Creating synthetic long stock lets you open an options-based position that behaves exactly like 100 shares of stock, but without requiring you to invest in shares. In exchange, you are required to deposit collateral in your margin account equal to the strike value of a short position.
An example: You want to buy 100 shares at $60. You create a synthetic long stock position in options. The following options are available:
September 60 call 2.00
September 60 put 1.52
The synthetic long stock position