Section 2 - R8 - Option Strategies Flashcards
Synthetic Forward (Formula)
Long Fwd = Long Call + Short Put
Call Payoff (Formulas)
Long Call = Max [(S-X), 0] - C0
Short Call = Min [(S-X), 0] + C0
Put Payoff (Formulas)
Long Put = Max [(X-S), 0] - P0
Short Put = Min [(S-X), 0] + P0
Δ Delta (Formula)
Δ = Δ Option / Δ Price
(+) Call
(-) Put
Gamma (Formula)
Gamma = Δ Delta / Δ Price
(+) Long Option
(-) Short Option
Vega (Formula)
Vega = Δ Option / Δ Vol
(+) Long Option
(-) Short Option
Theta (Formula)
Theta = Δ Option / Δ Time
(-) for short option
Covered Call (Formula)
Covered Call = Long Asset + Short Call
Payoff:
1) OTM: Gain = Limited to Premium
2) ITM: Loss will occur
Motivation:
- Yield enhancement if OTM
- Reduce LONG ASSET position
- Get P&L @ expiration
Portfolio Covered Call Value (Formula)
Long Covered Call Perspective:
Portfolio Value = (St - Value of Call)
Value of Call = Max [(S-X), 0]
Covered Call P&L (Formula and Rationale)
ITM Gain P&L = [(X-S0) + C0]
OTM Gain P&L = [Δ Asset Value + C0]
Rationale:
Always gain C0 as sold call
Gains ΔSt if OTM due to long asset
Gains (X-S0) because I locked sell @ X
Protective Put & Portfolio Value (Formula)
Protective Put = Long Stock + Buy Put
Long Protective Put Value = St + Value Put
Value Put = Max [(X-St), 0]
Rationale: Limit losses
Protective Put Payoff (Formula)
Payoff = Max [(S-X), 0] = ΔSt - P0 + Max [(X-St), 0]
Δ Delta Range for Calls & Puts (Interval)
Δ Call: [0,1], acts like stock @ 1
Δ Put: [-1,0], acts like stock @ 0
Δ Delta Call Behavior (Example)
ITM Call ~Δ = 1
OTM Call ~Δ = 0
Δ Delta Put Behavior (Example)
ITM Put ~Δ = (-1)
OTM Call ~Δ = 0