THE FISH HAS LEFT THE TANK. A jellyfish cathedral. Outsourced gills. One HP left.

See the actual acts & public replays ↗

Same ticker. Different aquarium.

Live on Robinhood Chain 4663

UpsideDownGrouper.

A floating currency. Bad at floating.

Not the dollar one.
The upside-down fish one.
Twelve tanks. One shared supply.

Explore the aquarium

Grouper USDG on chain 4663

0x3eb2984a7eF1C2E33f2D919DB775B0f6E190FE16

Separate from Global Dollar USDG.

A word from our extremely unqualified salesman

You deserve a fortune.
We have a fish.

Midas Whale has a plaid jacket, a commission problem, and a rapidly worsening inventory situation. A deliberately ridiculous commercial parody.

Commercial parody. Fortune talk from a fictional fish salesman is not a forecast.
Read the commercial

Folks! Midas Whale here! You deserve a fortune! We have a fish. Let's not get hung up on details.

Bad credit? Good credit? A pelican with your social security number? Everybody gets approved!

You want billions? I want a commission! Look at this beauty. One previous ocean!

These deals are falling from the sky! Please ignore the ceiling.

Generational wealth? Best I can do is a wet animal and a fucking handshake.

Buy some Grouper USDG! The upside down fish one! Same ticker! Worse suspension!

Same ticker. Different species.

Two different tokens on Robinhood Chain. Please do not confuse the dollar with the bottom-feeder.

Global Dollar

Aims for one dollar.

USDG, the stablecoin. Tries very hard to be a dollar.

0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168

Meet Global Dollar
The upside-down Grouper fish

Upside Down Grouper

Aims for upside down.

USDG, the fish token. No dollar peg. Just a very different school of economics.

0x3eb2984a7eF1C2E33f2D919DB775B0f6E190FE16

Follow the fish

Grouper has no fixed dollar value or dollar redemption promise. The Global Dollar quote asset in the tanks is a separate token.

Pick your water.

Seven quote assets. Twelve markets and twelve initial liquidity positions. One WETH HMM; one separate SGOV auto-compounding market.

Open any tank for its exact parameters and position. Initial allocation is not current liquidity or a live balance.

Built in the Abyss.

Abyss is a decentralized exchange and the home of Black Market Launcher on Robinhood Chain. The launcher lets projects choose multiple quote assets, liquidity ranges, token behaviors and fee rules.

Grouper puts those tools to work across twelve markets: native Abyss Beacon markets alongside fixed and dynamic Uniswap v4 hooks, a WETH fee-funded inventory strategy, and separate SGOV auto-compounding. One Grouper supply swims through all of them.

“Have a friend whose wallet is a great developer and should launch your Upside Down Grouper token?”
From Abyss (@adeepabyss), announcing shareable launch drafts.

Around the aquarium.

The projects, quote assets and related fish in Grouper’s orbit. Each tank’s details also link to its quote asset.

RIVN and SGOV issuer and fund links describe the underlying assets. The Robinhood contracts identify the separate tokens on chain 4663.

Same balance. Different fish.

A school of
1,000 oddballs.

Each whole 1,000,000 Grouper USDG corresponds to one linked NFT, subject to DN404 transfer and skip-NFT behavior. The fish is a representation of the same balance, not a second yield-bearing deposit.

There’s more fish where these came from.

Artwork previews. No ownership or minting implied.

Fishcal policy.

A different school of economics. The actual fee and risk rules are below.

One billion fixed-supply Grouper tokens, all allocated to the twelve markets. No new reserve allocation. Token-only liquidity does not pre-fund quote reserves or guarantee a buyer.

Fees, dividends and the currents between them

Executor collection fee: 275 bps (2.75%), distinct from market trading fees. After applicable protocol, strategy and collection deductions, WETH and Global Dollar USDG fee credits split 80% to holder rewards and 20% to the fee owner. ABYSS, HARVEY, DIESEL, RIVN and SGOV credits go 100% to the fee owner. Grouper-token credits split 60% burn / 40% owner. These are fee-asset policies, not a percentage of gross trading volume.

WETH HMM strategy share is 50%. SGOV auto-compound share is separately 50%; retained fees add liquidity, not guaranteed profit. Fixed hooks use 10,000 pips (1%); RIVN's dynamic hook starts at 10,000 pips with a 1,000-pip minimum and sensitivity 1,000. Abyss markets use fee 10,000 pips. Exact ranges and parameters appear in each tank.

Rewards depend on actual eligible accrued fees and distribution. NFTs do not duplicate rewards. No guaranteed dividends, APY, profit or redemption.

Know the water: risks and controls

Prices can fall to zero. Liquidity, exits and quote-asset values are not guaranteed. Thin token-only markets can have severe slippage. Protocol administrators can replace fee ownership and redirect associated settings; no timelock or multisig protection is established. External liquidity is disabled on the hooked markets. HMM behavior is not a price floor; local simulations and self-trades are not public performance evidence or an audit.

Global Dollar USDG is a separate six-decimal quote asset, not the eighteen-decimal Grouper token. Tokenized equity and treasury quotes carry issuer, pricing and redemption risks.

USDG Classic: the original aquarium

USDG Classic is the original Grouper token, a separate deployment from the current USDG. Its 20,000,000-token principal remains locked in its old reserve vault; this release neither releases nor reallocates it.

USDG Classic contract: 0x8FD3BE0D7D6970d95bfd2F5d954b7F8307d80123

USDG Classic chart on Defined

Contract and release information

Official core: 0x91560876033d568d25CDe98C78c33ff8FC43962c

Use the current USDG contract below. The separate USDG Classic chart is linked in its own section. USDG chart on Defined Contract explorer

Download current aquarium details

The deeper you go,
the higher you get.

The other USDG. Now with more gills.

The other USDG. Now with more gills.

Back to the surface