Lightspeed
August 15, 2025

Solana's Breakout DeFi Lending Protocol | Mary Gooneratne

Mary Gooneratne, co-founder of Loop Scale, unpacks the next evolution of on-chain lending. She explains how their order-book model moves beyond capital-inefficient pools to create a hyper-scalable credit market for Solana's exploding ecosystem of assets.

The Order Book Revolution

  • "What we've done is create an order book...where you're creating this base primitive of a bilateral credit transaction. So you have one borrower, one lender...and then that provides the foundation to build what we believe are the next 5 to 10 years of DeFi credit products on chain."
  • Loop Scale ditches the traditional pool-based model used by protocols like Aave. Instead of lending into a commingled pool, its order book directly matches individual borrowers and lenders, enabling bespoke terms like fixed rates and custom LTVs. This architecture solves two core problems: it eliminates capital inefficiency from idle funds and stops risky assets (like memecoins) from driving up borrow costs for safer collateral (like stablecoins) within the same pool.

Rebuilding After the Storm

  • "There's no protocol that's more secure than a protocol that's been through something like that. It just shows you everything that you thought you knew was wrong and really teaches you the tradeoff that you're making if you ever prioritize shipping speed over security."
  • Just two weeks after launching, Loop Scale suffered a $5.8 million exploit. Gooneratne clarifies it wasn't a typical oracle price manipulation but a technical failure where an attacker spoofed a program for a specific collateral asset. The team recovered all funds within two days, but the incident forged a new, security-first mindset, forcing a slowdown in shipping speed to ensure protocol robustness.

Unlocking Real-World Credit

  • "We kind of got our start doing RWA lending...they do tokenized whiskey on Solana...and we are still doing these fixed-term, fixed-payment schedule loans against casks and bottles."
  • Loop Scale's design is purpose-built for the long tail of assets that don't fit into traditional DeFi. The protocol is already facilitating loans against tokenized whiskey casks with partner Baxis, showcasing a powerful use case for Real-World Assets (RWAs). Future applications include on-chain receivables financing for small businesses and credit for DePIN operators looking to finance network expansion by borrowing against future cash flows.

Key Takeaways:

  • Loop Scale is betting that the future of DeFi lending isn't about bigger pools, but about precision and scalability. By becoming the specialized credit engine for Solana, it aims to unlock new markets far beyond the current scope of crypto-native leverage.
  • Order Books Over Pools: The next wave of lending innovation lies in moving away from one-size-fits-all liquidity pools to specialized, order-book-driven credit markets that can price risk on a per-asset basis.
  • Win Borrowers, Win the Market: The lending game is won on "originations." Protocols that can uniquely serve the borrowing needs for a diverse and growing set of collateral—from LSTs and LP positions to RWAs—will capture the market.
  • Become the Backend Engine: Instead of building an all-in-one DeFi suite, the bigger opportunity is to become the fundamental liquidity and risk engine for the entire ecosystem, powering embedded finance features like margin trading directly within other applications.

For further insights and detailed discussions, watch the full podcast: Link

This episode breaks down how Loop Scale's order book lending model on Solana challenges the capital inefficiencies of traditional DeFi pools, aiming to unlock credit for a new wave of on-chain assets from RWAs to LSTs.

Introducing Loop Scale: A New Primitive for DeFi Lending

  • Order Book-Based Lending: This model directly matches individual borrowers and lenders based on specific, customized loan terms (interest rate, duration, LTV). It functions like a bilateral credit transaction rather than drawing from a collective pool.
  • The Goal: Gooneratne explains the vision is to create a more scalable and capital-efficient foundation for credit that can support the growing universe of on-chain assets, including yield-bearing tokens and Real-World Assets (RWAs).
  • On "Looping": Despite the name, Loop Scale was not named after the popular DeFi strategy of "looping" (repeatedly borrowing against a yield-bearing asset to leverage its yield). Gooneratne humorously notes the name was chosen simply because the domain was available, though they do offer a structured borrowing product called "Loops" that functions as a carry trade.

The Problem with Traditional Pool-Based Lending

  • Inefficient Pricing: Interest rates in pools are typically a function of asset utilization, not collateral-specific risk. This means a user borrowing against a stablecoin like USDT pays the same rate as someone borrowing against a volatile memecoin like BONK. Gooneratne states, "If I'm borrowing... USDC against bonk, I'm paying the same rate as someone borrowing USDC against USDT, which inherently means that you're charging a premium to the person borrowing against USDT."
  • Capital Inefficiency: Pools often suffer from forced idle liquidity, as capital sits waiting to be borrowed. This structure also struggles to incorporate diverse or riskier assets without fragmenting liquidity into isolated pools, where the entire pool's risk is defined by its riskiest asset.
  • Lack of Customization: Pool-based loans are typically variable-rate and have indefinite durations, which prevents the creation of more sophisticated, structured credit products common in traditional finance.

