So, I understand that if I write a call option and someone decides to exercise it before it expires, I agree to sell them the stock for the listed price on the option.
I guess my confusion is, if I buy a call option from someone else and then sell it to another person before it expires and they then choose to exercise it: I do not have to sell the stock because I did not actually write the option.
In other words, the person at risk of selling the stock is the original writer of the option, and not any of the people who owned the option from the day it was written to exercise. Is this correct?