PREVIEW / etf_30min / 2026-04-21

all etf 30-min files

  file:    by_date/etf_30min/2026/2026-04-21.parquet
  size:    1.1 MB
  rows:    46,603

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
2026-04-21 04:00:00	SPY	ETF	709.64	710.58	709.54	710.24	31380.0
2026-04-21 04:30:00	SPY	ETF	710.17	710.7	710.1	710.435	7578.0
2026-04-21 05:00:00	SPY	ETF	710.37	710.37	709.89	710.06	20965.0
2026-04-21 05:30:00	SPY	ETF	710.25	710.92	710.18	710.89	41868.0
2026-04-21 06:00:00	SPY	ETF	710.86	711.19	710.81	710.91	34023.0
2026-04-21 06:30:00	SPY	ETF	710.97	711.73	710.94	711.6	77536.0
2026-04-21 07:00:00	SPY	ETF	711.55	711.85	710.8	711.85	269828.0
2026-04-21 07:30:00	SPY	ETF	711.82	712.28	711.53	711.58	93510.0
2026-04-21 08:00:00	SPY	ETF	711.59	711.71	710.66	711.4	217028.0
2026-04-21 08:30:00	SPY	ETF	711.4314	711.63	710.1	710.4157	372302.0
2026-04-21 09:00:00	SPY	ETF	710.45	710.55	710.04	710.28	152333.0
2026-04-21 09:30:00	SPY	ETF	710.28	710.865	708.75	710.75	3257905.0
2026-04-21 10:00:00	SPY	ETF	710.77	711.275	710.16	710.57	1964390.0
2026-04-21 10:30:00	SPY	ETF	710.56	710.78	707.46	707.59	2874734.0
2026-04-21 11:00:00	SPY	ETF	707.59	708.2	706.15	706.69	3889237.0
2026-04-21 11:30:00	SPY	ETF	706.66	707.48	706.04	706.72	2103096.0
2026-04-21 12:00:00	SPY	ETF	706.745	707.885	706.28	706.36	1577362.0
2026-04-21 12:30:00	SPY	ETF	706.3314	707.14	705.51	705.58	1584727.0
2026-04-21 13:00:00	SPY	ETF	705.58	706.3088	703.84	704.69	4255473.0
2026-04-21 13:30:00	SPY	ETF	704.68	707.41	704.64	705.795	3656517.0
2026-04-21 14:00:00	SPY	ETF	705.795	706.51	704.71	705.099	2188569.0
2026-04-21 14:30:00	SPY	ETF	705.095	706.89	705.0203	706.32	2262799.0
2026-04-21 15:00:00	SPY	ETF	706.33	707.78	706.19	707.725	3491111.0
2026-04-21 15:30:00	SPY	ETF	707.72	707.87	702.64	704.15	10414663.0
2026-04-21 16:00:00	SPY	ETF	704.15	707.99	703.27	706.2019	3700513.0
2026-04-21 16:30:00	SPY	ETF	706.2626	706.86	705.91	706.3	505927.0
2026-04-21 17:00:00	SPY	ETF	706.4	706.6	706.22	706.23	47108.0
2026-04-21 17:30:00	SPY	ETF	706.29	706.69	706.25	706.55	23775.0
2026-04-21 18:00:00	SPY	ETF	706.59	707.0	706.42	706.82	45897.0
2026-04-21 18:30:00	SPY	ETF	706.85	706.85	706.35	706.48	23636.0
2026-04-21 19:00:00	SPY	ETF	706.45	706.85	706.37	706.7	13225.0
2026-04-21 19:30:00	SPY	ETF	706.74	707.08	706.53	707.0	312211.0
2026-04-21 04:00:00	QQQ	ETF	648.7	649.5	648.14	648.9	67273.0
2026-04-21 04:30:00	QQQ	ETF	648.78	649.45	648.66	649.09	20557.0
2026-04-21 05:00:00	QQQ	ETF	648.87	648.88	648.34	648.7	21456.0
2026-04-21 05:30:00	QQQ	ETF	648.73	649.28	648.66	649.13	32942.0
2026-04-21 06:00:00	QQQ	ETF	649.19	649.59	649.04	649.31	36144.0
2026-04-21 06:30:00	QQQ	ETF	649.31	650.17	649.24	649.88	79159.0
2026-04-21 07:00:00	QQQ	ETF	649.9	650.1499	649.15	649.97	184297.0
2026-04-21 07:30:00	QQQ	ETF	650.0	650.59	649.84	649.87	135366.0
2026-04-21 08:00:00	QQQ	ETF	649.93	650.09	648.9	649.55	137277.0
2026-04-21 08:30:00	QQQ	ETF	649.69	649.95	648.53	648.7294	225489.0
2026-04-21 09:00:00	QQQ	ETF	648.73	648.83	648.19	648.34	131647.0
2026-04-21 09:30:00	QQQ	ETF	648.41	649.09	646.0	649.08	3906394.0
2026-04-21 10:00:00	QQQ	ETF	649.1	650.2	648.53	649.1682	2468679.0
2026-04-21 10:30:00	QQQ	ETF	649.16	649.58	646.49	646.62	2159096.0
2026-04-21 11:00:00	QQQ	ETF	646.63	647.84	644.88	646.31	2949774.0
2026-04-21 11:30:00	QQQ	ETF	646.3	647.23	645.58	646.51	1287092.0
2026-04-21 12:00:00	QQQ	ETF	646.575	647.74	645.8	645.86	1179812.0
2026-04-21 12:30:00	QQQ	ETF	645.85	646.85	644.97	645.04	1054487.0

> showing 50 of 46,603 rows — these rows as CSV

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