Short Theta
Short Theta describes a position in options trading where the trader sells an option to collect a premium, betting that the option will lose value over time due to the passage of time. As an option approaches its expiration date, its time value decays, which works in favor of the seller.
This strategy is effectively renting out volatility, where the seller receives cash upfront in exchange for assuming the risk that the underlying asset price moves against them. In the context of cryptocurrencies, this is often executed through decentralized options protocols where liquidity providers act as the short theta entity.
The profit is realized as the extrinsic value of the option erodes, provided the asset price remains within a favorable range. It is a fundamental strategy for generating yield on digital assets but carries the risk of unlimited loss if the underlying asset experiences extreme volatility.