How to tell which one is "European Option", and which one is "American Option"? Hi every expert, It is very easy to understand the difference between "European Option" and "American Option". However, I tried to search all over the internet, but no website can tell me which stock and which index is "European Option", and which stock and which index is "American Option"!!! Would everyone please provide me the information? or is there a website that have a list of stock and index, and clearly tell me that what kind of option they are? Thank you very very much!!!