Assuming contract size = 1000, for every 1000 shares, how many call options need to sell in order to protect fall in share price, 1000/delta or 1/delta? Thank you
Since delta hedge is for selling call option (we ignore buying put option first), if later the share price really drops, so does call option value, our counter party should lapse the call option. Does that mean we only gain from the option premium, pls?
For your first question, if you are asked how many options then it is 1000/delta. If you are asked how many contracts then it is 1/delta (rounded to the nearest contract).
For your second question, the answer is yes 🙂 (although you could always buy put options)