Sowdex — the index atelier Robinhood Chain · testnet Folio Nº 3 · MMXXVI

Sow once.
Own the whole index.

Sowdex mints weighted, leveraged baskets of stocks, ETFs and crypto as a single ERC-20 share — live on Robinhood Chain, the tokenized-assets L2. You hold the share; the atelier keeps the books — marking every leg to market, rebalancing the drift, settling the fees. Gas is ETH, collateral is WNT. Growth is everything else.

Baskets deployed
Backstop pool
WNT
Pool utilization
×
Price registry
7 feeds · 300 s heartbeat
The registry
BTC
ETH
NVDA
TSLA
AAPL
SPY
QQQ
Nº 01

Three entries explain the whole house.

What a share becomes

Sowdex keeps an atelier's vocabulary because that is exactly what the protocol is: a measured basket, a tradable share, and a floor that keeps the accounts honest. No discretionary managers, no signature chains — just weights, bands and NAV.

OneThe basket
A surveyed set of markets — 2 to 8 legs, explicit weights, a leverage target between 1.0× and 3.0×, and the rebalance band that keeps it honest. Declared once at minting; immutable afterwards, except where governance narrows it.
TwoThe share
The ERC-20 that proves your share of a basket. Minting strikes shares at NAV; redeeming burns them at NAV. Transferable, listable, composable — the strategy is the token.
ThreeThe floor
The ground every basket stands on: an oracle registry marking each leg to market, a counterparty pool underwriting the leverage, and a backstop that absorbs bad seasons in a published order — never at discretion.
Nº 02

The baskets, read live from the chain.

RPC · public · no wallet needed

Every basket on the floor, straight from the vault contracts — leverage against target, NAV per share, state and oracle freshness. Pick one and operate it at the Desk.

BasketLeverage act / tgtNAV / shareStateOracles
Reading chain…

Minted at NAV · redeemed at NAV · states are deterministic health() outcomes, never an operator's call

“You hold the share.
The strategy is the token.

The Sowdex thesis
Nº 03

From ETH to yield in four cuts.

No discretion in between
01

Compose

Pick 2–8 legs from the price registry, set weights that sum to 100% (no single leg above 50%), and choose a leverage target from 1.0× to 3.0×. The composer refuses anything outside the bands — weights, leverage, leg count, all checked on-chain.

02

Mint

The basket compiles to a vault contract. Wrap native ETH, deposit, and the vault strikes shares at the current NAV per share. No lockup, no whitelist, no signature — two transactions on first mint: approve, then deposit.

03

Keep

Keepers watch the drift. When actual leverage strays 0.25× from target, anyone may rebalance for a fixed bounty. Oracles mark every leg on a 300-second heartbeat; one stale leg halts the whole floor, not just one basket — failure is loud, not quiet.

04

Redeem

Burn any amount of shares at NAV, any time. Exit terms are declared at minting and can only improve. Selling the share is exiting the strategy — nothing settles off the record.

Nº 04

The arithmetic, before you sow.

A worked example · not a forecast

Ten wrapped ETH walk the full path — deposit, entry fee, shares struck at NAV, target exposure. Every number below is a declared parameter, not a projection; nothing here depends on an operator behaving well.

01 · Deposit
10.0000 WNT — wrapped native ETH
02 · Entry fee
10 bps 0.0010 WNT to the FeeVault
03 · Minted
9.9990 shares struck at NAV 1.0000
04 · Target exposure
2.00× on a BTC·ETH-style basket
Entry10 bps
Exit10 bps
Management1% / yr
Performance10% over HWM

Fees accrue per second, performance by the dilution method over a high-water mark · each bound is hard-capped on-chain (≤ 50 / ≤ 20 / ≤ 2 bps×100)

Nº 05

The fine print, without the fine print.

Every number · one table
ParameterDefaultBound
Weight constraintΣ|wᵢ| = 100%single leg ≤ 50% · long-only in Phase 1
Legs per basket2 – 5hard cap 8
Target leverage1.0× – 3.0×creation refused above 3.0×
Rebalance trigger|L_actual − L_target| ≥ 0.25×permissionless · keeper-bountied
Emergency deleverageL_actual ≥ 3.25×anyone may call
Soft liquidationNAV ≤ 15% of entry
Entry / exit fee10 bps / 10 bpseach ≤ 50 bps
Management fee1% / year≤ 2% · accrues per second
Performance fee10% over high-water mark≤ 20% · dilution method
Oracle heartbeat300 s (testnet)any stale leg → protocol halt
Deposit assetWNT — wrapped native ETH18 decimals · protocol unit of account
Gas tokenETH (native)~0.01 gwei typical
Nº 06

Draft a basket yourself.

