PREVIEW / etf_30min / 2026-08-21

all etf 30-min files

  file:    by_date/etf_30min/2026/2026-08-21.parquet
  size:    1.1 MB
  rows:    46,986

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
2026-08-21 04:00:00	SPY	ETF	764.69	766.6	762.91	764.82	57616.0
2026-08-21 04:30:00	SPY	ETF	764.86	765.31	764.81	765.22	19072.0
2026-08-21 05:00:00	SPY	ETF	765.22	765.25	764.68	765.03	8752.0
2026-08-21 05:30:00	SPY	ETF	764.9	765.28	764.87	765.26	10896.0
2026-08-21 06:00:00	SPY	ETF	765.25	765.63	765.0	765.295	17439.0
2026-08-21 06:30:00	SPY	ETF	765.32	765.375	765.11	765.202	7921.0
2026-08-21 07:00:00	SPY	ETF	765.24	766.23	764.91	766.061	116106.0
2026-08-21 07:30:00	SPY	ETF	766.08	766.34	765.77	765.93	184115.0
2026-08-21 08:00:00	SPY	ETF	765.96	766.46	765.75	766.46	118829.0
2026-08-21 08:30:00	SPY	ETF	766.49	766.85	766.22	766.45	131430.0
2026-08-21 09:00:00	SPY	ETF	766.47	766.61	764.95	766.02	275883.0
2026-08-21 09:30:00	SPY	ETF	766.04	766.15	764.17	764.5124	3583646.0
2026-08-21 10:00:00	SPY	ETF	764.53	765.53	764.45	764.65	1804948.0
2026-08-21 10:30:00	SPY	ETF	764.65	765.835	764.215	765.8151	1391833.0
2026-08-21 11:00:00	SPY	ETF	765.81	766.41	765.455	765.955	1913902.0
2026-08-21 11:30:00	SPY	ETF	765.96	767.85	765.82	767.2	1671176.0
2026-08-21 12:00:00	SPY	ETF	767.2	767.3299	765.87	766.515	1671004.0
2026-08-21 12:30:00	SPY	ETF	766.51	766.57	765.81	766.39	1117308.0
2026-08-21 13:00:00	SPY	ETF	766.39	766.53	765.705	765.8	1053242.0
2026-08-21 13:30:00	SPY	ETF	765.82	765.9	765.43	765.43	820131.0
2026-08-21 14:00:00	SPY	ETF	765.44	765.735	765.26	765.285	931614.0
2026-08-21 14:30:00	SPY	ETF	765.27	766.23	765.06	766.1975	1237412.0
2026-08-21 15:00:00	SPY	ETF	766.2	766.365	765.85	766.05	1557887.0
2026-08-21 15:30:00	SPY	ETF	766.05	766.8	765.34	765.69	4885583.0
2026-08-21 16:00:00	SPY	ETF	765.65	765.72	765.24	765.26	2451243.0
2026-08-21 16:30:00	SPY	ETF	765.24	765.5	765.2	765.267	70005.0
2026-08-21 17:00:00	SPY	ETF	765.23	765.76	765.23	765.75	217273.0
2026-08-21 17:30:00	SPY	ETF	765.65	766.5	765.65	766.3034	92758.0
2026-08-21 18:00:00	SPY	ETF	766.33	767.2241	766.33	767.1	74147.0
2026-08-21 18:30:00	SPY	ETF	767.1	767.405	766.8905	767.29	71616.0
2026-08-21 19:00:00	SPY	ETF	767.13	767.14	766.71	766.79	16523.0
2026-08-21 19:30:00	SPY	ETF	766.79	767.0	766.73	767.0	14755.0
2026-08-21 04:00:00	QQQ	ETF	714.24	715.0	711.68	714.01	158112.0
2026-08-21 04:30:00	QQQ	ETF	714.01	715.13	713.98	714.9	40420.0
2026-08-21 05:00:00	QQQ	ETF	714.77	714.78	713.86	714.49	17558.0
2026-08-21 05:30:00	QQQ	ETF	714.5	715.77	714.39	715.61	38060.0
2026-08-21 06:00:00	QQQ	ETF	715.58	716.29	715.28	715.65	45684.0
2026-08-21 06:30:00	QQQ	ETF	715.74	715.77	715.29	715.49	31781.0
2026-08-21 07:00:00	QQQ	ETF	715.43	716.5	714.7921	716.37	179500.0
2026-08-21 07:30:00	QQQ	ETF	716.37	716.83	715.88	715.98	216319.0
2026-08-21 08:00:00	QQQ	ETF	715.94	716.3	710.397	716.3	77049.0
2026-08-21 08:30:00	QQQ	ETF	716.45	716.81	716.02	716.17	144033.0
2026-08-21 09:00:00	QQQ	ETF	716.18	716.2677	713.93	715.36	394119.0
2026-08-21 09:30:00	QQQ	ETF	715.22	715.4	710.1	711.27	3339067.0
2026-08-21 10:00:00	QQQ	ETF	711.2195	711.97	709.2	710.59	2287698.0
2026-08-21 10:30:00	QQQ	ETF	710.6	711.91	710.1635	711.9	1407829.0
2026-08-21 11:00:00	QQQ	ETF	711.9	712.85	711.78	712.75	1603396.0
2026-08-21 11:30:00	QQQ	ETF	712.78	715.6738	712.68	714.6	2387469.0
2026-08-21 12:00:00	QQQ	ETF	714.6	714.83	713.26	713.77	988048.0
2026-08-21 12:30:00	QQQ	ETF	713.7795	714.11	713.05	713.83	557935.0

> showing 50 of 46,986 rows — these rows as CSV

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