Yield Decay
Yield decay refers to the gradual erosion of the expected returns from an investment, often caused by rising financing costs, diminishing staking rewards, or the shrinking of a price premium. In the context of derivatives, it can manifest as the reduction in the basis spread as a futures contract nears expiration, effectively lowering the potential profit for a cash and carry trade.
It can also occur in liquidity pools where increased competition for rewards leads to a lower annual percentage yield for individual participants. Traders must account for yield decay when modeling long-term profitability to avoid overestimating the gains from a strategy.
This phenomenon is often driven by market maturation, where arbitrage opportunities are competed away by institutional capital. Monitoring yield decay is essential for rebalancing portfolios and ensuring that capital is allocated to the most efficient protocols.
It is a critical risk factor in yield farming and complex derivative structures.