DeFi lacks natural interest rates, leading to challenges in replicating mature interest rate markets.DeFi can create a yield market using Perpetual Constant Maturity Options (PCMOs) for yield trading.In a yield market, participants must choose between Short and Long positions for generating revenue.A proper yield market requires observability, measurability, consistency, controlled volatility, and a structured yield curve.Market liquidity in a yield market can be ensured by structuring yield revenues to favor positions against market expectations.PCMOs serve as the foundation of DeFi's yield market, offering synthetic perpetual futures and a cost of carry mechanism.Notional-weighted yield distributions and drift-adjusted strikes help maintain liquidity and balance in the yield market.PCMOs provide a structured and tradable yield curve for DeFi, unlocking new financial instruments beyond traditional interest models.The yield term structure generated by PCMOs shows differing yields based on price variations and market movements.PCMOs introduce an innovative yield market structure, ensuring liquidity and directional yield generation in DeFi.