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The iron butterfly is a neutral strategy and consists of a combination of a bull put credit spread and a bear call credit spread (see above). The iron butterfly is a special case of an iron condor (see above) where the strike price for the bull put credit spread and the bear call credit spread are the same.
A short butterfly position will make profit if the future volatility is higher than the implied volatility. A short butterfly options strategy consists of the same options as a long butterfly. However now the middle strike option position is a long position and the upper and lower strike option positions are short.
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: Long one out-of-the-money put: strike price of X − a; Short one at-the-money put: strike price of X; Short one at-the-money call: strike price of X
Butterfly - a neutral option strategy combining bull and bear spreads. Long butterfly spreads use four option contracts with the same expiration but three different strike prices to create a range of prices the strategy can profit from. [1] [2]
Payoffs from buying a butterfly spread Payoffs from selling a straddle Payoffs from a covered call. Combining any of the four basic kinds of option trades (possibly with different exercise prices and maturities) and the two basic kinds of stock trades (long and short) allows a variety of options strategies. Simple strategies usually combine ...
The first application to option pricing was by Phelim Boyle in 1977 (for European options). In 1996, M. Broadie and P. Glasserman showed how to price Asian options by Monte Carlo. An important development was the introduction in 1996 by Carriere of Monte Carlo methods for options with early exercise features.
In mathematical finance, Margrabe's formula [1] is an option pricing formula applicable to an option to exchange one risky asset for another risky asset at maturity. It was derived by William Margrabe (PhD Chicago) in 1978. Margrabe's paper has been cited by over 2000 subsequent articles.
A Ratio spread is a, multi-leg options position. Like a vertical, the ratio spread involves buying and selling options on the same underlying security with different strike prices and the same expiration date. In this spread, the number of option contracts sold is not equal to a number of contracts bought.