DeFi lending rates fall below zero as incentives create arbitrage opportunities

Source: Yellow Original Title: DeFi Lending Rates Drop Below Zero as Incentives Create Arbitrage Opportunities

Original Link: https://yellow.com/es/news/tasas-de-prde-fi-lending-rates-drop-below-zero-as-incentives-create-arbitrage-opportunities Decentralized finance lending markets experienced negative borrowing rates and a significant year-end deleveraging as incentive programs restructured the borrowing economy.

Morpho protocol’s Katana chain offered borrowers effective rates of -1.5% on vbETH and -1.15% on vbWBTC in early January.

Kamino’s USDC Prime vault saw its supply APY drop from 6.5% to below 4% on December 31, as approximately $75 million in leverage was unwound.

What happened

Morpho’s cross-chain lending markets showed divergent borrowing costs, with rates on the Ethereum mainnet significantly higher than on alternative chains.

Katana lending markets continue to be incentivized through rewards in the KAT token, although the token currently lacks trading liquidity.

The launch of On-Chain Earn by a platform in late December drove liquidity into the SyrupUSDC/USDT market on Arbitrum, compressing rates to around 1.1% from 4% on the mainnet.

The rate compression on December 31 at Kamino reflected fiscal calendar resets, encouraging portfolio rebalancing and deleveraging before year-end.

Utilization in Kamino’s USDC Prime vault dropped by approximately 13% within hours as positions were closed ahead of the calendar reset.

Why it matters

This dynamic highlights how protocol incentives can invert traditional lending economics, with borrowers receiving net payments instead of paying interest.

Year-end APY distortions demonstrate predictable seasonal patterns driven more by tax optimization than fundamental market changes.

Leverage typically rebuilds in early January after year-end rebalancing, creating temporary opportunities for cheaper debt during transition periods.

Rate divergences across chains underscore liquidity fragmentation and the impact of isolated incentive programs on borrowing costs.

However, the sustainability of negative rates depends entirely on ongoing protocol subsidies and not on organic market dynamics.