Interactive · runs locally

This is the exact shape the on-chain composer accepts. Step the weights in 5% increments, pick a leverage target, and read the verdict — every rule here is enforced by the factory, not by a frontend promise.

Basket draft Σ|w| must equal 100% Σ|w| ≠ 100%

Weights shown as 5% cells · demo only — nothing is signed or sent

Nº 07

Who stands under the leverage?

The floor, in three answers
UnderwritingThe counterparty pool
Liquidity providers deposit WNT and underwrite the synthetic exposure every basket runs on. Leverage never comes from borrowed assets or an off-book desk — it comes from the pool, priced by utilization, visible on this page in real time.
Bad seasonsThe backstop
When a basket lands badly, losses absorb in a published order — fees first, then the pool's buffer — never at an operator's discretion. The order is declared in the contracts and cannot be rearranged after the fact.
BookkeepingAnyone, for a bounty
Rebalances and emergency deleverages are permissionless calls with fixed bounties. There is no privileged keeper to bribe or wait for — the floor keeps itself, one bounty at a time.
Nº 08

Three seasons, on the record.

Roadmap · v0.2
Season I

Testnet MVP

Six non-upgradeable contracts on Robinhood Chain 46630, two demo baskets, seven mock feeds on a 300 s heartbeat, permissionless rebalances with bounties.

Live now
Season II

Depth

Short weights, liquidation incentives, fuzz and simulation reports published with the dossier, Chainlink stock and ETF feeds mapped to the registry.

Season III

Mainnet review

Compliance assessment, audited contracts, position limits ramp, and the $SOWX utility evaluated against the checklist before anything ships.

Nº 09

Asked, answered.

Six questions · straight answers
Q·01What exactly do I hold?+
An ordinary ERC-20 — the share token of one basket vault. Minting strikes it at NAV, redeeming burns it at NAV, and in between it is transferable, listable and composable like any token. The weighted, leveraged strategy is the token; there is no separate claim to sign.
Q·02Where does the leverage come from?+
From the counterparty pool, not from borrowed assets. Exposure is synthetic: the pool underwrites it against margin, and actual leverage is measured from NAV and margin on every health check. A 0.25× drift from target triggers a permissionless rebalance; 3.25× triggers emergency deleverage — anyone may call either, for a bounty.
Q·03What if an oracle goes stale?+
Every feed must beat a 300-second heartbeat (testnet value). The moment any leg goes stale, the whole floor halts — mints, redeems and rebalances included — until freshness returns. Failure is designed to be loud and total, never partial or quiet.
Q·04Can the terms change after I mint?+
Weights, bands and exit terms are declared at minting and immutable afterwards. Governance can only narrow parameters within hard caps — it can never widen fees, raise leverage past the ceiling, or touch your redemption at NAV.
Q·05What does it cost?+
Entry 10 bps, exit 10 bps, management 1% per year accruing per second, performance 10% over a high-water mark by dilution. Each is bounded on-chain — 50 / 50 / 200 / 200 bps-equivalent ceilings — and the schedule is identical for every basket.
Q·06Is this audited? Is there a mainnet?+
No and no. Sowdex today is an experimental, unaudited testnet MVP on Robinhood Chain 46630 with mock price feeds. Treat every number on this site as a demonstration; leveraged baskets can lose all deposited capital, and nothing here is investment advice.

The floor is set on Robinhood Chain.

Network
Robinhood Chain Testnet — Arbitrum Orbit L2 · chain 46630 · gas in native ETH
Contracts
15 deployments — 6 core contracts, 7 mock feeds, 2 demo baskets · non-upgradeable
Price feeds
7 mock feeds (BTC, ETH, NVDA, TSLA, AAPL, SPY, QQQ) · 300 s heartbeat · Chainlink path mapped
Baskets
MIX2X (BTC 50 / ETH 50, 2×) and TECH3X (NVDA 40 / TSLA 30 / SPY 30, 3×) live · backstop pool seeded with WNT
Next season
Short weights, liquidation incentives, fuzz & simulation reports

Sowdex is experimental software on a public testnet. Contracts are unaudited. Leveraged baskets can lose all deposited capital. Nothing here is investment advice.