Grid Trader

Passive, structure-based liquidity strategy.

Best used when

price is range-bound or choppy
volatility is low to moderate
liquidity is decent
Hermes wants to harvest mean reversion inside a structure

Avoid when

trend is strong and persistent
event risk is high
liquidity is thin or chaotic
execution quality is poor

Core parameters

grid_levels: number of orders per side
grid_step_pct: spacing between levels
recenter_pct: when to rebuild the grid
volatility_timeframe: timeframe used for adaptive sizing
max_notional_per_order: per-order cap
fee_rate: fallback fee assumption

Hermes policy mapping

risk_posture adjusts grid spacing, levels, and recentering
priority adjusts aggressiveness and order cadence

Notes

The strategy does not decide regime fit itself.
Hermes decides activation.
Trader applies policy on reconcile.