PREVIEW / etf_30min / 2025-08-28
file: by_date/etf_30min/2025/2025-08-28.parquet size: 1019 KB rows: 40,812
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 |
|---|---|---|---|---|---|---|---|
| 2025-08-28 04:00:00 | SPY | ETF | 647.61 | 647.91 | 647.45 | 647.58 | 16904.0 |
| 2025-08-28 04:30:00 | SPY | ETF | 647.45 | 647.49 | 647.13 | 647.2 | 14380.0 |
| 2025-08-28 05:00:00 | SPY | ETF | 647.19 | 647.41 | 647.09 | 647.15 | 5752.0 |
| 2025-08-28 05:30:00 | SPY | ETF | 647.02 | 647.18 | 646.99 | 647.05 | 4321.0 |
| 2025-08-28 06:00:00 | SPY | ETF | 646.91 | 647.14 | 646.88 | 647.0 | 3410.0 |
| 2025-08-28 06:30:00 | SPY | ETF | 646.92 | 647.03 | 646.5 | 646.74 | 14599.0 |
| 2025-08-28 07:00:00 | SPY | ETF | 646.8 | 646.88 | 646.29 | 646.43 | 43808.0 |
| 2025-08-28 07:30:00 | SPY | ETF | 646.44 | 646.97 | 646.3 | 646.97 | 98389.0 |
| 2025-08-28 08:00:00 | SPY | ETF | 646.87 | 647.67 | 645.92 | 646.54 | 123376.0 |
| 2025-08-28 08:30:00 | SPY | ETF | 646.55 | 647.58 | 646.55 | 647.1302 | 344294.0 |
| 2025-08-28 09:00:00 | SPY | ETF | 647.14 | 647.66 | 647.12 | 647.24 | 277825.0 |
| 2025-08-28 09:30:00 | SPY | ETF | 647.27 | 648.09 | 645.34 | 645.94 | 6442070.0 |
| 2025-08-28 10:00:00 | SPY | ETF | 645.93 | 646.68 | 645.58 | 645.955 | 3115645.0 |
| 2025-08-28 10:30:00 | SPY | ETF | 645.98 | 647.17 | 645.94 | 646.89 | 2597106.0 |
| 2025-08-28 11:00:00 | SPY | ETF | 646.89 | 647.6558 | 646.08 | 646.25 | 2605145.0 |
| 2025-08-28 11:30:00 | SPY | ETF | 646.275 | 647.19 | 646.24 | 647.02 | 1850830.0 |
| 2025-08-28 12:00:00 | SPY | ETF | 647.02 | 648.42 | 646.94 | 648.15 | 2116122.0 |
| 2025-08-28 12:30:00 | SPY | ETF | 648.15 | 648.365 | 647.62 | 647.67 | 1712700.0 |
| 2025-08-28 13:00:00 | SPY | ETF | 647.67 | 648.15 | 647.45 | 648.125 | 1451194.0 |
| 2025-08-28 13:30:00 | SPY | ETF | 648.13 | 648.515 | 648.075 | 648.38 | 1810238.0 |
| 2025-08-28 14:00:00 | SPY | ETF | 648.37 | 648.68 | 648.315 | 648.645 | 2053957.0 |
| 2025-08-28 14:30:00 | SPY | ETF | 648.65 | 649.055 | 648.63 | 648.965 | 2842453.0 |
| 2025-08-28 15:00:00 | SPY | ETF | 648.96 | 649.25 | 648.84 | 648.96 | 2380774.0 |
| 2025-08-28 15:30:00 | SPY | ETF | 648.95 | 649.48 | 648.73 | 648.89 | 7941648.0 |
| 2025-08-28 16:00:00 | SPY | ETF | 648.87 | 649.79 | 648.58 | 648.98 | 2113339.0 |
| 2025-08-28 16:30:00 | SPY | ETF | 648.98 | 649.21 | 648.81 | 648.87 | 192621.0 |
| 2025-08-28 17:00:00 | SPY | ETF | 648.9256 | 649.03 | 648.76 | 648.86 | 20524.0 |
| 2025-08-28 17:30:00 | SPY | ETF | 648.85 | 648.92 | 648.76 | 648.81 | 31968.0 |
| 2025-08-28 18:00:00 | SPY | ETF | 648.84 | 648.92 | 648.63 | 648.78 | 30034.0 |
| 2025-08-28 18:30:00 | SPY | ETF | 648.66 | 648.66 | 648.41 | 648.48 | 26827.0 |
| 2025-08-28 19:00:00 | SPY | ETF | 648.6 | 648.63 | 648.3905 | 648.53 | 6586.0 |
| 2025-08-28 19:30:00 | SPY | ETF | 648.57 | 648.7 | 648.57 | 648.65 | 6838.0 |
| 2025-08-28 04:00:00 | QQQ | ETF | 573.83 | 574.57 | 573.0 | 574.11 | 84802.0 |
| 2025-08-28 04:30:00 | QQQ | ETF | 574.14 | 574.17 | 573.46 | 573.52 | 18318.0 |
| 2025-08-28 05:00:00 | QQQ | ETF | 573.52 | 573.79 | 573.52 | 573.68 | 21531.0 |
| 2025-08-28 05:30:00 | QQQ | ETF | 573.67 | 573.67 | 573.37 | 573.43 | 11783.0 |
| 2025-08-28 06:00:00 | QQQ | ETF | 573.47 | 573.69 | 573.35 | 573.57 | 13533.0 |
| 2025-08-28 06:30:00 | QQQ | ETF | 573.47 | 573.71 | 573.1 | 573.35 | 17976.0 |
| 2025-08-28 07:00:00 | QQQ | ETF | 573.37 | 573.45 | 572.68 | 572.88 | 17747.0 |
| 2025-08-28 07:30:00 | QQQ | ETF | 572.86 | 573.52 | 572.81 | 573.52 | 19490.0 |
| 2025-08-28 08:00:00 | QQQ | ETF | 573.5 | 574.28 | 571.7 | 573.1865 | 138985.0 |
| 2025-08-28 08:30:00 | QQQ | ETF | 573.22 | 574.55 | 573.2 | 573.95 | 229733.0 |
| 2025-08-28 09:00:00 | QQQ | ETF | 573.94 | 574.5 | 573.91 | 574.08 | 127966.0 |
| 2025-08-28 09:30:00 | QQQ | ETF | 574.11 | 576.53 | 572.46 | 573.348 | 6809972.0 |
| 2025-08-28 10:00:00 | QQQ | ETF | 573.34 | 574.97 | 572.97 | 573.8118 | 3393907.0 |
| 2025-08-28 10:30:00 | QQQ | ETF | 573.84 | 576.22 | 573.8 | 575.85 | 2483771.0 |
| 2025-08-28 11:00:00 | QQQ | ETF | 575.87 | 576.77 | 574.67 | 574.8599 | 2312276.0 |
| 2025-08-28 11:30:00 | QQQ | ETF | 574.86 | 575.96 | 574.82 | 575.2 | 1636322.0 |
| 2025-08-28 12:00:00 | QQQ | ETF | 575.21 | 577.09 | 575.09 | 576.82 | 1723298.0 |
| 2025-08-28 12:30:00 | QQQ | ETF | 576.81 | 576.97 | 576.18 | 576.26 | 1977641.0 |
> showing 50 of 40,812 rows — these rows as CSV