How the engine actually runs.
No discretion, no black box. Every cycle the engine reads the funding surface, passes each pair through hard gates, allocates across five books, hedges, harvests the funding and siphons profit to safety — on your own account, where you can watch it.
Six steps, every cycle.
Deterministic — the same inputs always produce the same trades. No discretionary or AI-driven decisions in the loop.
Your venue. Your keys. Our logic.
API access with trade permission only — withdrawals disabled at the key. We can place orders; we can’t take coins.
Capital never leaves your exchange account. No pooled wallet, no Onyx balance sheet between you and your funds.
If a venue degrades, the system alerts and can be flattened manually via the emergency stop; automated venue-failure de-risking is not built yet. Counterparty risk is real and disclosed, not hedged away.
Five books.
Designed to stop, not just to run.
Deploy, siphon, cap.
The engine works within a ceiling you set. As profit accrues, the siphonsweeps a chosen amount out of the working float into safety, so gains don’t ride at risk forever. Per-member allocation ceilings keep total deployed capital inside the strategy’s finite capacity.
Illustrative capacity caps, not an allowance — display-only and applied only when funded, after FCA authorisation. No prices are shown in the paper phase.
Why the record can be trusted — and why seats are finite.
The shadow record runs on live prices with look-ahead and survivorship controls, and is net of fees, funding and modelled slippage — not a frictionless curve.
Carry thins as size grows, so seats and ceilings are capped on purpose. We’d rather stay small and consistent than scale the edge away.
Raw data, OOS windows and the full methodology — once your investor category is verified.
Capital at risk. Onyx is a non-custodial automation service for certified sophisticated & professional investors — it operates your own exchange account under trade-only keys; it is not a deposit, not FSCS-protected, and not investment advice. The engine is deterministic but cannot remove market, venue, liquidation or regulatory risk. Past simulated performance is not a guide to future results.