I tend to keep things until expiration. This is probably wrong when judged by risk analysis.
e.g. I am currently holding an ANR put spread which expires this week and where the remaining premium on the short put is less than $1, which is less than 2% of the original premium.
Probably I should have closed this a couple of weeks ago but I am too cheap to pay the remaining premium and the commission on the remote chance that they have some sort of disaster.
Unfortunately there are no tables where I could look up the probability of a black swann occurance which would drop the stock price below my spread... so I close those I am at all nervous about and leave the others to expire.
Someday I will get caught and if I do it will be a costly mistake.
BTW: my broker has even marked that short option and offered me a reduced commission to close it out... but I persist.

e.g. I am currently holding an ANR put spread which expires this week and where the remaining premium on the short put is less than $1, which is less than 2% of the original premium.
Probably I should have closed this a couple of weeks ago but I am too cheap to pay the remaining premium and the commission on the remote chance that they have some sort of disaster.
Unfortunately there are no tables where I could look up the probability of a black swann occurance which would drop the stock price below my spread... so I close those I am at all nervous about and leave the others to expire.
Someday I will get caught and if I do it will be a costly mistake.
BTW: my broker has even marked that short option and offered me a reduced commission to close it out... but I persist.
