# Data Dictionary - CFTC COT Quant Signals - positioning z-score, crowding & momentum, weekly Parquet

**Units:** vary by `metric` - read the per-row `unit` column (overall: mixed).  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | CFTC market & exchange name |
| `ts` | timestamp (UTC) | COT report week |
| `metric` | str | net_spec_z or net_spec_momentum_4wk |
| `value` | float | Metric value (z-score, or contracts for momentum) |
| `unit` | str | mixed - see metric |
| `res_min` | int | Native resolution (weekly = 10080) |

*Source: U.S. Commodity Futures Trading Commission (CFTC).*