Lightspeed
December 23, 2025

How Kamino Became Solana's Largest Lending Protocol | Marius Ciubotariu

The Gigantic Mall: How Kamino is Rebuilding Global Finance on Solana

Author: Lightspeed


Quick Insight: This summary breaks down Kamino’s strategy to capture the trillions in off-chain capital by solving the fixed-rate borrowing problem. It is essential for builders looking to understand how intent-based architectures are replacing rigid utilization curves.

This episode answers:

  • Why does the "Gigantic Mall" analogy explain the inevitable migration of capital on-chain?
  • How do Borrow Intents transform borrowers from price takers into market makers?
  • What is the technical hurdle that has prevented fixed-rate borrowing from scaling until now?

Marius Ciubotariu, co-founder of Kamino, argues that the migration of finance to the blockchain is driven by the sheer gravity of capital efficiency. By moving from siloed TradFi shops to an open on-chain mall, Kamino aims to become the primary marketplace for every tokenized asset on Solana.

Top 3 Ideas

The Fixed Rate Frontier
  • Guaranteed Capital Costs: Fixed rates provide certainty for yield funds. This stability allows institutional players to refinance on-chain without fearing sudden interest rate spikes.
  • Intent Based Architecture: Borrow intents act like limit orders for liquidity. Users can specify their desired rate rather than being forced to accept the current utilization curve price.
  • Yield Curve Primitives: Adding duration to loans enables the creation of a native on-chain yield curve. This structure provides the necessary benchmarks for sophisticated interest rate hedging.
Bridging the Trillion Dollar Gap
  • Off Chain Collateral: Kamino now allows borrowing against assets held in qualified custodians. This feature permits massive treasuries to access DeFi liquidity without moving their underlying holdings.
  • Private Credit Integration: On-chain liquidity can now satisfy off-chain borrow demand through regulated funds. This creates a direct pipeline between retail lenders and real-world originators.
The Liquidity Gravity Well
  • The Mall Analogy: Open systems allow counterparties to meet and compete in a single venue. This concentration of mass creates a gravitational pull that makes siloed finance obsolete.
  • Prop AMM Design: The new RWA DEX uses oracle-based pricing to eliminate slippage for tokenized assets. This ensures that funds trade at their net asset value regardless of pool depth.

Actionable Takeaways

  • The Macro Movement: The transition from utilization-based pools to intent-based matching engines is the next evolution of DeFi. This movement mirrors the move from AMMs to order books in spot trading.
  • The Tactical Edge: Monitor the rollout of Kamino’s fixed-rate products to lock in borrowing costs for geared positions. This move protects against the volatility of variable rate markets during high-activity periods.
  • The Bottom Line: Kamino is positioning itself as the back-end for the next generation of fintech. If they successfully bridge off-chain collateral, the protocol moves from a crypto-native tool to a global financial utility.

Podcast Link: Click here to listen

Kamino is re-engineering Solana’s credit markets by replacing rigid interest rate curves with "borrow intents" and fixed-rate primitives, aiming to capture the trillions in TradFi capital currently trapped in qualified custody.

1. ANALYSIS & TRANSCRIPTION CHECK

Phonetic & Contextual Corrections:

  • "TRFI" corrected to TradFi (Traditional Finance).
  • "Salana" corrected to Solana.
  • "Helocks" corrected to HELOCs (Home Equity Lines of Credit).
  • "Lindy" corrected to Lindy Effect (The idea that the future life expectancy of a technology is proportional to its current age).
  • "A a" corrected to Aave.
  • "Oiler" corrected to Euler.
  • "Footer key" corrected to Futarchy (A form of governance where prediction markets decide policies).
  • "Propm" corrected to Prop AMM (Proportional Automated Market Maker).

Critical Themes:

  • Liquidity Aggregation: The transition from fragmented financial silos to a unified on-chain "mall" model.
  • Fixed-Income Primitives: The introduction of fixed-rate borrowing and "borrow intents" to stabilize cost of capital.
  • Institutional Rails: Bridging off-chain custodied assets with on-chain liquidity via private credit and RWA (Real World Asset) infrastructure.
  • Protocol Evolution: Kamino’s shift from a consumer-facing app to a foundational backend for FinTech and institutional treasuries.

2. THE SHOW NOTES

1️⃣ The Hook

Kamino is re-engineering Solana’s credit markets by replacing rigid interest rate curves with "borrow intents" and fixed-rate primitives, aiming to capture the trillions in TradFi capital currently trapped in qualified custody.

