Quote from Crucis:
Cache, do you usually look about 45 days forward? I usually work with a 30 day view, less credit that way, but the overall risk is less.
Is your risk management different with 45 days vs. 30 days?
Not necessarily. For a credit vertical I generally won't open a position >45d from expiry though. I generally prefer about 30d. You and I have differing views on risk. But to answer your last question, yes it is different.
One of the 10 theories that economists agree on is that, "rational people think at the margin". They also say that people behave in a manner that is consistent with the idea of "rational self-interest". I would agree when we are talking about general life decisions, but I counter with the idea that in the trading world there are many "irrational" people.
I would extend the idea of thinking at the margin to pertain to writing credit spreads. I don't mind opening a position that is greater than 45d from expiry, AS LONG AS I'M COMPENSATED APPROPRIATELY. In my mind the rational trader is compensated proportionately for an additional amount of risk. In my experience there are a ton of traders that will take on the additional risk without requiring sufficient compensation.
For the position in question, I recieved enough compensation given my forecasts for the underlying. I could have waited another month for theta to eat away at the remaining credit. But remember to think rationally at the margin.....
Today I was sitting on a position that had the ability to return an additional 0.45/contract. In considering whether or not I would open the existing trade under the current situation (aka thinking at the margin), I decided that given my current forecast for the underlying I was better served taking the profits.
So yes, the risk management is very dependant on the present situation. I don't really care what happened in the past. When I opened this position, I didn't expect that I would hold it through expiry. Theta decay wasn't my original goal.