PREVIEW / etf_30min / 2025-08-15
file: by_date/etf_30min/2025/2025-08-15.parquet size: 985 KB rows: 40,446
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 |
|---|---|---|---|---|---|---|---|
| 2025-08-15 04:00:00 | SPY | ETF | 646.81 | 647.02 | 646.67 | 646.77 | 42723.0 |
| 2025-08-15 04:30:00 | SPY | ETF | 646.56 | 646.56 | 645.73 | 645.79 | 16612.0 |
| 2025-08-15 05:00:00 | SPY | ETF | 645.75 | 645.99 | 645.67 | 645.84 | 4380.0 |
| 2025-08-15 05:30:00 | SPY | ETF | 645.73 | 645.83 | 645.52 | 645.52 | 2210.0 |
| 2025-08-15 06:00:00 | SPY | ETF | 645.55 | 645.8 | 645.34 | 645.73 | 3951.0 |
| 2025-08-15 06:30:00 | SPY | ETF | 645.87 | 646.47 | 645.87 | 646.3 | 26795.0 |
| 2025-08-15 07:00:00 | SPY | ETF | 646.21 | 646.5 | 646.19 | 646.42 | 26866.0 |
| 2025-08-15 07:30:00 | SPY | ETF | 646.38 | 646.48 | 646.21 | 646.28 | 23547.0 |
| 2025-08-15 08:00:00 | SPY | ETF | 646.28 | 647.04 | 645.6 | 645.97 | 119480.0 |
| 2025-08-15 08:30:00 | SPY | ETF | 645.85 | 646.28 | 645.55 | 646.13 | 116157.0 |
| 2025-08-15 09:00:00 | SPY | ETF | 646.1 | 646.33 | 645.52 | 645.99 | 308928.0 |
| 2025-08-15 09:30:00 | SPY | ETF | 645.99 | 646.09 | 643.72 | 644.1 | 5125696.0 |
| 2025-08-15 10:00:00 | SPY | ETF | 643.78 | 644.65 | 643.21 | 644.21 | 3378535.0 |
| 2025-08-15 10:30:00 | SPY | ETF | 644.2 | 644.33 | 643.37 | 643.575 | 2229965.0 |
| 2025-08-15 11:00:00 | SPY | ETF | 643.58 | 644.28 | 643.26 | 643.478 | 2143389.0 |
| 2025-08-15 11:30:00 | SPY | ETF | 643.47 | 644.14 | 642.5153 | 643.415 | 3043453.0 |
| 2025-08-15 12:00:00 | SPY | ETF | 643.4 | 643.94 | 643.08 | 643.29 | 2148212.0 |
| 2025-08-15 12:30:00 | SPY | ETF | 643.295 | 644.28 | 643.295 | 644.0808 | 1812418.0 |
| 2025-08-15 13:00:00 | SPY | ETF | 644.08 | 644.2957 | 643.74 | 644.1654 | 1851424.0 |
| 2025-08-15 13:30:00 | SPY | ETF | 644.16 | 644.81 | 644.12 | 644.7708 | 1996129.0 |
| 2025-08-15 14:00:00 | SPY | ETF | 644.77 | 644.88 | 643.98 | 644.53 | 2699622.0 |
| 2025-08-15 14:30:00 | SPY | ETF | 644.52 | 644.64 | 643.81 | 644.26 | 2129682.0 |
| 2025-08-15 15:00:00 | SPY | ETF | 644.25 | 644.28 | 643.32 | 643.8 | 3179778.0 |
| 2025-08-15 15:30:00 | SPY | ETF | 643.8 | 644.13 | 643.13 | 643.44 | 6401568.0 |
| 2025-08-15 16:00:00 | SPY | ETF | 643.45 | 643.52 | 642.73 | 642.89 | 2191994.0 |
| 2025-08-15 16:30:00 | SPY | ETF | 642.86 | 643.09 | 642.81 | 643.09 | 107603.0 |
| 2025-08-15 17:00:00 | SPY | ETF | 643.08 | 643.09 | 642.85 | 642.95 | 127257.0 |
| 2025-08-15 17:30:00 | SPY | ETF | 643.0 | 643.1999 | 642.93 | 643.1999 | 12841.0 |
| 2025-08-15 18:00:00 | SPY | ETF | 643.24 | 643.4392 | 643.15 | 643.31 | 8416.0 |
| 2025-08-15 18:30:00 | SPY | ETF | 643.31 | 643.5699 | 643.31 | 643.5695 | 25784.0 |
| 2025-08-15 19:00:00 | SPY | ETF | 643.51 | 643.8 | 643.5 | 643.76 | 45222.0 |
| 2025-08-15 19:30:00 | SPY | ETF | 643.76 | 643.78 | 643.2294 | 643.2294 | 36987.0 |
| 2025-08-15 04:00:00 | QQQ | ETF | 580.45 | 580.84 | 580.42 | 580.47 | 8392.0 |
| 2025-08-15 04:30:00 | QQQ | ETF | 580.31 | 580.31 | 579.06 | 579.2 | 16012.0 |
| 2025-08-15 05:00:00 | QQQ | ETF | 579.22 | 579.5 | 579.11 | 579.34 | 6199.0 |
| 2025-08-15 05:30:00 | QQQ | ETF | 579.36 | 579.41 | 579.15 | 579.17 | 8042.0 |
| 2025-08-15 06:00:00 | QQQ | ETF | 579.05 | 579.39 | 578.91 | 579.35 | 6591.0 |
| 2025-08-15 06:30:00 | QQQ | ETF | 579.45 | 580.01 | 579.45 | 579.87 | 8598.0 |
| 2025-08-15 07:00:00 | QQQ | ETF | 579.78 | 580.18 | 579.72 | 580.09 | 26647.0 |
| 2025-08-15 07:30:00 | QQQ | ETF | 579.96 | 580.22 | 579.94 | 580.07 | 12867.0 |
| 2025-08-15 08:00:00 | QQQ | ETF | 579.78 | 581.02 | 579.02 | 579.53 | 97212.0 |
| 2025-08-15 08:30:00 | QQQ | ETF | 579.51 | 579.91 | 579.3 | 579.72 | 63205.0 |
| 2025-08-15 09:00:00 | QQQ | ETF | 579.6 | 580.2 | 579.32 | 579.87 | 319562.0 |
| 2025-08-15 09:30:00 | QQQ | ETF | 579.8 | 579.84 | 576.44 | 577.29 | 4287165.0 |
| 2025-08-15 10:00:00 | QQQ | ETF | 577.2 | 579.09 | 576.4 | 578.49 | 2891588.0 |
| 2025-08-15 10:30:00 | QQQ | ETF | 578.49 | 578.64 | 576.84 | 577.145 | 1953142.0 |
| 2025-08-15 11:00:00 | QQQ | ETF | 577.13 | 577.97 | 576.84 | 577.21 | 1538225.0 |
| 2025-08-15 11:30:00 | QQQ | ETF | 577.2 | 577.6 | 575.5743 | 576.84 | 2277103.0 |
| 2025-08-15 12:00:00 | QQQ | ETF | 576.83 | 577.385 | 576.25 | 576.34 | 1718690.0 |
| 2025-08-15 12:30:00 | QQQ | ETF | 576.35 | 577.7494 | 576.24 | 577.57 | 1604515.0 |
> showing 50 of 40,446 rows — these rows as CSV