# Data Dictionary - US FTD × Fundamentals Squeeze Screener - daily, derived Parquet

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

| column | type | description |
|---|---|---|
| `zone` | str | Ticker |
| `ts` | timestamp (UTC) | Settlement date |
| `variable` | str | Metric |
| `value` | float | Value |
| `unit` | str | Unit (mixed) |
| `res_min` | int | Native resolution (daily) |

**Caveats:** FTD series are stamped by SEC settlement date, published semi-monthly ~2-4 weeks in arrears - shift FTD-derived columns by the publication lag in any backtest (look-ahead bias otherwise).

*Source: U.S. Securities and Exchange Commission (SEC).*