[FIP-01] Adding USDT Support; Setting Stablecoin Collateral Factor to 0%

We hereby propose that Flux Finance adds support for Tether (USDT) as a lendable asset only. Tether is the most popular stablecoin with a market capitalization of over $68 billion, representing a large market of investors who may be looking for a low risk, liquid, on-chain yield offering like Flux Finance. If our proposal passes, investors would be able to lend and borrow USDT over-collateralized against US Treasuries exposure (OUSG).

We also suggest setting the collateral factor for all stablecoins supported at Flux to 0%, including USDT, USDC, and DAI, making OUSG (Ondo Short-Term U.S. Government Bond Fund) the only acceptable collateral. This will ensure that lenders of a particular stablecoin don’t take on indirect risk from other stablecoins supported at Flux. The main reason to post stablecoins as collateral is to short cryptoassets and other stablecoins—use cases already well serviced by existing lending protocols like Compound, Aave, and Euler. We believe Flux should remain differentiated in facilitating lending against real world assets in order to bridge yield from treasuries and other low-risk traditional assets to the on-chain economy.

We recommend the following market parameters:


  • Interest rate curve that follows the one used on DAI and USDC:
    • 0% utilization → 0% APY
    • 90% utilization (kink) → Overnight Benchmark Funding Rate (OBFR) - 50 bps
    • 100% utilization → OBFR + 300bps
  • Borrow Cap: No cap
  • Collateral Factor (LTV): 0%
  • Reserve Factor: 0%

Mandatory parameters with no impact given the 0% collateral factor

  • ProtocolSeizeShare: 1.75% (Compound V2 uses 2.8%)
  • Liquidation Incentive: 5% (Compound V2 uses 8%)


  • Collateral factor (LTV): 0%

We look forward to engaging with the community on this proposal.


This is a good idea, it is worth thinking about other reliable coins.

Absolutely worth adding the most utilised stablecoin.

100% in support. I think it’s great to see Flux open up the game in terms of starting a standard for possible adding new collateral to the Flux Finance money market.

USDT feels like even a better choice now in the light of recent news, where USA-based stablecoin issuers are facing a very very scary wave of regulatory uncertainty.

I can already see the possibilities of other coins. Decentralised DAI competitors would probably love to boost the yields on Flux in return for accepting their stables as collateral. Will save further speculation to other threads.

This seems to make a lot of sense.

Excellent idea… the proposal speaks so well about the teams vision

1 Like

Looks like a good plan

Très bonne idée

Belle proposition

It’s a good one. Let’s get it done

agree, I vote for this

Great! I will vote for this.

Belle proposition! Doy mi voto por ella! :heart: