Why do you want to trade Option Spreads
Traders start out selling options by shorting out of the money calls or puts, sometimes both at the same time. Many options expire worthless. If you do not like the risk of naked options you can sell spreads to sell option premium.
Option Spreads is a defined risk strategy. It helps you to reduce risk from a trade. Especially with expensive stocks you might not want to trade naked options.
With the majority of options expiring worthless, many traders are interested in selling options. Options are a wasting asset. With no change in any of the underlying assumptions, an option will lose part of its value everyday until the option expires worthless.
Time only moves in one direction, so an option seller benefits from the effects of time decay everyday. The option seller, however, must protect against a large adverse price move, as well as an increase in implied volatility.
Types of Spread Strategies
Options spreads are the basic building blocks of many options trading strategies. A spread position is entered by buying and selling equal number of options of the same class on the same underlying security but with different strike prices or expiration dates.
The three main types of spreads are the vertical spread, calendar spread and the diagonal spread. They are grouped by the relationships between the strike price and expiration dates of the options involved.
Vertical spreads are spreads involving options of the same underlying security, expire in the same month, but have different strike prices. If you enter a position and you receive a credit than we talk about a credit spread. If you payed to set up the position then you entered a debit spread. spread
Calendar spreads are created using options of the same underlying security, same strike prices but with different expiration dates.
Diagonal spreads are constructed using options of the same underlying security but with different strike prices and expiration dates. They are called diagonal spreads because they are a combination of vertical and horizontal spreads.