Since this is a basic introduction to options trading, we will be focusing on executing simple orders that just involve buying options.
From the options chain screen, you will have selected the option you wish to purchase by clicking on the options symbol. A separate order entry screen will be displayed and here, you have several things to specify to complete your order.
Quantity
A standard U.S. equity option usually represents 100 shares. Adjusted contracts can have different deliverables; confirm the multiplier and OCC adjustment terms.
All or None
This option is available for limit orders. If you select this option, your broker will try to fill all of the quantity you specified. If they are unable to do that, then none of your orders will be filled.