Quote from RichardRimes:
so just to clarify. IF I were on the other side of the trade I would have exercised thru my broker those TLT calls the previous day...then during the nite the OCC randomly assigns the calls? ok I get it. thx
FYI to all...so if you have short calls on a high div stock you WILL most likely be exercised even when there seems to be pretty good extrinsic value remaining. This happened two weeks prior to expiration.
It's all about the dividend payment, i.e. ex-dividend date. Always check ITM calls when the stock is about to go ex-div.
And, yes, assigments happen overnight hence you don't find out about until the next day. This is where the whole early call exercise prior to ex-div and shorts being responsible for the dividend comes from.
