MERIDIAN
Live on Robinhood Chain testnet

Robinhood democratized buying stocks.
We democratize creating ETFs.

Neutral, non-custodial infrastructure for tokenized ETFs that work 24/7.
What you get

Create a 24/7 ETF, get in and out any hour.

In-kind

No price needed

Redeem the real constituents anytime. Instant, cannot be drained, never pauses.

S&P 500Nasdaq 100Dow
Cash, forward

One USDG, exact

A market-maker filler delivers the basket; settles at the next real open, never on a guess.

Vanguard 500Fidelitymutual funds
Cash, instant

One USDG, now

Settle immediately at the 24/7 NAV, within a safety buffer so the estimate only has to be roughly right.

TQQQGoldleveraged
Why 24/7 is hard

Your ETF trades 24/7.
Its market does not.

Anyone can now create a fund in one click. But a fund that trades around the clock hits a wall: its market is closed ~80% of the week, and that leaves two bad answers.

Stale ghost price

exploitable. Arbitrageurs drain the fund.

No value at all

safe, but defers the problem.

SAT
~80%of the week the market is closed
The hard part = the moat

We are not an oracle. We are the layer that tells the fund when a price is safe to use.

SAFE
marketStatus  OPEN
feed age      0h
band width   ±0.4%
action        settle
A mint button is cloned in a weekend. A safe 24/7 engine is not.
The evidence

We did not assume the gap.
We measured it.

0.90%weekend median move, vs 0.67% on a weeknight (p90 3.01% vs 2.55%)
+5.04%TSLAx on the 10-13 Oct 2025 crash weekend; NVDAx +3.96%, Monday open confirmed
0.91correlation of the on-chain dislocation with the realised Monday open
The hard engineering

Making a real 500-name index fit on-chain.

Merkle recipe
13.6M → 721K

The recipe is a commitment, so a create or redeem touches only the names it moves. 500-name NAV verification, in gas.

ERC-6909 custody
0 external transfers

The vault is its own claim ledger. Create and redeem move nothing externally, so the 500-transfer wall is gone.

Permit2 + AP filler
1 sig, 1 token

One signature authorizes every pull; a market-maker filler lets anyone enter and exit in a single token.

Non-custodial by design

The creator clicks once.
The machinery sits with us.

Creator

One click

Pick holdings and weights, hit deploy. The fund is live on-chain. No sponsor, no capital.

Infrastructure

Pricing & safety

24/7 NAV, confidence band, safe flag, forward settlement. Non-custodial and neutral.

Market maker

The heavy lifting

Assembles the basket, fronts cash liquidity, fills single-token in / out, runs rebalance auctions.

The user never touches the complexity. Never custody, never a cut of flow.
Built, not a deck

Everything is open. Try to break it.

Deployed contracts, the live frontend and playground, the paper, the demo, the hacks, and the full docs. All from one place.

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