PREVIEW / etf_30min / 2025-10-21
file: by_date/etf_30min/2025/2025-10-21.parquet size: 1.0 MB rows: 44,144
schema
timestamp TIMESTAMP symbol VARCHAR asset_type VARCHAR open DOUBLE high DOUBLE low DOUBLE close DOUBLE volume DOUBLE
sample rows
| timestamp | symbol | asset_type | open | high | low | close | volume |
|---|---|---|---|---|---|---|---|
| 2025-10-21 04:00:00 | SPY | ETF | 671.33 | 671.33 | 670.4 | 670.57 | 28591.0 |
| 2025-10-21 04:30:00 | SPY | ETF | 670.57 | 670.73 | 670.5 | 670.54 | 25664.0 |
| 2025-10-21 05:00:00 | SPY | ETF | 670.55 | 670.93 | 670.5 | 670.93 | 24059.0 |
| 2025-10-21 05:30:00 | SPY | ETF | 670.82 | 671.16 | 670.82 | 670.91 | 7150.0 |
| 2025-10-21 06:00:00 | SPY | ETF | 670.93 | 670.99 | 670.61 | 670.83 | 10500.0 |
| 2025-10-21 06:30:00 | SPY | ETF | 670.9 | 671.19 | 670.89 | 671.15 | 8340.0 |
| 2025-10-21 07:00:00 | SPY | ETF | 671.15 | 671.68 | 671.05 | 671.68 | 36553.0 |
| 2025-10-21 07:30:00 | SPY | ETF | 671.65 | 671.8 | 671.3 | 671.7 | 98727.0 |
| 2025-10-21 08:00:00 | SPY | ETF | 671.04 | 671.824 | 670.5296 | 671.72 | 74653.0 |
| 2025-10-21 08:30:00 | SPY | ETF | 671.7 | 671.73 | 671.31 | 671.41 | 87414.0 |
| 2025-10-21 09:00:00 | SPY | ETF | 671.42 | 671.5878 | 670.86 | 671.43 | 127038.0 |
| 2025-10-21 09:30:00 | SPY | ETF | 671.46 | 671.78 | 670.15 | 670.57 | 4716835.0 |
| 2025-10-21 10:00:00 | SPY | ETF | 670.56 | 671.9 | 669.981 | 670.6 | 3683864.0 |
| 2025-10-21 10:30:00 | SPY | ETF | 670.59 | 672.64 | 670.26 | 672.57 | 3069424.0 |
| 2025-10-21 11:00:00 | SPY | ETF | 672.58 | 672.7313 | 671.535 | 671.9 | 2849320.0 |
| 2025-10-21 11:30:00 | SPY | ETF | 671.9 | 672.515 | 671.4 | 672.28 | 2058733.0 |
| 2025-10-21 12:00:00 | SPY | ETF | 672.27 | 672.69 | 672.14 | 672.63 | 1927166.0 |
| 2025-10-21 12:30:00 | SPY | ETF | 672.65 | 672.99 | 671.355 | 671.49 | 3260527.0 |
| 2025-10-21 13:00:00 | SPY | ETF | 671.51 | 672.16 | 670.76 | 671.61 | 2821411.0 |
| 2025-10-21 13:30:00 | SPY | ETF | 671.625 | 672.31 | 671.25 | 672.205 | 1455523.0 |
| 2025-10-21 14:00:00 | SPY | ETF | 672.21 | 672.52 | 671.78 | 672.28 | 1884326.0 |
| 2025-10-21 14:30:00 | SPY | ETF | 672.28 | 672.43 | 671.795 | 671.95 | 1449413.0 |
| 2025-10-21 15:00:00 | SPY | ETF | 671.94 | 672.27 | 671.69 | 671.905 | 2052289.0 |
| 2025-10-21 15:30:00 | SPY | ETF | 671.9 | 672.4 | 671.16 | 671.27 | 5316373.0 |
| 2025-10-21 16:00:00 | SPY | ETF | 671.26 | 672.0 | 670.5198 | 671.0 | 2063702.0 |
| 2025-10-21 16:30:00 | SPY | ETF | 671.11 | 671.33 | 671.01 | 671.24 | 232000.0 |
| 2025-10-21 17:00:00 | SPY | ETF | 671.0962 | 671.28 | 670.88 | 671.0 | 98169.0 |
| 2025-10-21 17:30:00 | SPY | ETF | 671.0 | 671.46 | 670.97 | 671.22 | 24304.0 |
| 2025-10-21 18:00:00 | SPY | ETF | 671.28 | 671.7 | 671.2127 | 671.6 | 54185.0 |
| 2025-10-21 18:30:00 | SPY | ETF | 671.59 | 671.69 | 671.33 | 671.48 | 8663.0 |
| 2025-10-21 19:00:00 | SPY | ETF | 671.5 | 671.5 | 671.08 | 671.24 | 16099.0 |
| 2025-10-21 19:30:00 | SPY | ETF | 671.23 | 671.29 | 670.95 | 671.03 | 18492.0 |
| 2025-10-21 04:00:00 | QQQ | ETF | 611.78 | 611.78 | 610.58 | 610.73 | 46943.0 |
| 2025-10-21 04:30:00 | QQQ | ETF | 610.71 | 611.01 | 610.68 | 610.81 | 47912.0 |
| 2025-10-21 05:00:00 | QQQ | ETF | 610.84 | 611.38 | 610.81 | 611.35 | 46523.0 |
| 2025-10-21 05:30:00 | QQQ | ETF | 611.29 | 611.52 | 611.15 | 611.17 | 55313.0 |
| 2025-10-21 06:00:00 | QQQ | ETF | 611.2 | 611.3 | 610.65 | 611.0 | 63844.0 |
| 2025-10-21 06:30:00 | QQQ | ETF | 611.01 | 611.31 | 610.84 | 611.12 | 63819.0 |
| 2025-10-21 07:00:00 | QQQ | ETF | 611.12 | 611.78 | 611.02 | 611.78 | 34725.0 |
| 2025-10-21 07:30:00 | QQQ | ETF | 611.74 | 611.86 | 611.33 | 611.83 | 98659.0 |
| 2025-10-21 08:00:00 | QQQ | ETF | 611.12 | 612.28 | 610.7 | 611.86 | 215357.0 |
| 2025-10-21 08:30:00 | QQQ | ETF | 611.84 | 611.89 | 611.42 | 611.61 | 187807.0 |
| 2025-10-21 09:00:00 | QQQ | ETF | 611.59 | 611.75 | 610.97 | 611.61 | 207189.0 |
| 2025-10-21 09:30:00 | QQQ | ETF | 611.63 | 611.72 | 609.5412 | 610.03 | 4010360.0 |
| 2025-10-21 10:00:00 | QQQ | ETF | 610.04 | 611.3 | 609.35 | 609.73 | 2897908.0 |
| 2025-10-21 10:30:00 | QQQ | ETF | 609.72 | 611.69 | 609.32 | 611.6 | 1827379.0 |
| 2025-10-21 11:00:00 | QQQ | ETF | 611.61 | 611.7199 | 610.251 | 611.0387 | 1688627.0 |
| 2025-10-21 11:30:00 | QQQ | ETF | 611.05 | 612.25 | 610.605 | 612.15 | 1666954.0 |
| 2025-10-21 12:00:00 | QQQ | ETF | 612.14 | 612.61 | 611.99 | 612.48 | 1504836.0 |
| 2025-10-21 12:30:00 | QQQ | ETF | 612.4919 | 612.7213 | 611.055 | 611.24 | 1851289.0 |
> showing 50 of 44,144 rows — these rows as CSV