A credit spread strategy involves selling an option to receive a premium while simultaneously buying another option of the same type and expiration date but with a different strike price. The primary objective is to generate income by collecting the net premium, with the long option serving to limit potential losses. This approach is typically employed when a trader anticipates a neutral or favorable price movement for the underlying asset, allowing the short option to expire worthless.
Premium
The core component of a credit spread strategy is the net premium received upon initiation, which represents the maximum potential profit. This premium is derived from selling an option with a higher intrinsic or time value than the option purchased. The strategy relies on the principle of time decay, or theta, to erode the value of the short option faster than the long option, allowing the trader to keep the initial credit.
Risk
Credit spreads are characterized by a defined risk profile, where the maximum loss is precisely calculated at the time of trade entry. The long option purchase acts as a protective measure, capping the potential loss at the difference between the strike prices minus the initial premium received. This structure provides a significant advantage over naked option selling, which exposes the trader to potentially unlimited risk in adverse market conditions.
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