TL;DR
- JustLend DAO launched SBM V2 on June 17, moving TRON’s largest lending protocol from shared collateral pools to isolated markets.
- The upgrade uses Vaults, independent borrowing markets, per-market risk parameters, and adaptive interest rates to reduce contagion and improve capital efficiency.
- Depositors receive automated yield from markets using their Vault liquidity, while JST holders govern risk changes through JustLend Improvement Proposals and community review as competition for capital intensifies.
JustLend DAO has rolled out Supply and Borrow Market V2, a redesign that moves TRON’s largest lending protocol away from shared collateral pools and toward isolated markets. Launched on June 17, the upgrade is meant to reduce contagion risk when one collateral asset collapses. The change sounds like back-end plumbing, but the stakes are broader because JustLend regularly ranks among the top five DeFi lending protocols by total value locked. In plain terms, JustLend is trying to make lending failures less contagious, turning risk containment into its central product argument for depositors.
📢SBM V2 Now Live on JustLend DAO
JustLend DAO has launched Supply and Borrow Market V2 (SBM V2) on Jun 17, 2026, introducing an isolated-collateral lending protocol with a dual-layer structure of Vaults and Markets, along with an Adaptive Curve Interest Rate Model.
Key… pic.twitter.com/r1sE8jLl6T
— JUST DAO (@DeFi_JUST) June 17, 2026
The new system separates depositors’ liquidity from borrowers’ collateral through a two-tier structure. Users can place assets such as USDT into a Vault, which functions as a common liquidity source, while funds are distributed across multiple borrowing markets with their own collateral rules. Each market operates independently, so a sharp drop in one collateral token should trigger liquidation only inside that market, not across every vault using the liquidity. That makes isolated collateral the core safety mechanism, replacing the older shared-pool logic that can spread losses when risky assets fail quickly.
Isolated Markets Change Risk and Yield
SBM V2 also changes how borrowing costs adjust. Instead of the jump model used in SBM V1, the protocol now uses an Adaptive Interest Rate Curve that shifts rates according to utilization. Low utilization pushes the curve lower to attract borrowers, while high utilization raises rates to encourage repayment. The goal is to maintain capital efficiency without constant manual parameter changes. That makes interest rates more responsive to market demand, aligning pricing with borrower behavior while reducing reliance on governance intervention every time liquidity conditions change across individual markets.
The practical effect reaches governance and depositor returns. Risk settings such as Liquidation Loan to Value Ratio, or LLTV, can now be configured by market, allowing a speculative meme-token market to carry tougher liquidation conditions without affecting conservative collateral elsewhere. Depositors receive yield from all markets where their Vault supplies liquidity, with interest distributed automatically. JustLend continues to rely on Chainlink price oracles, while JST holders oversee parameter changes through JustLend Improvement Proposals and community review. For now, the upgrade tests whether safer architecture attracts fresh capital, especially as users compare isolation guarantees across competing DeFi lending platforms in global markets.
