In order to solve an exercise, I need data from real European Call Options (on the same underlying). It sounds definitely trivial, but actually I feel a bit lost...do you mind giving a link/suggestion on where can I search, please?
For instance, this link (http://www.nasdaq.com/symbol/amzn/option-chain?callput=call&expir=stan) seems perfect. There are clearly listed all the usual informations I need (maturity time, strike price,...) but I don't understand the type of the option. It says "call" but...European Call? American Call? ...
Yahoo Finance seems a great source too, but I found the same problem. For instance, here (https://finance.yahoo.com/q/op?s=IBM&m=2016-02?s=IBM160219C00135000+Options) there are the "Call options from IBM" (right?) but again..are they call of which type?
Thanks very much in advance. Regards