What it is
Five modules share one risk engine and one stablecoin rail: Maddox Vaults, Hedge Engine, Agentic Desk, Structured Notes, and a prime-style account layer. Cash, collateral, limits, and settlement write to the same ledger.
Built on Circle Arc · Mainnet 16 September 2026
When hedging meets deterministic settlement.
HMaddox is a programmable hedging and adaptive liquidity protocol for treasuries, funds, payment firms, and AI agents. Risk is unpacked, priced, transferred, and settled in USDC — on a chain where finality is a fact, not a probability.
The protocol
A risk operating system, not another casino.
Onchain finance already knows how to add leverage. It still struggles to produce a bill a CFO can sign. HMaddox exists to make hedges, idle cash, and agent mandates live in one auditable state machine.
What it refuses
- No growth model built on extreme retail leverage.
- No token narrative that substitutes for hedge quality.
- No attempt to be every market on day one.
The name
HM
Hedge Markets. High-precision markets. Infrastructure that treats the hedge as a first-class primitive.
M
Maddox, from Welsh: fortunate son. Durable fortune is not a lucky direction. It is uncertainty unpacked, marked, and sold.
Settlement layer
Why this has to run on Arc.
Arc opened public mainnet on 16 September 2026 with USDC as gas, Malachite BFT finality, EVM compatibility, optional privacy, and a validator set drawn from global financial institutions.
Budgetable fees
Costs are priced in dollars. Month-end reconciliation does not depend on a speculative gas token.
Final means final
A hedge that can still be reorganized is only an intention. Arc makes settlement binary: pending or done.
Visible enough
Institutions do not need to vanish. They need graded disclosure: auditable amounts, protected strategy detail.
Stack
Five modules. One account state.
01 · Maddox Vaults
Adaptive USDC and EURC containers with hedging constraints. Base liquidity, controlled overlay, and a hedge layer that sends breaches to the engine. Yield without a hidden second book.
02 · Hedge Engine
Users and agents input a risk state, not a ticker. The engine routes, solves constraints, executes, and writes attribution back to the same account.
03 · Agentic Desk
Mandates, limits, failure handling, and accounting for software agents. Speed without an unsupervised leverage spiral.
04 · Structured Notes
Eligible issuance of settleable structures on stablecoin rails. If the risk engine cannot measure it, it does not ship.
05 · Prime-style accounts
Cash, vault shares, hedges, notes, in-flight funds, agent permissions, and daily quality reports in one view. Finance, trading, compliance, and agents read different skins of the same state.
Audience
Built for production funds, not launch-day heat.
Treasuries
Cross-border firms that receive dollars, pay euros, and need next month’s cost locked without a surprise gas bill.
Payments
Acquirers managing intraday currency mismatch. Inventory control, not speculation.
Agents
Automated commerce that can contract and settle only if limits and reconciliation exist first.
Access
Phase one is deliberately narrow.
USDC/EURC vaults and standardized FX hedges against corporate cashflows. The first success metric is not TVL. It is ten production treasuries and a reconciliation file a human can read.
access@hmaddox.xyzHMaddox is a protocol concept designed for Circle Arc. Network facts referenced from public Arc materials. This page is not an offer of securities or investment advice.