# execution/ - 1,351 Lines

Order fill execution and market impact.

## Modules

| File | Lines | Purpose |
|------|-------|---------|
| fill_executor.py | 539 | Fill simulation, slippage, commission |
| rebalancer.py | 401 | Portfolio rebalancing |
| impact.py | 185 | Market impact models |
| limits.py | 186 | Order limits validation |
| result.py | 40 | Execution result types |

## Key

`FillExecutor`, `TargetWeightExecutor`, `RebalanceConfig`
