{
  "release": "2026-09-20",
  "track": "portfolio-rebalancing",
  "machine": "Apple M3, 8 logical cores, 24 GB RAM",
  "system": "macOS 26.5.2, arm64",
  "measurement": {
    "statistic": "median wall-clock runtime",
    "included": "portfolio construction, scheduled rebalancing, accounting, and result extraction",
    "excluded": "imports and synthetic price generation"
  },
  "semantics": {
    "allocation": "equal weight across all assets",
    "cash": "one shared cash account",
    "position_size": "whole shares",
    "fills": "rebalance-bar close",
    "initial_cash": 100000.0,
    "fees": 0,
    "slippage": 0
  },
  "correctness": "Every retained framework run matched oracle cash, final equity, and every asset holding at all 13 rebalance boundaries."
}