Building Know-how in Options

I am new to options.

While reading one of the books in options I thought about creating this thread. Can we help each other by sharing/recommending study materials, Q & A etc?


My first query about selling options :

Can the buyer exercise his/her contract before the expiry date?

Dear Monasona

What book are or did you read about options?

DanPickUp

All the stock and index options can be excercised only on the expiry day.

You should explain why it is like that as there are European style options and American style options

Indian exchanges were offering American styled options till 31st January 2012. In American styled options you can excercise options before due date. From 1st February 2012, NSE switched to European styled options. Here, you cannot exercise the option before the expiry date.

Wrong Info.

The National Stock Exchange (NSE) switched to European style option for all contracts expiring on January 27, 2011 and onwards.

Thank you for the info.
I was confused as Index options in India can be exercised only on the day of expiry (European Style) and stock options can be exercised at any day ( American style).
However, as far I understood, this has changed with NSE new circular and now it is only CE (Call European style) or PE (Put European style )...Correct me if I am wrong.
Regards

Ashwani Gujral's book.

Thank you very much.