PREVIEW / etf_30min / 2025-08-14
file: by_date/etf_30min/2025/2025-08-14.parquet size: 1014 KB rows: 41,738
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 |
|---|---|---|---|---|---|---|---|
| 2025-08-14 04:00:00 | SPY | ETF | 644.56 | 644.84 | 644.54 | 644.82 | 6250.0 |
| 2025-08-14 04:30:00 | SPY | ETF | 644.85 | 644.85 | 644.51 | 644.58 | 5323.0 |
| 2025-08-14 05:00:00 | SPY | ETF | 644.52 | 644.86 | 644.49 | 644.86 | 3396.0 |
| 2025-08-14 05:30:00 | SPY | ETF | 644.87 | 644.95 | 644.73 | 644.78 | 5817.0 |
| 2025-08-14 06:00:00 | SPY | ETF | 644.75 | 644.86 | 644.52 | 644.52 | 5610.0 |
| 2025-08-14 06:30:00 | SPY | ETF | 644.54 | 644.7 | 644.46 | 644.58 | 2752.0 |
| 2025-08-14 07:00:00 | SPY | ETF | 644.56 | 644.82 | 644.48 | 644.82 | 10832.0 |
| 2025-08-14 07:30:00 | SPY | ETF | 644.84 | 645.19 | 644.7 | 645.13 | 45605.0 |
| 2025-08-14 08:00:00 | SPY | ETF | 644.47 | 645.21 | 643.9 | 644.88 | 87341.0 |
| 2025-08-14 08:30:00 | SPY | ETF | 644.92 | 644.97 | 641.4 | 642.6 | 2064509.0 |
| 2025-08-14 09:00:00 | SPY | ETF | 642.55 | 642.86 | 642.05 | 642.75 | 424882.0 |
| 2025-08-14 09:30:00 | SPY | ETF | 642.78 | 644.25 | 642.34 | 644.02 | 5784422.0 |
| 2025-08-14 10:00:00 | SPY | ETF | 644.02 | 644.615 | 643.7 | 644.24 | 2696680.0 |
| 2025-08-14 10:30:00 | SPY | ETF | 644.25 | 645.545 | 644.21 | 644.74 | 2972265.0 |
| 2025-08-14 11:00:00 | SPY | ETF | 644.74 | 644.79 | 642.96 | 643.335 | 2846397.0 |
| 2025-08-14 11:30:00 | SPY | ETF | 643.34 | 644.22 | 642.98 | 644.07 | 2532417.0 |
| 2025-08-14 12:00:00 | SPY | ETF | 644.04 | 644.09 | 642.665 | 643.09 | 2037355.0 |
| 2025-08-14 12:30:00 | SPY | ETF | 643.09 | 644.26 | 642.985 | 644.17 | 1504990.0 |
| 2025-08-14 13:00:00 | SPY | ETF | 644.16 | 645.05 | 644.09 | 645.0006 | 1679671.0 |
| 2025-08-14 13:30:00 | SPY | ETF | 645.01 | 645.06 | 644.25 | 644.71 | 1595121.0 |
| 2025-08-14 14:00:00 | SPY | ETF | 644.72 | 644.725 | 643.91 | 644.085 | 2391255.0 |
| 2025-08-14 14:30:00 | SPY | ETF | 644.07 | 644.95 | 643.95 | 644.6 | 2307817.0 |
| 2025-08-14 15:00:00 | SPY | ETF | 644.59 | 645.49 | 644.48 | 645.03 | 3068844.0 |
| 2025-08-14 15:30:00 | SPY | ETF | 645.03 | 645.62 | 644.84 | 644.94 | 6364852.0 |
| 2025-08-14 16:00:00 | SPY | ETF | 644.93 | 645.3974 | 644.2306 | 644.49 | 1963875.0 |
| 2025-08-14 16:30:00 | SPY | ETF | 644.5 | 645.09 | 644.45 | 645.07 | 474614.0 |
| 2025-08-14 17:00:00 | SPY | ETF | 645.09 | 645.12 | 644.8 | 644.8 | 66800.0 |
| 2025-08-14 17:30:00 | SPY | ETF | 644.86 | 644.95 | 644.83 | 644.92 | 12460.0 |
| 2025-08-14 18:00:00 | SPY | ETF | 644.95 | 645.329 | 644.77 | 645.06 | 29569.0 |
| 2025-08-14 18:30:00 | SPY | ETF | 645.09 | 645.28 | 645.0 | 645.25 | 4310.0 |
| 2025-08-14 19:00:00 | SPY | ETF | 645.28 | 645.49 | 645.28 | 645.32 | 9491.0 |
| 2025-08-14 19:30:00 | SPY | ETF | 645.3001 | 645.527 | 645.16 | 645.16 | 26616.0 |
| 2025-08-14 04:00:00 | QQQ | ETF | 580.15 | 580.28 | 580.09 | 580.28 | 7515.0 |
| 2025-08-14 04:30:00 | QQQ | ETF | 580.25 | 580.36 | 579.9 | 579.96 | 5030.0 |
| 2025-08-14 05:00:00 | QQQ | ETF | 579.92 | 580.22 | 579.82 | 580.19 | 10144.0 |
| 2025-08-14 05:30:00 | QQQ | ETF | 580.22 | 580.27 | 579.96 | 579.96 | 9740.0 |
| 2025-08-14 06:00:00 | QQQ | ETF | 580.0 | 580.11 | 579.86 | 580.04 | 3489.0 |
| 2025-08-14 06:30:00 | QQQ | ETF | 580.07 | 580.26 | 580.01 | 580.16 | 4535.0 |
| 2025-08-14 07:00:00 | QQQ | ETF | 580.2 | 580.58 | 580.05 | 580.53 | 18149.0 |
| 2025-08-14 07:30:00 | QQQ | ETF | 580.55 | 580.75 | 580.37 | 580.68 | 73003.0 |
| 2025-08-14 08:00:00 | QQQ | ETF | 580.14 | 580.88 | 579.35 | 580.61 | 103989.0 |
| 2025-08-14 08:30:00 | QQQ | ETF | 580.7 | 580.9 | 576.74 | 577.98 | 1209875.0 |
| 2025-08-14 09:00:00 | QQQ | ETF | 577.95 | 578.36 | 577.3 | 578.3 | 379330.0 |
| 2025-08-14 09:30:00 | QQQ | ETF | 578.28 | 580.8 | 577.91 | 580.19 | 5420145.0 |
| 2025-08-14 10:00:00 | QQQ | ETF | 580.2 | 580.6899 | 579.45 | 580.58 | 2388248.0 |
| 2025-08-14 10:30:00 | QQQ | ETF | 580.57 | 581.88 | 580.33 | 580.6822 | 2296106.0 |
| 2025-08-14 11:00:00 | QQQ | ETF | 580.68 | 580.79 | 578.45 | 579.04 | 2240868.0 |
| 2025-08-14 11:30:00 | QQQ | ETF | 579.04 | 580.34 | 578.66 | 580.1 | 2204332.0 |
| 2025-08-14 12:00:00 | QQQ | ETF | 580.09 | 580.15 | 578.46 | 578.94 | 1951511.0 |
| 2025-08-14 12:30:00 | QQQ | ETF | 578.93 | 580.55 | 578.93 | 580.46 | 1794104.0 |
> showing 50 of 41,738 rows — these rows as CSV