PREVIEW / etf_30min / 2026-08-19
file: by_date/etf_30min/2026/2026-08-19.parquet size: 1.1 MB rows: 47,352
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-19 04:00:00 | SPY | ETF | 767.89 | 768.24 | 765.86 | 768.18 | 67339.0 |
| 2026-08-19 04:30:00 | SPY | ETF | 768.16 | 768.16 | 767.85 | 767.89 | 4633.0 |
| 2026-08-19 05:00:00 | SPY | ETF | 767.89 | 767.93 | 767.48 | 767.48 | 5610.0 |
| 2026-08-19 05:30:00 | SPY | ETF | 767.53 | 767.64 | 767.24 | 767.36 | 18204.0 |
| 2026-08-19 06:00:00 | SPY | ETF | 767.32 | 767.39 | 767.055 | 767.15 | 11870.0 |
| 2026-08-19 06:30:00 | SPY | ETF | 767.3701 | 767.69 | 767.26 | 767.47 | 4495.0 |
| 2026-08-19 07:00:00 | SPY | ETF | 767.42 | 768.0 | 767.39 | 767.79 | 33473.0 |
| 2026-08-19 07:30:00 | SPY | ETF | 767.79 | 767.85 | 767.47 | 767.85 | 18272.0 |
| 2026-08-19 08:00:00 | SPY | ETF | 767.79 | 768.1 | 766.99 | 767.73 | 80366.0 |
| 2026-08-19 08:30:00 | SPY | ETF | 767.79 | 771.82 | 767.56 | 770.86 | 987321.0 |
| 2026-08-19 09:00:00 | SPY | ETF | 770.73 | 771.09 | 770.09 | 770.34 | 307646.0 |
| 2026-08-19 09:30:00 | SPY | ETF | 770.36 | 770.63 | 768.1 | 769.99 | 3593654.0 |
| 2026-08-19 10:00:00 | SPY | ETF | 770.02 | 770.26 | 768.73 | 770.03 | 1919006.0 |
| 2026-08-19 10:30:00 | SPY | ETF | 769.98 | 772.24 | 769.8102 | 772.2 | 2075660.0 |
| 2026-08-19 11:00:00 | SPY | ETF | 772.195 | 772.47 | 770.88 | 771.1087 | 1358932.0 |
| 2026-08-19 11:30:00 | SPY | ETF | 771.13 | 771.18 | 770.07 | 770.6209 | 1421133.0 |
| 2026-08-19 12:00:00 | SPY | ETF | 770.64 | 771.99 | 770.4 | 770.67 | 1092843.0 |
| 2026-08-19 12:30:00 | SPY | ETF | 770.68 | 770.755 | 769.5 | 769.68 | 1402365.0 |
| 2026-08-19 13:00:00 | SPY | ETF | 769.69 | 770.229 | 769.02 | 769.57 | 1254739.0 |
| 2026-08-19 13:30:00 | SPY | ETF | 769.58 | 769.89 | 769.16 | 769.5076 | 1025316.0 |
| 2026-08-19 14:00:00 | SPY | ETF | 769.53 | 770.55 | 768.96 | 769.58 | 1342852.0 |
| 2026-08-19 14:30:00 | SPY | ETF | 769.58 | 770.09 | 769.48 | 769.515 | 1136697.0 |
| 2026-08-19 15:00:00 | SPY | ETF | 769.53 | 770.02 | 769.43 | 769.63 | 1500226.0 |
| 2026-08-19 15:30:00 | SPY | ETF | 769.65 | 770.38 | 768.2 | 769.06 | 5642596.0 |
| 2026-08-19 16:00:00 | SPY | ETF | 769.09 | 769.23 | 766.875 | 768.92 | 3013073.0 |
| 2026-08-19 16:30:00 | SPY | ETF | 768.94 | 769.12 | 768.77 | 769.05 | 121819.0 |
| 2026-08-19 17:00:00 | SPY | ETF | 769.0 | 769.1 | 768.96 | 769.05 | 32307.0 |
| 2026-08-19 17:30:00 | SPY | ETF | 769.06 | 769.17 | 769.0 | 769.17 | 8040.0 |
| 2026-08-19 18:00:00 | SPY | ETF | 769.24 | 770.29 | 769.15 | 769.85 | 38796.0 |
| 2026-08-19 18:30:00 | SPY | ETF | 769.8364 | 770.25 | 769.8 | 770.23 | 21485.0 |
| 2026-08-19 19:00:00 | SPY | ETF | 770.26 | 770.59 | 770.06 | 770.149 | 13490.0 |
| 2026-08-19 19:30:00 | SPY | ETF | 770.17 | 770.34 | 770.01 | 770.01 | 17377.0 |
| 2026-08-19 04:00:00 | QQQ | ETF | 717.3 | 719.02 | 714.01 | 718.6 | 184412.0 |
| 2026-08-19 04:30:00 | QQQ | ETF | 718.61 | 718.86 | 718.08 | 718.295 | 27717.0 |
| 2026-08-19 05:00:00 | QQQ | ETF | 718.34 | 718.77 | 717.29 | 717.31 | 45801.0 |
| 2026-08-19 05:30:00 | QQQ | ETF | 717.5 | 717.76 | 716.58 | 716.94 | 24243.0 |
| 2026-08-19 06:00:00 | QQQ | ETF | 716.97 | 716.97 | 715.97 | 716.58 | 48259.0 |
| 2026-08-19 06:30:00 | QQQ | ETF | 716.64 | 717.05 | 716.14 | 716.19 | 35361.0 |
| 2026-08-19 07:00:00 | QQQ | ETF | 716.18 | 717.57 | 715.95 | 716.66 | 76425.0 |
| 2026-08-19 07:30:00 | QQQ | ETF | 716.67 | 716.67 | 715.85 | 716.54 | 58839.0 |
| 2026-08-19 08:00:00 | QQQ | ETF | 716.5 | 717.7 | 716.0095 | 717.39 | 180540.0 |
| 2026-08-19 08:30:00 | QQQ | ETF | 717.54 | 721.87 | 716.89 | 721.54 | 800417.0 |
| 2026-08-19 09:00:00 | QQQ | ETF | 721.4 | 721.66 | 720.06 | 720.44 | 386825.0 |
| 2026-08-19 09:30:00 | QQQ | ETF | 720.39 | 721.4999 | 713.37 | 715.5 | 5654153.0 |
| 2026-08-19 10:00:00 | QQQ | ETF | 715.52 | 715.93 | 712.61 | 715.17 | 3529003.0 |
| 2026-08-19 10:30:00 | QQQ | ETF | 715.14 | 718.6 | 714.82 | 718.59 | 2473982.0 |
| 2026-08-19 11:00:00 | QQQ | ETF | 718.57 | 718.737 | 717.58 | 718.33 | 990037.0 |
| 2026-08-19 11:30:00 | QQQ | ETF | 718.32 | 718.4 | 716.8 | 718.17 | 1121732.0 |
| 2026-08-19 12:00:00 | QQQ | ETF | 718.18 | 719.7 | 717.71 | 718.25 | 1109060.0 |
| 2026-08-19 12:30:00 | QQQ | ETF | 718.26 | 718.52 | 716.86 | 717.04 | 810029.0 |
> showing 50 of 47,352 rows — these rows as CSV