# Data Dictionary - US Net Liquidity Momentum Oscillator - derived Parquet

**Units:** all `net_liq_change_bn` values are in **USD bn (Δ ~2wk)**.  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | Always US |
| `ts` | timestamp (UTC) | Trading day |
| `net_liq_change_bn` | float | ~2-week change in net liquidity, $ billions |
| `unit` | str | Unit |
| `res_min` | int | Native resolution (daily = 1440) |

*Source: U.S. Department of the Treasury (Fiscal Data) & Federal Reserve Bank of New York.*