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Why Is Selling OTM Options a Common Strategy for Collecting Premium Income?

Selling OTM options (shorting) is popular because of the high probability that the option will expire worthless. Since OTM options have zero intrinsic value and their time value constantly decays (Theta decay), the seller benefits from both time and the price staying below the Call strike or above the Put strike.

The goal is to collect the entire premium as profit with a high statistical edge.

What Is the Concept of “Theta Decay” and How Does It Benefit an Option Seller?
Why Is the Delta of a Deep OTM Option Close to Zero?
What Is the Relationship between the Option’s Delta and Its Probability of Expiring In-the-Money?
How Does the Relationship between Delta and the Probability of an Option Expiring In-the-Money Affect Trading Strategy?