Strategy

Quote from Chuck Krug:

So i shorted 100 IWM
shorted 1 sep 70 put
bought 100 dia
and sold 1 sep 125 call

Back to square one, huh!? :)

Why do you insist on making two trades instead of one?
 
Quote from Chuck Krug:

to try and stay market neutral overnight

It's not about being market neutral.

Instead of shorting 100 IWM and 1 sep 70 put, you could've just shorted 1 sep 70 call and have the same exposure. Also, instead of buying 100 DIA and shorting 1 sep 125 call, you could've just shorted 1 sep 125 put.

Why make 4 trades and pay 4 commissions and slippage, when you can make 2 trades to achieve the same position!?
 
Quote from Chuck Krug:

i would never short a put without the underlying

It's convertible. Shorting the underlying and the put is synthetically equivalent to selling the call (same strike) outright.

I am selling the 170P when I go long 100 IBM and sell the 170C. The difference between the two positions is the conversion arbitrage. I realize you're stubborn, but it's more important that you "get it" then concern yourself with the additional $10 in commission and slip.

You are short a naked put when you buy XYZ and sell a call.
 
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