# Data Dictionary - Hyperliquid Perp Daily Market Summary - OHLC, funding, OI & volume, cleaned Parquet

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

| column | type | description |
|---|---|---|
| `zone` | str | Coin (perp ticker) |
| `ts` | timestamp (UTC) | Day (bar start) |
| `metric` | str | mark_open / mark_high / mark_low / mark_close / funding_apr_pct_mean / open_interest_mean / day_ntl_vlm_close |
| `value` | float | Metric value. Units: mark_*=USD, funding_apr_pct_mean=annualised %, open_interest_mean=coins, day_ntl_vlm_close=USD |
| `unit` | str | mixed - see metric |
| `res_min` | int | Native resolution (daily = 1440) |

*Source: Hyperliquid (on-chain perpetual DEX) - public asset-context data.*