PREVIEW / etf_30min / 2025-08-22
file: by_date/etf_30min/2025/2025-08-22.parquet size: 1013 KB rows: 41,148
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 |
|---|---|---|---|---|---|---|---|
| 2025-08-22 04:00:00 | SPY | ETF | 636.02 | 636.97 | 635.97 | 636.74 | 16000.0 |
| 2025-08-22 04:30:00 | SPY | ETF | 636.58 | 637.42 | 636.54 | 637.03 | 35551.0 |
| 2025-08-22 05:00:00 | SPY | ETF | 637.22 | 637.22 | 636.96 | 637.15 | 4277.0 |
| 2025-08-22 05:30:00 | SPY | ETF | 637.08 | 637.26 | 636.93 | 637.26 | 2977.0 |
| 2025-08-22 06:00:00 | SPY | ETF | 637.3 | 637.45 | 637.22 | 637.45 | 4474.0 |
| 2025-08-22 06:30:00 | SPY | ETF | 637.44 | 637.54 | 637.31 | 637.41 | 1945.0 |
| 2025-08-22 07:00:00 | SPY | ETF | 637.42 | 637.54 | 637.09 | 637.12 | 99448.0 |
| 2025-08-22 07:30:00 | SPY | ETF | 637.12 | 637.22 | 636.87 | 636.97 | 49198.0 |
| 2025-08-22 08:00:00 | SPY | ETF | 637.43 | 637.55 | 633.85 | 637.5 | 113047.0 |
| 2025-08-22 08:30:00 | SPY | ETF | 637.52 | 637.57 | 636.96 | 637.02 | 145208.0 |
| 2025-08-22 09:00:00 | SPY | ETF | 636.99 | 637.76 | 636.92 | 637.76 | 230662.0 |
| 2025-08-22 09:30:00 | SPY | ETF | 637.76 | 639.72 | 637.25 | 638.41 | 5416973.0 |
| 2025-08-22 10:00:00 | SPY | ETF | 638.41 | 645.55 | 638.41 | 644.11 | 14162372.0 |
| 2025-08-22 10:30:00 | SPY | ETF | 644.1338 | 646.17 | 644.13 | 645.6458 | 5003389.0 |
| 2025-08-22 11:00:00 | SPY | ETF | 645.65 | 646.27 | 645.47 | 646.0 | 4439823.0 |
| 2025-08-22 11:30:00 | SPY | ETF | 646.01 | 646.5 | 645.3 | 645.41 | 3151139.0 |
| 2025-08-22 12:00:00 | SPY | ETF | 645.415 | 645.91 | 644.695 | 644.78 | 2713187.0 |
| 2025-08-22 12:30:00 | SPY | ETF | 644.78 | 645.4406 | 644.295 | 644.72 | 1621567.0 |
| 2025-08-22 13:00:00 | SPY | ETF | 644.7 | 646.26 | 644.7 | 646.15 | 2474389.0 |
| 2025-08-22 13:30:00 | SPY | ETF | 646.15 | 646.4 | 645.69 | 645.77 | 1775759.0 |
| 2025-08-22 14:00:00 | SPY | ETF | 645.785 | 646.04 | 645.285 | 645.385 | 2376509.0 |
| 2025-08-22 14:30:00 | SPY | ETF | 645.44 | 645.86 | 645.255 | 645.45 | 2586082.0 |
| 2025-08-22 15:00:00 | SPY | ETF | 645.45 | 645.64 | 645.052 | 645.08 | 3161907.0 |
| 2025-08-22 15:30:00 | SPY | ETF | 645.07 | 645.455 | 644.295 | 645.27 | 11489114.0 |
| 2025-08-22 16:00:00 | SPY | ETF | 645.25 | 645.59 | 644.94 | 645.42 | 2438670.0 |
| 2025-08-22 16:30:00 | SPY | ETF | 645.4 | 645.59 | 645.3202 | 645.4 | 41469.0 |
| 2025-08-22 17:00:00 | SPY | ETF | 645.43 | 645.49 | 645.15 | 645.4 | 33484.0 |
| 2025-08-22 17:30:00 | SPY | ETF | 645.39 | 645.58 | 645.29 | 645.29 | 48345.0 |
| 2025-08-22 18:00:00 | SPY | ETF | 645.29 | 645.3982 | 645.25 | 645.3982 | 20440.0 |
| 2025-08-22 18:30:00 | SPY | ETF | 645.36 | 645.61 | 645.31 | 645.61 | 19613.0 |
| 2025-08-22 19:00:00 | SPY | ETF | 645.6 | 645.6998 | 645.6 | 645.6992 | 6418.0 |
| 2025-08-22 19:30:00 | SPY | ETF | 645.6284 | 645.72 | 645.44 | 645.5 | 13822.0 |
| 2025-08-22 04:00:00 | QQQ | ETF | 563.01 | 564.29 | 562.91 | 563.9 | 41554.0 |
| 2025-08-22 04:30:00 | QQQ | ETF | 563.75 | 564.43 | 563.68 | 564.36 | 32669.0 |
| 2025-08-22 05:00:00 | QQQ | ETF | 564.32 | 564.35 | 563.96 | 564.21 | 8347.0 |
| 2025-08-22 05:30:00 | QQQ | ETF | 564.18 | 564.42 | 563.89 | 564.37 | 13709.0 |
| 2025-08-22 06:00:00 | QQQ | ETF | 564.36 | 564.9 | 564.36 | 564.75 | 23008.0 |
| 2025-08-22 06:30:00 | QQQ | ETF | 564.75 | 564.91 | 564.56 | 564.64 | 39897.0 |
| 2025-08-22 07:00:00 | QQQ | ETF | 564.66 | 565.0 | 564.36 | 564.41 | 69454.0 |
| 2025-08-22 07:30:00 | QQQ | ETF | 564.44 | 564.52 | 564.13 | 564.33 | 73209.0 |
| 2025-08-22 08:00:00 | QQQ | ETF | 564.72 | 564.99 | 560.45 | 564.82 | 174710.0 |
| 2025-08-22 08:30:00 | QQQ | ETF | 564.83 | 564.85 | 564.1 | 564.14 | 114073.0 |
| 2025-08-22 09:00:00 | QQQ | ETF | 564.16 | 564.67 | 564.06 | 564.67 | 112870.0 |
| 2025-08-22 09:30:00 | QQQ | ETF | 564.65 | 566.54 | 563.27 | 564.71 | 4038477.0 |
| 2025-08-22 10:00:00 | QQQ | ETF | 564.76 | 573.58 | 564.75 | 571.68 | 8938467.0 |
| 2025-08-22 10:30:00 | QQQ | ETF | 571.71 | 573.88 | 571.695 | 572.885 | 3307012.0 |
| 2025-08-22 11:00:00 | QQQ | ETF | 572.9 | 573.99 | 572.855 | 573.32 | 2306026.0 |
| 2025-08-22 11:30:00 | QQQ | ETF | 573.3 | 573.89 | 571.965 | 572.05 | 1711887.0 |
| 2025-08-22 12:00:00 | QQQ | ETF | 572.07 | 572.59 | 570.97 | 571.2203 | 1798424.0 |
| 2025-08-22 12:30:00 | QQQ | ETF | 571.235 | 571.871 | 570.57 | 571.075 | 1480949.0 |
> showing 50 of 41,148 rows — these rows as CSV