XYZ is trading at $250.00 and you would like to purchase the underlying at the maximum price of $249.50 or better.
1) What to do?
You must send a limit order to buy XYZ at $249.50.
Enter the Order: Enter a limit order for XYZ at $249.50
2) What happens next?
You are either executed at the price of $249.50 or better or your order is never executed.