Index behaviour on expiration day

[Empty Pocket]

Is there a "typical" behaviour of the market indices on the monthly option expiration day?
Thank you in advance for sharing any thoughts or experience.
EP

 

[sidinuk]

Generally on Expiration Friday you'll find that the US indexes are quite volatile but end up going nowhere at the end of the day.

Obviously that is a generalisation and not a hard and fast rule, but you have to go with the probabilities.