The portfolio consists of a long position in a stock plus a short position in a European call option. This is known as writing a covered call. The long stock position covers or protects the investor from the payoff on the short call that becomes necessary if there is a sharp rise in the stock price.
——摘自《2019 Financial Risk Manager (FRM) Exam Part I Financial Markets and Products》P211
The investment strategy involves buying a European put option o a stock and the stock itself. This is referred to as a projective put strategy.
——摘自《2019 Financial Risk Manager (FRM) Exam Part I Financial Markets and Products》P211