Adding Support for Gemini GUSD

Hi Compound community,

I recently submitted an application to onboard Gemini’s GUSD stablecoin as a collateral asset to the MakerDAO protocol, as well as an initial proposal to add support with Aave. I think that GUSD could also be a worthy addition to Compound.

Some details about GUSD:
GUSD is issued by Gemini Trust Company, LLC, a New York state based trust company. The fiat USD corresponding to issued GUSD is held by State Street Bank and Trust Company (NYSE:STT). Monthly accounting examinations are performed by BPM, LLP. GUSD was launched in September 2018 and for a time was one of the largest stablecoins with over $100M circulating at its peak. The circulating supply of GUSD has since declined as it was dwarfed by USDC, USDT and other stablecoins with wider trading and defi usage. The supply of GUSD is currently ~$10.5M, having grown from a trough of ~$4M at the end of 2019.

Whitepaper: https://gemini.com/static/dollar/gemini-dollar-whitepaper.pdf
Website: https://gemini.com/dollar
Twitter: https://twitter.com/Gemini
Source Code: https://github.com/gemini/dollar
GUSD token contract: https://etherscan.io/token/0x056fd409e1d7a124bd7017459dfea2f387b6d5cd
Accountant’s reports at bottom of page: https://gemini.com/dollar#reports
Trail of bits contract audit: https://gemini.com/static/dollar/gemini-dollar-trailofbits-audit.pdf

Liquidity:
GUSD can be exchanged for USD at a fixed 1:1 rate on the Gemini exchange. I have personally tested this out with good results: withdraw of GUSD from Gemini exchange was sent within 1 minute using fast gas, and deposit back into Gemini was credited within ~17 block confirmation. It should be possible for liquidators (who are willing/able to KYC) to flip GUSD collateral directly through Gemini for the time being. GUSD also has a few trading pairs on other centralized exchanges such as OKEx, HitBTC, and ZB. I plan on submitting a proposal to create a GUSD Curve pool in the near future as well, if this is supported by veCRV voters the on-chain liquidity for GUSD should improve substantially.

Benefits for Compound:

  • Diversification of centralized assets: GUSD relies on a different issuer and custodian compared to USDC, TUSD, USDT, or BUSD. Credit, custody, or regulatory risks may be less correlated across these assets, which could reduce risk to Compound.
  • New DeFi on/off ramp: Gemini has good linkage with US bank wire and ACH networks, comparable to Coinbase as a fiat ramp.

Coinbase has an outsize influence over Defi through its association with USDC and primacy in regulated crypto trading. I think Compound could benefit long term from more diversity in the regulated exchange and stablecoin space.

++ onboarding proposal for Curve

Everyone WANTS their token listed on the platform. The Solutino is simple! Create a proposal that we can all vote on. Ofcoruse it requires a minimum ownership or purchase of shares to do this, which is good for all of us.

I will repeat the same thing I said in Aave forum. I am in support of adding GUSD.

I would also like to ask the twins to list Comp on Gemini and support more DeFi tokens on their exchange :slight_smile: @monet-supply

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Compound is now live on Gemini as of 9/11/20. https://gemini.com/blog/paxg-amp-and-compound-available-on-gemini

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