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Binary Option : delta
Issued on July 04 2011 par Strategies-options.com

Binary option and vanilla option delta are alike. What about binary option delta ?
It's been shown that :
Binary call=(∆call.S-C)/K
Binary put=(-∆put.S+P)/K

Where
∆ the vanilla call delta
S the spot
C the vanilla call
P the vanilla put
K the strike



I - Binary Deltas

Binary Delta is the first derivative of binary option with respect to the underlying.

∆ (Binary Call) = ∂ ( Binary call option ) / ∂S
∆ (Binary Put) = ∂ ( Binary Put option ) / ∂S

∆ Binary Call = ∂ ( ( ∆ . S - C ) / K )/∂S
∆ Binary Call = ( 1 / K ) . ( ∂ ( ∆ . S - C ) / ∂S )
∆ Binary Call = ( 1 / K ) . ( ( ∂ ∆ . S / ∂S ) – ( ∂C ) / ∂S ) )
∆ Binary Call = ( 1 / K ) . ( ( S . ( ∂ ∆ / ∂S ) + ∆ – ( ∂C ) / ∂S ) )
∆ Binary Call = ( 1 / K ) . ( ( S . ( Г ) + ∆ - ∆ ) )
∆ Binary Call = ( 1 / K ) . ( S . Г )
∆ Binary Call = Г . ( S / K )

The same way,
∆ Binary Put = - Г . ( S / K )

Binary Deltas are alike with vanilla gamma times "moneyness S / K ".



II - graphs

Binary call delta


Binary Put delta



Next : Binary Option : Gamma
Previous : Binary Options

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Other Derivatives - INDEX
Other Derivatives - CHAPTER I
Other Derivatives - CHAPTER II
Other Derivatives - CHAPTER III
Other Derivatives - CHAPTER IV

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