Author: Morpho

Translator: Deep Tide TechFlow

Deep Tide Introduction: On-chain lending has reached a scale of 60 billion dollars, but compared to the 200 trillion dollars in annual credit volume of traditional finance, it is still a small fraction. Morpho believes the bottleneck lies in the lack of fixed interest rates and expiry dates—institutions seek certainty, not passive floating rates provided by algorithmic models. Midnight allows both lending parties to quote directly, set their own interest rates and terms, and no longer be price takers.

The Time for Fixed Rates Has Come

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

They seek predictability: understanding what returns or costs a position will bring and how long it lasts. They also want to control all parameters of the loan, not just some. Morpho Blue has already allowed users to control risks, but both sides of the market are still price takers, with rates set by rate models. Blue gave participants risk control, while Midnight gives them control over both risk and interest rates.

Why It Wasn't Achieved Before

Many have attempted to bring fixed rate lending on-chain, but aside from being too early, most did not scale for two reasons.

First, most attempts tried to build fixed rates on top of floating rate pools. This doesn't work: predictability cannot be established on something that is continuously changing. Secondly, fixed rate lending based on quotes can only function when enough participants actively quote on both sides of the market, and early attempts faced difficulties in this regard.

Midnight has avoided these two points. It is an independent primitive, with fixed rates at its core, and does not start from scratch—it inherits the existing ecosystem of Morpho Blue: one of the largest active participant bases in DeFi.

Designed for Every Type of Participant

Midnight offers different value for different participants:

Institutions gain predictable term structures, comprehensive control over interest rates, risks, expiry dates, and market-level compliance, enabling them to enter long-term positions and build more customized use cases.

Fintech companies can offer predictable fixed rates and multi-collateral credit products, custom-tailored to user needs, without needing to build a credit engine from scratch.

Lenders and borrowers gain predictability and efficiency: fixed rates during the loan period, the ability to quote across multiple markets, using various assets as collateral, and earning yields or borrowing at floating rates before Midnight orders are executed.

Curators have a new differentiation approach. Blue allows curators to manage risks; Midnight enables them to manage both risks and interest rates, with duration becoming a new dimension of curation.

One Network, Two Market Structures

Morhpo Midnight is not a "V2" of Morpho Blue, nor a replacement. The Morpho network will now build around two market structures to fit different needs: flexible floating rates and open terms when flexibility is important; fixed rates and fixed terms when predictability is key. The two complement rather than compete: funds can yield on Blue while quoting on Midnight, with liquidity on one side helping to grow the other.

Launch Plan

The gradual launch aims to prioritize safety and give participants time to adapt to the new dimensions Midnight brings.

At launch, only core contracts will be available, supporting direct lending. Automatic renewals, callbacks, and treasury allocations are upcoming smart contract features that will enhance Midnight's usability, but will be rolled out gradually rather than all at once on launch day.

When applications launch, they will be limited to one network (Base), one trading pair (cbBTC/USDC), and a limited selection of expiry dates. This allows the dynamics of fixed and floating rates to develop in parallel within a familiar market, with further gradual expansion to more markets and networks thereafter.