PREVIEW / etf_30min / 2025-08-11
file: by_date/etf_30min/2025/2025-08-11.parquet size: 1007 KB rows: 42,114
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 |
|---|---|---|---|---|---|---|---|
| 2025-08-11 04:00:00 | SPY | ETF | 637.98 | 638.32 | 636.85 | 637.15 | 54906.0 |
| 2025-08-11 04:30:00 | SPY | ETF | 637.11 | 637.4 | 637.07 | 637.24 | 52494.0 |
| 2025-08-11 05:00:00 | SPY | ETF | 637.25 | 637.71 | 637.18 | 637.68 | 23627.0 |
| 2025-08-11 05:30:00 | SPY | ETF | 637.83 | 637.85 | 637.71 | 637.78 | 3375.0 |
| 2025-08-11 06:00:00 | SPY | ETF | 637.71 | 638.14 | 637.71 | 638.01 | 2835.0 |
| 2025-08-11 06:30:00 | SPY | ETF | 638.05 | 638.1 | 637.67 | 638.09 | 3661.0 |
| 2025-08-11 07:00:00 | SPY | ETF | 638.06 | 638.31 | 637.97 | 637.99 | 64583.0 |
| 2025-08-11 07:30:00 | SPY | ETF | 638.0 | 638.4 | 637.98 | 638.32 | 19588.0 |
| 2025-08-11 08:00:00 | SPY | ETF | 638.11 | 638.66 | 637.18 | 638.03 | 154270.0 |
| 2025-08-11 08:30:00 | SPY | ETF | 638.03 | 638.07 | 637.49 | 637.69 | 95010.0 |
| 2025-08-11 09:00:00 | SPY | ETF | 637.68 | 637.78 | 637.27 | 637.48 | 176601.0 |
| 2025-08-11 09:30:00 | SPY | ETF | 637.47 | 637.76 | 636.88 | 637.69 | 4306100.0 |
| 2025-08-11 10:00:00 | SPY | ETF | 637.68 | 637.97 | 637.2 | 637.2501 | 2858871.0 |
| 2025-08-11 10:30:00 | SPY | ETF | 637.2419 | 637.43 | 636.57 | 636.78 | 2453649.0 |
| 2025-08-11 11:00:00 | SPY | ETF | 636.77 | 637.3 | 636.53 | 637.09 | 1979901.0 |
| 2025-08-11 11:30:00 | SPY | ETF | 637.095 | 637.89 | 636.7899 | 637.86 | 2030582.0 |
| 2025-08-11 12:00:00 | SPY | ETF | 637.87 | 638.95 | 637.79 | 638.55 | 2827344.0 |
| 2025-08-11 12:30:00 | SPY | ETF | 638.54 | 638.61 | 637.32 | 637.3301 | 2186209.0 |
| 2025-08-11 13:00:00 | SPY | ETF | 637.33 | 637.61 | 636.91 | 637.185 | 1648785.0 |
| 2025-08-11 13:30:00 | SPY | ETF | 637.18 | 637.42 | 636.4 | 636.8019 | 2161505.0 |
| 2025-08-11 14:00:00 | SPY | ETF | 636.81 | 636.88 | 636.28 | 636.49 | 3178742.0 |
| 2025-08-11 14:30:00 | SPY | ETF | 636.5 | 636.8799 | 635.56 | 636.51 | 2491323.0 |
| 2025-08-11 15:00:00 | SPY | ETF | 636.5 | 636.64 | 635.995 | 636.262 | 1627546.0 |
| 2025-08-11 15:30:00 | SPY | ETF | 636.25 | 636.38 | 634.66 | 635.83 | 10242844.0 |
| 2025-08-11 16:00:00 | SPY | ETF | 635.84 | 635.99 | 635.32 | 635.49 | 1696096.0 |
| 2025-08-11 16:30:00 | SPY | ETF | 635.48 | 635.58 | 635.37 | 635.44 | 106662.0 |
| 2025-08-11 17:00:00 | SPY | ETF | 635.47 | 635.52 | 635.3764 | 635.52 | 20223.0 |
| 2025-08-11 17:30:00 | SPY | ETF | 635.53 | 635.6 | 635.45 | 635.57 | 14697.0 |
| 2025-08-11 18:00:00 | SPY | ETF | 635.52 | 635.85 | 635.19 | 635.2 | 44634.0 |
| 2025-08-11 18:30:00 | SPY | ETF | 635.211 | 635.8 | 635.2 | 635.8 | 15810.0 |
| 2025-08-11 19:00:00 | SPY | ETF | 635.85 | 635.88 | 635.5003 | 635.6 | 18417.0 |
| 2025-08-11 19:30:00 | SPY | ETF | 635.7107 | 635.92 | 635.6697 | 635.75 | 59198.0 |
| 2025-08-11 04:00:00 | QQQ | ETF | 575.48 | 575.48 | 573.55 | 574.05 | 34743.0 |
| 2025-08-11 04:30:00 | QQQ | ETF | 574.08 | 574.45 | 574.03 | 574.36 | 16405.0 |
| 2025-08-11 05:00:00 | QQQ | ETF | 574.37 | 574.85 | 574.35 | 574.85 | 19740.0 |
| 2025-08-11 05:30:00 | QQQ | ETF | 574.9 | 575.07 | 574.83 | 574.86 | 9501.0 |
| 2025-08-11 06:00:00 | QQQ | ETF | 574.9 | 575.35 | 574.78 | 575.25 | 14599.0 |
| 2025-08-11 06:30:00 | QQQ | ETF | 575.29 | 575.3 | 574.58 | 575.0 | 24391.0 |
| 2025-08-11 07:00:00 | QQQ | ETF | 574.94 | 575.2 | 574.88 | 574.93 | 37556.0 |
| 2025-08-11 07:30:00 | QQQ | ETF | 574.82 | 575.27 | 574.82 | 575.19 | 19478.0 |
| 2025-08-11 08:00:00 | QQQ | ETF | 575.18 | 575.76 | 573.66 | 575.15 | 132335.0 |
| 2025-08-11 08:30:00 | QQQ | ETF | 575.16 | 575.16 | 574.54 | 574.86 | 65068.0 |
| 2025-08-11 09:00:00 | QQQ | ETF | 574.89 | 574.95 | 574.36 | 574.7 | 122338.0 |
| 2025-08-11 09:30:00 | QQQ | ETF | 574.68 | 575.38 | 573.83 | 575.36 | 3232754.0 |
| 2025-08-11 10:00:00 | QQQ | ETF | 575.38 | 575.925 | 574.84 | 575.55 | 1942834.0 |
| 2025-08-11 10:30:00 | QQQ | ETF | 575.56 | 575.765 | 574.765 | 574.95 | 1225840.0 |
| 2025-08-11 11:00:00 | QQQ | ETF | 574.94 | 575.52 | 574.65 | 575.12 | 1099460.0 |
| 2025-08-11 11:30:00 | QQQ | ETF | 575.08 | 575.83 | 574.685 | 575.825 | 1297556.0 |
| 2025-08-11 12:00:00 | QQQ | ETF | 575.825 | 576.8 | 575.67 | 576.345 | 1548957.0 |
| 2025-08-11 12:30:00 | QQQ | ETF | 576.35 | 576.442 | 575.15 | 575.185 | 1142683.0 |
> showing 50 of 42,114 rows — these rows as CSV