# King Arb Gold Euro

Statistical-arbitrage Expert Advisor for gold (XAUUSD) and the euro (EURUSD) using mean-reversion of the residual gap between the two.

Canonical: https://prismaticalgos.com/compendium/algo/9026-king-arb-gold-euro
Record ID: 9026
Catalog rank: 2814 (reading order, not performance)
Snapshot: 2026-10-31 15:46 UTC
Family: Risk, Money Management & Portfolio Overlays (J)
Source: https://www.mql5.com/en/market/product/182535
Evidence label (unverified): backtest_shown

## Scope and limitations

These are machine-extracted research records, not verified trading systems. Catalog rank measures specification detail and claimed evidence, not profitability. The catalog extraction pipeline did not independently backtest these records. Its separate selected testing ledger does not validate the wider corpus. Rules, labels and parameters can be incomplete or wrong; consult the original source and its reuse terms.

No endorsement, ownership claim or source-code reuse permission is implied.

## Extraction warnings

Opacity warnings: UNDEFINED ENTRY TERM: the entry conditions are prose naming a concept with no numeric definition, so two readers would implement them differently. Advisory only -- this does not affect the score.

## Recorded profile

- symbols: XAUUSD, EURUSD
- timeframes: M15
- sessions: any
- market_regime: volatile

## Indicators

No indicator stack recorded.

## Recorded long-entry rules

- zres_XAU minus zres_EUR is greater than EntryZ (2.0)

## Recorded short-entry rules

- zres_XAU minus zres_EUR is less than -EntryZ (-2.0)

## Recorded exit rules

- zres_XAU minus zres_EUR reverts to ExitZ (0.6) or StopZ (4.0) is hit

## Recorded filters

- UseDxyGate
- UseEuroGate
- TrendDeriskMult
- UseVolTarget
- MaxSpreadXAU
- MaxSpreadEUR

## Risk controls

- Stop loss: StopZ (4.0) is hit
- Take profit: ExitZ (0.6) is hit
- Position sizing: LotsXAU (0.10) - gold-leg lot size and the single leverage / return knob. The euro leg is sized automatically from the hedge ratio. Scale LotsXAU linearly to your balance (about 0.10 per 10,000 USD) and start small.