Morpho launches fixed-rate product Midnight: both lenders and borrowers set prices independently, ending the era of interest-rate models

Author: Morpho

Compiled by: Deep Tide TechFlow

Deep Tide Reading: On-chain lending has reached a scale of $60 billion, but compared with the $200 trillion annual credit volume in traditional finance, it’s still a drop in the bucket. Morpho believes the bottleneck is the lack of fixed interest rates and maturity dates—institutions want certainty, not the passive floating rates delivered by algorithmic interest-rate models. Midnight lets both sides of the loan quote directly to each other, set their own interest rate and term, and no longer be price takers.

The time for fixed rates is here

When blockchain computation and transaction costs are high and participants are relatively passive, floating-rate lending makes sense. But today both assumptions have changed: blockchains are cheap and fast, and those entering the on-chain credit market—especially institutions and enterprises—have clear demands.

They want predictability: know what a position will earn or cost, and for how long. They also want to control all parameters of the loan, not just some. Morpho Blue already gives users control over risk, but both sides in the market still act as price takers, with interest rates determined by the interest-rate model. Blue gives participants control over risk; Midnight gives them control over both risk and interest rates.

Why it didn’t work before

Many people have tried to bring fixed-rate lending on-chain. Besides it being too early, most failed to scale for two main reasons.

First, most attempts layered fixed-rate lending on top of floating-rate pools. That doesn’t work: predictability can’t be built on something that continuously changes. Second, quote-based fixed-rate lending only works when there are enough participants actively quoting on both sides of the market—and early attempts struggled with that as well.

Midnight avoids both issues. It is a standalone primitive: fixed rates are in the core layer, and it doesn’t require starting from scratch—it inherits Morpho Blue’s existing ecosystem, including one of DeFi’s largest active participant bases.

Built for each type of participant

Midnight’s value differs for different participants:

Institutions gain a predictable term structure, full control over interest rates, risk, maturity dates, and market-level compliance—enabling them to enter long-duration positions and build more tailored use cases.

Fintech companies can offer predictable fixed-rate and multi-collateral credit products, customized to user needs, without having to build a credit engine from scratch.

Lenders and borrowers gain predictability and efficiency: a fixed interest rate during the loan period, the ability to quote across multiple markets, multiple assets used as collateral, and earning yield with floating rates or borrowing before Midnight orders are matched.

Curators gain a new way to differentiate. Blue lets curators configure risk; Midnight lets them configure both risk and interest rates, making duration a new dimension for curators.

One network, two market structures

Morpho Midnight is not a “V2” of Morpho Blue, and it is not a substitute. Morpho Network will now be built around two market structures to meet different needs: use floating rates with open-ended terms when flexibility matters, and use fixed rates with fixed terms when predictability matters. The two are complementary rather than competing: capital can earn yield on Blue while also quoting on Midnight, with liquidity on one side helping the other side grow.

Launch plan

The progressive rollout is designed to prioritize security and give participants time to adapt to the new dimensions Midnight introduces.

At launch, only core contracts will be deployed to support direct lending. Smart contract features like automatic rollovers, callbacks, and vault allocation are coming soon; they will improve Midnight’s usability, but will be released gradually rather than all at once on day one.

At application launch, it will be limited to one network (Base), one trading pair (cbBTC/USDC), and a limited set of maturity date choices. This allows fixed and floating interest rate dynamics to develop in parallel within a familiar market, before gradually expanding to more markets and networks.