Consider Nifty Jun Options are trading at 10820. I buy 1 lot ( 75 contracts ) of Nifty Jun Call Options at strike price 10800 as “intraday trade”. The premium paid = Rs. 100 * 75= 7500. After some hours, the premium becomes Rs.120 per contract and Nifty is Trading at 10850. I sell my options (before 3:15) at 120*75 = 9000. Now, how my profit be calculated?
Profit = { (10850-10800) *75 } - 7500 = -3750 = 3750 Loss
i.e. Profit = { (Current price- Strike Price) * Lot Size} - Premium paid
**OR**
Profit = 9000 - 7500 = +2500 = 2500 Profit
i.e. Profit = Total Sell premium - Total Buy Premium