PREVIEW / etf_30min / 2026-08-28
file: by_date/etf_30min/2026/2026-08-28.parquet size: 1.0 MB rows: 45,316
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-28 04:00:00 | SPY | ETF | 771.19 | 771.4 | 770.27 | 771.05 | 24582.0 |
| 2026-08-28 04:30:00 | SPY | ETF | 771.07 | 771.61 | 770.95 | 771.08 | 4111.0 |
| 2026-08-28 05:00:00 | SPY | ETF | 771.05 | 771.15 | 770.78 | 771.06 | 3494.0 |
| 2026-08-28 05:30:00 | SPY | ETF | 771.05 | 771.16 | 770.9 | 770.99 | 2076.0 |
| 2026-08-28 06:00:00 | SPY | ETF | 770.94 | 771.08 | 770.85 | 771.06 | 6667.0 |
| 2026-08-28 06:30:00 | SPY | ETF | 771.07 | 771.14 | 770.77 | 770.98 | 1233.0 |
| 2026-08-28 07:00:00 | SPY | ETF | 771.051 | 771.39 | 770.83 | 771.22 | 143124.0 |
| 2026-08-28 07:30:00 | SPY | ETF | 771.38 | 771.4401 | 771.03 | 771.08 | 30477.0 |
| 2026-08-28 08:00:00 | SPY | ETF | 771.07 | 772.14 | 771.06 | 772.07 | 100077.0 |
| 2026-08-28 08:30:00 | SPY | ETF | 772.08 | 772.23 | 771.48 | 772.08 | 110586.0 |
| 2026-08-28 09:00:00 | SPY | ETF | 772.0 | 772.555 | 771.4 | 771.77 | 126491.0 |
| 2026-08-28 09:30:00 | SPY | ETF | 771.76 | 772.87 | 771.47 | 771.78 | 2082174.0 |
| 2026-08-28 10:00:00 | SPY | ETF | 771.79 | 773.13 | 769.77 | 771.3 | 3719193.0 |
| 2026-08-28 10:30:00 | SPY | ETF | 771.3 | 775.04 | 770.9 | 774.9601 | 2457304.0 |
| 2026-08-28 11:00:00 | SPY | ETF | 774.98 | 775.3 | 773.82 | 774.95 | 1937140.0 |
| 2026-08-28 11:30:00 | SPY | ETF | 774.97 | 775.0 | 770.83 | 771.07 | 2319677.0 |
| 2026-08-28 12:00:00 | SPY | ETF | 771.085 | 771.65 | 769.13 | 769.6 | 2260554.0 |
| 2026-08-28 12:30:00 | SPY | ETF | 769.6 | 770.7 | 769.54 | 769.69 | 1411965.0 |
| 2026-08-28 13:00:00 | SPY | ETF | 769.68 | 769.71 | 768.3076 | 768.82 | 1517055.0 |
| 2026-08-28 13:30:00 | SPY | ETF | 768.84 | 769.74 | 768.6 | 769.5399 | 909484.0 |
| 2026-08-28 14:00:00 | SPY | ETF | 769.56 | 769.8 | 768.89 | 769.06 | 894767.0 |
| 2026-08-28 14:30:00 | SPY | ETF | 769.05 | 769.58 | 768.31 | 768.68 | 1039338.0 |
| 2026-08-28 15:00:00 | SPY | ETF | 768.68 | 769.59 | 768.47 | 769.515 | 1261300.0 |
| 2026-08-28 15:30:00 | SPY | ETF | 769.51 | 769.88 | 769.02 | 769.34 | 4705589.0 |
| 2026-08-28 16:00:00 | SPY | ETF | 769.36 | 769.48 | 769.02 | 769.0977 | 1507121.0 |
| 2026-08-28 16:30:00 | SPY | ETF | 769.11 | 769.65 | 769.02 | 769.54 | 198704.0 |
| 2026-08-28 17:00:00 | SPY | ETF | 769.573 | 769.77 | 769.07 | 769.21 | 43780.0 |
| 2026-08-28 17:30:00 | SPY | ETF | 769.15 | 769.41 | 769.06 | 769.39 | 16122.0 |
| 2026-08-28 18:00:00 | SPY | ETF | 769.4099 | 769.4099 | 769.275 | 769.275 | 4486.0 |
| 2026-08-28 18:30:00 | SPY | ETF | 769.26 | 769.3876 | 769.26 | 769.315 | 2958.0 |
| 2026-08-28 19:00:00 | SPY | ETF | 769.31 | 769.3438 | 769.27 | 769.27 | 2702.0 |
| 2026-08-28 19:30:00 | SPY | ETF | 769.25 | 769.42 | 769.25 | 769.3278 | 17731.0 |
| 2026-08-28 04:00:00 | QQQ | ETF | 719.22 | 720.64 | 718.51 | 719.08 | 78932.0 |
| 2026-08-28 04:30:00 | QQQ | ETF | 719.1626 | 719.82 | 719.14 | 719.52 | 24607.0 |
| 2026-08-28 05:00:00 | QQQ | ETF | 719.47 | 719.49 | 719.0 | 719.42 | 9165.0 |
| 2026-08-28 05:30:00 | QQQ | ETF | 719.4 | 719.56 | 719.16 | 719.23 | 6346.0 |
| 2026-08-28 06:00:00 | QQQ | ETF | 719.12 | 719.34 | 718.94 | 719.34 | 5890.0 |
| 2026-08-28 06:30:00 | QQQ | ETF | 719.4 | 719.59 | 719.065 | 719.56 | 15913.0 |
| 2026-08-28 07:00:00 | QQQ | ETF | 719.58 | 719.96 | 719.05 | 719.8514 | 108969.0 |
| 2026-08-28 07:30:00 | QQQ | ETF | 719.81 | 720.0 | 719.035 | 719.1707 | 29196.0 |
| 2026-08-28 08:00:00 | QQQ | ETF | 719.13 | 720.57 | 719.04 | 720.52 | 80392.0 |
| 2026-08-28 08:30:00 | QQQ | ETF | 720.49 | 720.58 | 719.42 | 720.47 | 48691.0 |
| 2026-08-28 09:00:00 | QQQ | ETF | 720.42 | 721.0 | 719.6 | 719.9 | 168125.0 |
| 2026-08-28 09:30:00 | QQQ | ETF | 719.76 | 721.55 | 718.1762 | 719.91 | 2440413.0 |
| 2026-08-28 10:00:00 | QQQ | ETF | 719.93 | 721.63 | 716.78 | 720.3 | 3066972.0 |
| 2026-08-28 10:30:00 | QQQ | ETF | 720.35 | 723.83 | 719.83 | 723.8 | 2654823.0 |
| 2026-08-28 11:00:00 | QQQ | ETF | 723.77 | 724.125 | 722.28 | 723.46 | 1450337.0 |
| 2026-08-28 11:30:00 | QQQ | ETF | 723.455 | 723.49 | 717.7 | 717.87 | 2255178.0 |
| 2026-08-28 12:00:00 | QQQ | ETF | 717.93 | 718.82 | 715.69 | 716.31 | 2285281.0 |
| 2026-08-28 12:30:00 | QQQ | ETF | 716.32 | 717.79 | 715.97 | 716.65 | 1016860.0 |
> showing 50 of 45,316 rows — these rows as CSV