Why Now? The Innovation Behind Order Book Lending

  • Market Maturity: The explosion of unique collateral assets on Solana—from Liquid Staking Tokens (LSTs) and LP positions to RWAs—creates strong demand for a lending model that can price risk on a per-asset basis. Previously, with fewer assets, the simplicity of pools was sufficient.
  • Technical and UX Abstractions: Loop Scale abstracts the complexity of the order book. Lenders can place capital into vaults that automatically manage orders based on predefined rules, while borrowers experience the immediacy of a market order. This design, enabled by Solana's high performance, makes the user experience feel as seamless as traditional DeFi lending.

Building on Solana: A Chain That Doesn't Constrain

  • Performance as a Key Differentiator: The primary value proposition of Solana has been its performance and low cost, which removed technical roadblocks. Gooneratne emphasizes, "The chain has never been a constraint."
  • Future-Proofing with Market Structure: While not a current bottleneck for Loop Scale, Gooneratne expresses excitement for Solana's ongoing market structure optimizations, like app-specific sequencers. She believes these will become critical as on-chain secondary markets for credit develop, reinforcing Solana's embrace of its role as a finance-optimized blockchain.

The Oracle Attack: A Trial by Fire

  • The Attack Vector: The exploit was not a traditional oracle price manipulation. Instead, a malicious actor exploited a technical vulnerability by passing in a spoofed program address for a specific collateral asset, tricking the protocol into accepting a false price feed and allowing for a series of under-collateralized loans.
  • Recovery and Learnings: The team successfully contacted the hacker and recovered all funds within two days. The incident forced a complete re-evaluation of their security processes. Gooneratne reflects, "There's no protocol that's more secure than a protocol that's been through something like that. It... really teaches you the tradeoff that you're making if you ever prioritize shipping speed over security."
  • Strategic Implication: This event serves as a critical case study for investors and researchers on the nuanced security risks in DeFi. It highlights that vulnerabilities can exist beyond price feeds, extending to program validation and integrations, especially when onboarding new and diverse asset types.

Rebuilding Trust and the Competitive Landscape

  • Ecosystem-Focused Growth: The strategy involves enabling DAOs and protocols to launch their own credit funds on Loop Scale, bootstrapping liquidity for their native assets (e.g., Sanctum LSTs, Orca LP tokens). This creates a net-additive growth loop for both Loop Scale and its partners.
  • Competing with Giants: When asked about competing with established players like Kamino, Gooneratne states the key is originations—attracting high-quality borrowers. Loop Scale's edge lies in its ability to support a wider range of collateral and offer more competitive, fixed rates, which is particularly attractive to the small number of "whale" borrowers who drive the majority of DeFi lending volume.

Unlocking New Frontiers for On-Chain Credit

  • Real-World Assets (RWAs): Loop Scale facilitates fixed-term loans for Baxis, a platform for tokenized whiskey casks on Solana. This provides financing to whiskey traders and funds, demonstrating a direct link between DeFi and real-world commercial activity.
  • Programmatic Cash Flow Financing: The protocol's infrastructure could enable financing for small businesses by using tokenized revenue streams (e.g., from a Shopify integration) as collateral. Programmatic control over these cash flows drastically reduces servicing costs and default risk, potentially lowering the cost of credit.
  • DePIN Financing: DePIN (Decentralized Physical Infrastructure Networks) represents another major opportunity. Helium node operators, for example, could borrow against their future network earnings to finance the purchase of more hotspots, creating a capital-efficient growth cycle for the network.

Navigating DeFi's Evolving Strategic Landscape

  • The "All-in-One" Trend: While protocols like Jupiter and Phantom are building comprehensive DeFi suites, Gooneratne sees Loop Scale's future as a specialized back-end liquidity and risk engine that integrates with other applications, rather than competing to "own the user" on the front end.
  • The Double-Edged Sword of Integration: She cautions that integrations can be a strategic risk, citing the dynamic between Radium and Pump.fun. A protocol must ensure it retains a core part of the value chain. "I think it's important to own a majority of your value chain," she advises, suggesting that being pure, easily-forkable infrastructure is a vulnerable position.
  • Founder's Mentality: Gooneratne's key advice for builders is to resist short-term market pressures and the noise of Crypto Twitter. By focusing on long-term product development with a close-knit team, founders can navigate volatility and build sustainable value.

Conclusion

This discussion reveals that the next evolution in DeFi lending hinges on moving from generalized capital pools to specialized, hyper-efficient credit markets. For investors and researchers, Loop Scale's order book model signals a critical shift. Monitor the adoption of such platforms and the new asset classes they onboard—like RWAs and DePIN collateral—to identify emerging, non-speculative yield opportunities.

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