2️⃣ Chronological Deep Dives

The "Mall" Theory of On-Chain Finance

Marius Ciubotariu argues that the migration of finance to the blockchain is driven by capital efficiency rather than mere speculation. He posits that decentralized finance (DeFi) functions as a massive liquidity aggregator that outperforms fragmented traditional systems.

  • Finance currently operates in isolated silos, leading to high user capture and low capital efficiency.
  • On-chain systems allow counterparties to meet in a single, open environment, driving down costs through direct competition.
  • The "Gravity" effect: Once a protocol reaches critical mass, the cost of borrowing becomes so low that ignoring the blockchain becomes a competitive disadvantage.
  • “The analogy would be you have like a few shops here and there or you have a gigantic mall where everyone comes.”Marius Ciubotariu

The Tokenization of Everything

The conversation shifts to the future of asset types on Solana, moving beyond native tokens to encompass the entire spectrum of global wealth.

  • Kamino views the market in two categories: long-term holds (stocks, gold, tech) and yield-generating trades (looping).
  • Prime (a tokenized deposit platform by Figure) currently allows users to lend to originators of HELOCs (Home Equity Lines of Credit), providing a yield source uncorrelated with crypto volatility.
  • Tokenized wrappers for private credit funds and Apollo’s credit fund are already live on Kamino, signaling the end of the "crypto-only" collateral era.
  • “I think eventually everything will get tokenized. The market is just too big to ignore.”Marius Ciubotariu

Fixed Rates and the Death of the Utilization Curve

Marius details why traditional DeFi lending models—based on utilization curves—fail sophisticated borrowers who require predictable costs.

  • Kamino is launching fixed-rate, fixed-term borrowing to support "carry trades" (borrowing at a low rate to invest in a higher-yielding asset) where interest rate spikes would otherwise wipe out margins.
  • Borrow Intents introduce a limit-order logic to lending; borrowers can specify the maximum rate they are willing to pay, effectively becoming "market makers" for credit.
  • The protocol uses a hybrid model that settles intents against a liquidity pool, avoiding the scalability issues of pure peer-to-peer lending.
  • “Borrow intent will allow borrowers to be makers... the curve is kind of out of the equation and you allow price discovery of interest rates to happen.”Marius Ciubotariu

Institutional Bridges: Off-Chain Collateral and Private Credit

A major bottleneck for institutional DeFi adoption is the requirement for assets to remain in qualified custody. Kamino’s new suite addresses this regulatory and security constraint.

  • Kamino now enables borrowing against collateral held in off-chain custodians, allowing entities like the Solana Foundation’s digital treasury to access liquidity without moving assets into a hot wallet.
  • The Private Credit product creates a permissionless layer for on-chain liquidity to flow into regulated off-chain funds in jurisdictions like Switzerland or Liechtenstein.
  • This architecture targets the "off-chain crypto" market, which remains significantly larger than the current DeFi ecosystem.
  • “Some people still have to live in qualified custodians... but it's cheaper to borrow on chain because lots of liquidity is migrating on chain.”Marius Ciubotariu

The RWA DEX and the Build Kit Strategy

To support the liquidation and trading of Real World Assets (RWAs), Kamino is launching a specialized exchange and an integration suite for third-party developers.

  • The RWA DEX utilizes a Prop AMM (Proportional Automated Market Maker) design to ensure assets trade at their Net Asset Value (NAV) without the price impact typical of standard AMMs.
  • The Kamino Build Kit provides a standardized way for FinTechs and exchanges to embed Kamino’s lending and yield products directly into their own interfaces.
  • This "Backend-as-a-Service" approach positions Kamino to capture volume from users who may never visit the Kamino website.
  • “The DEX was the missing piece... it trades at that price and if it runs out of inventory, the market maker fills it, but at least people don't have to take price impact.”Marius Ciubotariu

3️⃣ Investor & Researcher Alpha

  • The New Primitive: Fixed-rate borrowing is the essential catalyst for institutional "carry trades" on Solana. Watch for a surge in TVL (Total Value Locked) as these products move from roadmap to production in Q1.
  • Liquidity Locality: While assets are cross-chain, liquidity remains local. Kamino is prioritizing bridging high-liquidity Ethereum assets (like PT-USDC) to Solana to bootstrap its own credit markets rather than waiting for native Solana versions to scale.
  • Revenue Shift: Protocol revenue is shifting from retail "looping" fees to institutional "origination" and "backend" service fees. The "Build Kit" indicates a move toward a B2B2C model.

4️⃣ Strategic Conclusion

Kamino is transitioning from a lending protocol into a comprehensive credit layer for Solana. By solving for fixed rates and off-chain custody, they are removing the final barriers for institutional capital. The next step for the industry is the standardization of RWA liquidation via NAV-pegged AMMs.

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