PREVIEW / etf_30min / 2026-08-31
file: by_date/etf_30min/2026/2026-08-31.parquet size: 1.0 MB rows: 46,722
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 |
|---|---|---|---|---|---|---|---|
| 2026-08-31 04:00:00 | SPY | ETF | 768.78 | 768.82 | 766.3 | 768.43 | 45267.0 |
| 2026-08-31 04:30:00 | SPY | ETF | 768.36 | 768.6 | 768.26 | 768.52 | 5600.0 |
| 2026-08-31 05:00:00 | SPY | ETF | 768.42 | 768.7401 | 768.27 | 768.61 | 1720.0 |
| 2026-08-31 05:30:00 | SPY | ETF | 768.48 | 768.48 | 767.925 | 768.0 | 5639.0 |
| 2026-08-31 06:00:00 | SPY | ETF | 767.83 | 768.14 | 767.73 | 768.14 | 3474.0 |
| 2026-08-31 06:30:00 | SPY | ETF | 768.01 | 768.25 | 767.91 | 768.19 | 6003.0 |
| 2026-08-31 07:00:00 | SPY | ETF | 768.151 | 768.2798 | 767.89 | 768.2 | 16933.0 |
| 2026-08-31 07:30:00 | SPY | ETF | 768.18 | 768.18 | 767.24 | 767.43 | 64272.0 |
| 2026-08-31 08:00:00 | SPY | ETF | 767.41 | 768.11 | 766.45 | 767.06 | 209170.0 |
| 2026-08-31 08:30:00 | SPY | ETF | 766.9346 | 767.27 | 766.34 | 766.54 | 128637.0 |
| 2026-08-31 09:00:00 | SPY | ETF | 766.55 | 767.38 | 766.45 | 767.29 | 151140.0 |
| 2026-08-31 09:30:00 | SPY | ETF | 767.33 | 767.62 | 765.5 | 766.18 | 3283781.0 |
| 2026-08-31 10:00:00 | SPY | ETF | 766.19 | 766.3 | 764.715 | 764.93 | 1777081.0 |
| 2026-08-31 10:30:00 | SPY | ETF | 764.885 | 766.399 | 764.8 | 765.95 | 1378965.0 |
| 2026-08-31 11:00:00 | SPY | ETF | 765.95 | 766.46 | 765.38 | 765.94 | 1189846.0 |
| 2026-08-31 11:30:00 | SPY | ETF | 765.95 | 766.34 | 765.31 | 765.4199 | 1036556.0 |
| 2026-08-31 12:00:00 | SPY | ETF | 765.42 | 765.95 | 764.98 | 765.9 | 1146851.0 |
| 2026-08-31 12:30:00 | SPY | ETF | 765.8949 | 765.98 | 765.19 | 765.84 | 897932.0 |
| 2026-08-31 13:00:00 | SPY | ETF | 765.85 | 766.06 | 765.39 | 765.42 | 698189.0 |
| 2026-08-31 13:30:00 | SPY | ETF | 765.425 | 766.81 | 765.17 | 766.52 | 1000025.0 |
| 2026-08-31 14:00:00 | SPY | ETF | 766.5 | 766.84 | 766.18 | 766.3 | 1025568.0 |
| 2026-08-31 14:30:00 | SPY | ETF | 766.3 | 766.42 | 765.05 | 765.67 | 1502275.0 |
| 2026-08-31 15:00:00 | SPY | ETF | 765.67 | 766.75 | 765.67 | 766.635 | 1283061.0 |
| 2026-08-31 15:30:00 | SPY | ETF | 766.62 | 767.995 | 766.18 | 766.95 | 9548010.0 |
| 2026-08-31 16:00:00 | SPY | ETF | 766.95 | 767.66 | 766.785 | 767.41 | 3539436.0 |
| 2026-08-31 16:30:00 | SPY | ETF | 767.4 | 767.5 | 767.2 | 767.31 | 167802.0 |
| 2026-08-31 17:00:00 | SPY | ETF | 767.32 | 767.45 | 767.05 | 767.3701 | 39926.0 |
| 2026-08-31 17:30:00 | SPY | ETF | 767.37 | 767.44 | 767.35 | 767.44 | 12201.0 |
| 2026-08-31 18:00:00 | SPY | ETF | 767.36 | 767.45 | 767.25 | 767.3767 | 14657.0 |
| 2026-08-31 18:30:00 | SPY | ETF | 767.37 | 767.44 | 767.25 | 767.26 | 8143.0 |
| 2026-08-31 19:00:00 | SPY | ETF | 767.3 | 767.4507 | 767.2768 | 767.41 | 5444.0 |
| 2026-08-31 19:30:00 | SPY | ETF | 767.48 | 767.67 | 767.43 | 767.51 | 15406.0 |
| 2026-08-31 04:00:00 | QQQ | ETF | 716.4 | 717.51 | 712.7 | 716.67 | 159336.0 |
| 2026-08-31 04:30:00 | QQQ | ETF | 716.69 | 716.7 | 716.09 | 716.24 | 22200.0 |
| 2026-08-31 05:00:00 | QQQ | ETF | 716.31 | 716.86 | 715.98 | 716.47 | 14166.0 |
| 2026-08-31 05:30:00 | QQQ | ETF | 716.48 | 716.49 | 715.375 | 715.45 | 13228.0 |
| 2026-08-31 06:00:00 | QQQ | ETF | 715.48 | 715.84 | 715.24 | 715.83 | 81359.0 |
| 2026-08-31 06:30:00 | QQQ | ETF | 715.7 | 715.955 | 715.45 | 715.66 | 11409.0 |
| 2026-08-31 07:00:00 | QQQ | ETF | 715.621 | 715.94 | 715.09 | 715.91 | 53827.0 |
| 2026-08-31 07:30:00 | QQQ | ETF | 715.6876 | 715.7185 | 714.86 | 714.92 | 30392.0 |
| 2026-08-31 08:00:00 | QQQ | ETF | 714.93 | 716.23 | 714.02 | 714.79 | 202531.0 |
| 2026-08-31 08:30:00 | QQQ | ETF | 714.73 | 715.17 | 713.7 | 713.9882 | 130479.0 |
| 2026-08-31 09:00:00 | QQQ | ETF | 714.0 | 715.23 | 713.7 | 715.22 | 161955.0 |
| 2026-08-31 09:30:00 | QQQ | ETF | 715.17 | 717.001 | 713.97 | 715.23 | 2657285.0 |
| 2026-08-31 10:00:00 | QQQ | ETF | 715.2 | 715.42 | 713.16 | 713.62 | 1383133.0 |
| 2026-08-31 10:30:00 | QQQ | ETF | 713.58 | 715.27 | 713.37 | 714.6 | 951114.0 |
| 2026-08-31 11:00:00 | QQQ | ETF | 714.61 | 715.31 | 714.14 | 714.73 | 616772.0 |
| 2026-08-31 11:30:00 | QQQ | ETF | 714.7 | 715.0 | 713.85 | 713.955 | 867815.0 |
| 2026-08-31 12:00:00 | QQQ | ETF | 713.97 | 714.86 | 713.36 | 714.84 | 1230376.0 |
| 2026-08-31 12:30:00 | QQQ | ETF | 714.85 | 715.28 | 714.1204 | 715.21 | 753870.0 |
> showing 50 of 46,722 rows — these rows as CSV