PREVIEW / etf_30min / 2026-08-18
file: by_date/etf_30min/2026/2026-08-18.parquet size: 1.1 MB rows: 47,256
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-18 04:00:00 | SPY | ETF | 769.21 | 770.42 | 767.8 | 768.6634 | 125466.0 |
| 2026-08-18 04:30:00 | SPY | ETF | 768.53 | 769.18 | 768.53 | 768.95 | 9598.0 |
| 2026-08-18 05:00:00 | SPY | ETF | 768.8 | 769.14 | 768.39 | 768.7 | 14854.0 |
| 2026-08-18 05:30:00 | SPY | ETF | 768.64 | 769.02 | 768.285 | 768.99 | 14440.0 |
| 2026-08-18 06:00:00 | SPY | ETF | 768.96 | 769.16 | 768.85 | 769.11 | 25646.0 |
| 2026-08-18 06:30:00 | SPY | ETF | 769.21 | 769.4088 | 768.2499 | 769.15 | 109564.0 |
| 2026-08-18 07:00:00 | SPY | ETF | 769.18 | 769.66 | 769.14 | 769.5899 | 76998.0 |
| 2026-08-18 07:30:00 | SPY | ETF | 769.53 | 769.85 | 769.22 | 769.51 | 135588.0 |
| 2026-08-18 08:00:00 | SPY | ETF | 769.49 | 769.88 | 769.27 | 769.31 | 75633.0 |
| 2026-08-18 08:30:00 | SPY | ETF | 769.3 | 769.6 | 768.9 | 769.55 | 178411.0 |
| 2026-08-18 09:00:00 | SPY | ETF | 769.6 | 769.65 | 768.45 | 768.68 | 197917.0 |
| 2026-08-18 09:30:00 | SPY | ETF | 768.7 | 769.5 | 767.9 | 768.47 | 4108918.0 |
| 2026-08-18 10:00:00 | SPY | ETF | 768.49 | 769.27 | 767.63 | 768.66 | 2757289.0 |
| 2026-08-18 10:30:00 | SPY | ETF | 768.64 | 769.25 | 767.71 | 767.92 | 2025823.0 |
| 2026-08-18 11:00:00 | SPY | ETF | 767.93 | 768.38 | 767.33 | 767.84 | 1752200.0 |
| 2026-08-18 11:30:00 | SPY | ETF | 767.855 | 768.63 | 767.6 | 768.35 | 1333356.0 |
| 2026-08-18 12:00:00 | SPY | ETF | 768.35 | 768.87 | 768.14 | 768.21 | 823650.0 |
| 2026-08-18 12:30:00 | SPY | ETF | 768.19 | 768.87 | 768.07 | 768.63 | 722691.0 |
| 2026-08-18 13:00:00 | SPY | ETF | 768.62 | 768.82 | 768.08 | 768.3 | 876354.0 |
| 2026-08-18 13:30:00 | SPY | ETF | 768.29 | 768.3925 | 767.61 | 767.62 | 678403.0 |
| 2026-08-18 14:00:00 | SPY | ETF | 767.62 | 768.565 | 767.45 | 768.36 | 1515343.0 |
| 2026-08-18 14:30:00 | SPY | ETF | 768.355 | 768.43 | 767.68 | 767.7 | 1272086.0 |
| 2026-08-18 15:00:00 | SPY | ETF | 767.69 | 768.18 | 767.56 | 768.02 | 1413470.0 |
| 2026-08-18 15:30:00 | SPY | ETF | 768.015 | 768.22 | 766.92 | 767.41 | 6827283.0 |
| 2026-08-18 16:00:00 | SPY | ETF | 767.41 | 767.53 | 767.17 | 767.4 | 1866904.0 |
| 2026-08-18 16:30:00 | SPY | ETF | 767.3985 | 767.56 | 767.11 | 767.27 | 167524.0 |
| 2026-08-18 17:00:00 | SPY | ETF | 767.28 | 767.3481 | 767.1 | 767.26 | 27074.0 |
| 2026-08-18 17:30:00 | SPY | ETF | 767.25 | 767.36 | 767.11 | 767.36 | 21269.0 |
| 2026-08-18 18:00:00 | SPY | ETF | 767.36 | 767.72 | 767.15 | 767.15 | 38132.0 |
| 2026-08-18 18:30:00 | SPY | ETF | 767.14 | 767.1993 | 766.75 | 766.75 | 13509.0 |
| 2026-08-18 19:00:00 | SPY | ETF | 766.75 | 767.35 | 766.7 | 767.1 | 18897.0 |
| 2026-08-18 19:30:00 | SPY | ETF | 767.14 | 767.26 | 767.03 | 767.04 | 20844.0 |
| 2026-08-18 04:00:00 | QQQ | ETF | 723.6 | 725.94 | 721.38 | 721.74 | 381719.0 |
| 2026-08-18 04:30:00 | QQQ | ETF | 721.8951 | 722.6 | 721.52 | 721.99 | 31821.0 |
| 2026-08-18 05:00:00 | QQQ | ETF | 722.1 | 722.32 | 721.085 | 721.36 | 48896.0 |
| 2026-08-18 05:30:00 | QQQ | ETF | 721.29 | 721.46 | 720.19 | 721.3 | 98998.0 |
| 2026-08-18 06:00:00 | QQQ | ETF | 721.28 | 721.46 | 720.58 | 721.08 | 100063.0 |
| 2026-08-18 06:30:00 | QQQ | ETF | 721.12 | 721.71 | 721.0 | 721.4 | 40413.0 |
| 2026-08-18 07:00:00 | QQQ | ETF | 721.41 | 722.29 | 721.22 | 721.98 | 149676.0 |
| 2026-08-18 07:30:00 | QQQ | ETF | 721.85 | 722.31 | 721.1501 | 721.65 | 95819.0 |
| 2026-08-18 08:00:00 | QQQ | ETF | 721.62 | 729.323 | 720.81 | 720.87 | 156215.0 |
| 2026-08-18 08:30:00 | QQQ | ETF | 720.86 | 721.0 | 720.06 | 720.805 | 174038.0 |
| 2026-08-18 09:00:00 | QQQ | ETF | 720.79 | 721.13 | 719.7 | 720.23 | 214138.0 |
| 2026-08-18 09:30:00 | QQQ | ETF | 720.22 | 722.13 | 718.11 | 719.125 | 5148332.0 |
| 2026-08-18 10:00:00 | QQQ | ETF | 719.14 | 720.56 | 717.24 | 719.7317 | 3250471.0 |
| 2026-08-18 10:30:00 | QQQ | ETF | 719.63 | 720.2 | 716.46 | 716.72 | 2857926.0 |
| 2026-08-18 11:00:00 | QQQ | ETF | 716.73 | 717.975 | 715.92 | 717.7626 | 2916916.0 |
| 2026-08-18 11:30:00 | QQQ | ETF | 717.7 | 718.97 | 717.15 | 718.87 | 2439563.0 |
| 2026-08-18 12:00:00 | QQQ | ETF | 718.88 | 719.49 | 718.19 | 718.2 | 2151224.0 |
| 2026-08-18 12:30:00 | QQQ | ETF | 718.2 | 719.67 | 718.0501 | 719.18 | 1817950.0 |
> showing 50 of 47,256 rows — these rows as CSV