion of the mathematics; Financial engineering for the implementation; as well as Financial modeling § Quantitative finance generally.

<span class="mw-page-title-main">Butterfly (options)</span> Options trading strategy

In finance, a butterfly is a limited risk, non-directional options strategy that is designed to have a high probability of earning a limited profit when the future volatility of the underlying asset is expected to be lower or higher than that asset's current implied volatility.

<span class="mw-page-title-main">Box spread</span>

In options trading, a box spread is a combination of positions that has a certain payoff, considered to be simply "delta neutral interest rate position". For example, a bull spread constructed from calls combined with a bear spread constructed from puts has a constant payoff of the difference in exercise prices assuming that the underlying stock does not go ex-dividend before the expiration of the options. If the underlying asset has a dividend of X, then the settled value of the box will be 10 + x. Under the no-arbitrage assumption, the net premium paid out to acquire this position should be equal to the present value of the payoff.

In finance, a collar is an option strategy that limits the range of possible positive or negative returns on an underlying to a specific range. A collar strategy is used as one of the ways to hedge against possible losses and it represents long put options financed with short call options. The collar combines the strategies of the protective put and the covered call.

In finance, a calendar spread is a spread trade involving the simultaneous purchase of futures or options expiring on a particular date and the sale of the same instrument expiring on another date. These individual purchases, known as the legs of the spread, vary only in expiration date; they are based on the same underlying market and strike price.

The iron condor is an options trading strategy utilizing two vertical spreads – a put spread and a call spread with the same expiration and four different strikes. A long iron condor is essentially selling both sides of the underlying instrument by simultaneously shorting the same number of calls and puts, then covering each position with the purchase of further out of the money call(s) and put(s) respectively. The converse produces a short iron condor.

In finance, a debit spread, a.k.a. net debit spread, results when an investor simultaneously buys an option with a higher premium and sells an option with a lower premium. The investor is said to be a net buyer and expects the premiums of the two options to widen.

In options trading, a bull spread is a bullish, vertical spread options strategy that is designed to profit from a moderate rise in the price of the underlying security.

In options trading, a bear spread is a bearish, vertical spread options strategy that can be used when the options trader is moderately bearish on the underlying security.

<span class="mw-page-title-main">Naked option</span> Investment strategy

A naked option or uncovered option is an options strategy where the options contract writer does not hold the underlying security position to cover the contract in case of assignment. Nor does the seller hold any option of the same class on the same underlying security that could protect against potential losses. A naked option involving a "call" is called a "naked call" or "uncovered call", while one involving a "put" is a "naked put" or "uncovered put".

Option strategies are the simultaneous, and often mixed, buying or selling of one or more options that differ in one or more of the options' variables. Call options, simply known as Calls, give the buyer a right to buy a particular stock at that option's strike price. Opposite to that are Put options, simply known as Puts, which give the buyer the right to sell a particular stock at the option's strike price. This is often done to gain exposure to a specific type of opportunity or risk while eliminating other risks as part of a trading strategy. A very straightforward strategy might simply be the buying or selling of a single option; however, option strategies often refer to a combination of simultaneous buying and or selling of options.

The backspread is the converse strategy to the ratio spread and is also known as reverse ratio spread. Using calls, a bullish strategy known as the call backspread can be constructed and with puts, a strategy known as the put backspread can be constructed.

Pin risk occurs when the market price of the underlier of an option contract at the time of the contract's expiration is close to the option's strike price. In this situation, the underlier is said to have pinned. The risk to the writer (seller) of the option is that they cannot predict with certainty whether the option will be exercised or not. So the writer cannot hedge their position precisely and may end up with a loss or gain. There is a chance that the price of the underlier may move adversely, resulting in an unanticipated loss to the writer. In other words, an option position may result in a large, undesired risky position in the underlier immediately after expiration, regardless of the actions of the writer.

In finance, an option is a contract which conveys to its owner, the holder, the right, but not the obligation, to buy or sell a specific quantity of an underlying asset or instrument at a specified strike price on or before a specified date, depending on the style of the option. Options are typically acquired by purchase, as a form of compensation, or as part of a complex financial transaction. Thus, they are also a form of asset and have a valuation that may depend on a complex relationship between underlying asset price, time until expiration, market volatility, the risk-free rate of interest, and the strike price of the option. Options may be traded between private parties in over-the-counter (OTC) transactions, or they may be exchange-traded in live, public markets in the form of standardized contracts.

In finance, a credit spread, or net credit spread is an options strategy that involves a purchase of one option and a sale of another option in the same class and expiration but different strike prices. It is designed to make a profit when the spreads between the two options narrows.

<span class="mw-page-title-main">Strangle (options)</span>

In finance, a strangle is an options strategy involving the purchase or sale of two options, allowing the holder to profit based on how much the price of the underlying security moves, with a neutral exposure to the direction of price movement. A strangle consists of one call and one put with the same expiry and underlying but different strike prices. Typically the call has a higher strike price than the put. If the put has a higher strike price instead, the position is sometimes called a guts.

Stock option return calculations provide investors with an easy metric for comparing stock option positions. For example, for two stock option positions which appear identical, the potential stock option return may be useful for determining which position has the highest relative potential return.

<span class="mw-page-title-main">Condor (options)</span> Options trading strategy

A condor is a limited-risk, non-directional options trading strategy consisting of four options at four different strike prices. The buyer of a condor earns a profit if the underlying is between or near the inner two strikes at expiry, but has a limited loss if the underlying is near or outside the outer two strikes at expiry. Therefore, long condors are used by traders who expect the underlying to stay within a limited range, while short condors are used by traders who expect the underlying to make a large move in either direction. Compared to a butterfly, a condor is profitable at a wider range of potential underlying values, but has a higher premium and therefore a lower maximum profit.

References

  1. Natenberg, Sheldon (2015). "Chapter 14". Option volatility and pricing: advanced trading strategies and techniques (Second ed.). New York. ISBN   9780071818780.{{cite book}}: CS1 maint: location missing publisher (link)
  2. "Iron Butterfly Explained | Online Option Trading Guide".
  3. "Long Iron Butterfly Spread". www.fidelity.com. Archived from the original on 2015-09-23.
  4. http://www.minyanville.com/businessmarkets/articles/iron-butterfly-option-strategy-options-strategies/12/2/2010/id/31464x [ dead link ]
  5. "Iron Butterfly Options Strategy - the Options Playbook".
  6. "Iron Butterfly Spread | Iron Butterfly Option".
  7. "The Reverse Iron Butterfly Spread - Trading a Volatile Market".