Euler Prime - enhancements for mTBILL

Summary

This proposal seeks approval to increase stablecoin utilization of Euler Prime by

  • Restricting mTBILL to only borrow against stablecoins
  • Increasing the supply cap of mTBILL on Euler Prime

This will help maximizing the utilization of stables market, ensuring stablecoin lenders to receive a minimum supply APY correlated with the TBILL rates.

Motivation

Midas aims to make investing accessible, global, and permissionless by bringing institutional-grade assets to the open web. The platform provides secure, compliant, and widely available investment opportunities.

mTBILL, issued by Midas, offers tokenized exposure to short-duration U.S. Treasury Bills, providing a low-risk, stable yield to its holders. mTBILL is an ERC-20 token that auto-compounds returns, making it ideal for use as collateral.

The mTBILL supply cap is currently limited on the Euler Prime market because of the risk of bad debt in the context of positions where non-USD-denominated assets are borrowed with mTBILL, due to the redemption delay of mTBILL when the instant redemption liquidity is not available.

By making mTBILL only used as collateral against stablecoin assets, the risk of bad debt is significantly reduced. As a result of this parameter update, the mTBILL supply cap could be increased, which would allow higher utilization of stablecoins like USDC and wM.

This would increase Euler’s TVL and be attractive, given the enhanced yield on the stable markets.

Risk parameters

Loan-to-values (LTVs)

LTVs would be set to 0 for all assets, except for stable assets, which would retain their current LTVs (USDC, wM, USDT, USDS, sUSDS).

Supply & borrow caps

mTBILL offers instant atomic redemptions in USDC, ensuring immediate liquidity, as well as USDC redemptions that are processed within two business days. Additionally, mTBILL is a permissionless token that can be liquidated without friction, ensuring smooth operations and removing the risk of bad debt. This ease of redemption makes mTBILL liquidity profile very attractive for lending protocols.

mTBILL’s price oracle is updated daily and requires both Midas and Ankura Trust (verification agent) to approve the update before it’s propagated on-chain, removing centralization. Midas and Ankura ensure that the mTBILL value accurately reflects the portfolio, bolstering trust and transparency for Euler Prime Lenders and the broader DeFi ecosystem.

Given the liquidity profile and the LTV, we are suggesting a supply cap unit of 15,000,000 mTBILL and the borrow cap to 6,000,000 mTBILL

Rewards

Midas subsidized the lending of USDC within Euler Prime in November 2024 by adding 10k USDC over Merkl.

If this proposal were to pass, Midas would be willing to add an extra $10k of stablecoin rewards for stablecoin lending in Euler Prime.

Governance

Given Euler’s recent move to an optimistic governance framework, no formal on or off-chain voting is required for this proposal to pass. However, we encourage the Euler DAO and community members to provide feedback, share suggestions, and voice their opinions on this initiative. Community input will, as always, be crucial to ensuring that the Euler Prime market remains relevant, competitive, and risk-managed.

Implementation

Unless any concerns are raised or the DAO would like more time for consideration of this proposal, the Prime market will be implemented by the Euler Foundation in 2 days’ time.