plusderiva.py

Created by juliette-1

Created on June 23, 2025

1.64 KB


Participation rate = % des gains dun portefeuille full actions que tu conserves
en prenant une protection.
= nb dactions avec put/ nb daction si 100% actions 

Cout de la stratégie par unité = S + P - C
Call : premium reçu car tu vends 
Put : premium payé car tu achètes 

Différentes stratégies 
Protective put
Tu achètes laction  gros coût (prix de laction)
Tu payes le put  prime du put
Coût = S + P


Covered call
Tu achètes laction  gros coût (prix de laction)
Tu vends un call  tu encaisses une prime
Coût = S - C

Collar
Tu achètes laction
Tu achètes un put (tu payes)
Tu vends un call (tu encaisses)
Coût = S + P - C

Bull spread (avec calls)
Tu achètes un call bas strike (tu payes)
Tu vends un call haut strike (tu encaisses)
Coût = prime du call acheté - prime du call vendu

Bear spread (avec calls)
Tu vends un call bas strike (tu encaisses)
Tu achètes un call haut strike (tu payes)
Coût = prime du call acheté - prime du call vendu

Butterfly spread
Tu achètes un call bas strike
Tu vends 2 calls centre strike
Tu achètes un call haut strike
Coût = (prime call bas + prime call haut) - 2 × prime call centre

Straddle
Tu achètes un call
Tu achètes un put
Coût = C + P

Strangle
Tu achètes un call out of the money (moins cher)
Tu achètes un put out of the money (moins cher)
Coût = C + P (moins cher quun straddle)

Payoffs 
Call : Max(St-K,0)
Ce qui donne :
  Si S_T  260  0
  Si 260 < S_T < 270  S_T - 260
  Si S_T  270  (S_T - 260) - (S_T - 270) = 10
Payoff du put=max(KST,0)
Supposons un strike K=100 
Si ST=110
o  call : 110100=10
o  put : 0
Si ST=90
o  call : 0
o  put : 10090=10



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