Interest Rate Futures · CBOT

30-Year U.S. Treasury Bond (ZB)

Long-duration US Treasury bond futures.

Download free sample

Tick coverage: 2010-09-13 → 2026-10-26
Bar timeframes: 8 published
Catalog updated: 2026-10-26

ZB Downloads

Published Parquet files and roll records.

Bars

OHLCV bars by timeframe, with annual downloads.

ZB annual bar files · Select a file size to download
Year	10s	1m	2m	5m	30m	1h	4h	1D
2026	Free9.1 MB	3.2 MB	1.8 MB	910.9 KB	197.5 KB	109.8 KB	44.5 KB	20.9 KB
2025	11.6 MB	3.9 MB	2.3 MB	1.1 MB	238.2 KB	132.6 KB	53.8 KB	25.3 KB
2024	11.9 MB	4.0 MB	2.3 MB	1.1 MB	243.5 KB	135.8 KB	54.0 KB	25.4 KB
2023	12.9 MB	4.3 MB	2.5 MB	1.1 MB	245.8 KB	137.4 KB	54.1 KB	25.4 KB
2022	14.8 MB	4.6 MB	2.6 MB	1.2 MB	251.7 KB	139.6 KB	54.2 KB	25.4 KB
2021	12.7 MB	4.2 MB	2.4 MB	1.1 MB	242.5 KB	135.2 KB	53.9 KB	25.3 KB
2020	13.3 MB	4.3 MB	2.4 MB	1.1 MB	244.7 KB	136.4 KB	53.7 KB	25.3 KB
2019	11.3 MB	4.0 MB	2.3 MB	1.1 MB	240.6 KB	134.4 KB	54.0 KB	25.3 KB
2018	10.5 MB	3.8 MB	2.2 MB	1.0 MB	235.7 KB	132.1 KB	53.8 KB	25.2 KB
2017	10.6 MB	3.7 MB	2.2 MB	1.0 MB	234.3 KB	131.8 KB	53.6 KB	25.3 KB
2016	13.1 MB	4.2 MB	2.3 MB	1.1 MB	241.2 KB	135.0 KB	53.5 KB	25.3 KB
2015	12.6 MB	4.0 MB	2.3 MB	1.1 MB	240.9 KB	135.7 KB	53.7 KB	25.4 KB
2014	9.6 MB	3.5 MB	2.1 MB	1.0 MB	232.8 KB	131.1 KB	53.8 KB	25.3 KB
2013	10.8 MB	3.7 MB	2.2 MB	1.1 MB	235.4 KB	132.4 KB	53.3 KB	25.3 KB
2012	11.2 MB	3.8 MB	2.2 MB	1.1 MB	238.6 KB	135.2 KB	54.5 KB	26.4 KB
2011	12.0 MB	3.9 MB	2.2 MB	1.1 MB	234.1 KB	134.0 KB	54.0 KB	25.7 KB
2010	194.5 KB	109.5 KB	86.9 KB	65.5 KB	31.3 KB	22.4 KB	13.4 KB	8.1 KB

Continuous futures data (17)

Continuous derived datasets with unadjusted prices and additive roll adjustments.

ZB back-adjusted continuous files by year
Year	Size	File
2026	181.3 MB	download
2025	211.0 MB	download
2024	221.8 MB	download
2023	234.9 MB	download
2022	244.7 MB	download
2021	231.0 MB	download
2020	264.7 MB	download
2019	228.1 MB	download
2018	224.2 MB	download
2017	178.7 MB	download
2016	207.0 MB	download
2015	205.7 MB	download
2014	183.8 MB	download
2013	200.0 MB	download
2012	177.8 MB	download
2011	130.9 MB	download
2010	1.5 MB	download

All contracts (66)

ZB per-contract tick datasets
Contract	Coverage	Rows	Size	File
ZBM27	2026-09 to 2026-10	43	5.0 KB	parquet
ZBH27	2026-07 to 2026-10	1,721	36.4 KB	parquet
ZBZ26	2026-03 to 2026-10	7,248,210	46.4 MB	parquet
ZBU26	2026-01 to 2026-09	6,951,942	47.4 MB	parquet
ZBM26	2025-10 to 2026-06	9,031,603	58.5 MB	parquet
ZBH26	2025-07 to 2026-03	7,619,618	49.9 MB	parquet
ZBZ25	2025-04 to 2025-12	7,344,629	49.1 MB	parquet
ZBU25	2025-02 to 2025-09	6,798,637	46.4 MB	parquet
ZBM25	2024-10 to 2025-06	11,048,770	72.8 MB	parquet
ZBH25	2024-07 to 2025-03	7,419,128	51.3 MB	parquet
ZBZ24	2024-03 to 2024-12	8,978,469	60.6 MB	parquet
ZBU24	2024-01 to 2024-09	8,585,435	58.5 MB	parquet
ZBM24	2023-09 to 2024-06	7,660,004	53.2 MB	parquet
ZBH24	2023-07 to 2024-03	8,555,979	58.5 MB	parquet
ZBZ23	2023-04 to 2023-12	10,170,407	68.6 MB	parquet
ZBU23	2023-01 to 2023-09	7,813,922	54.6 MB	parquet
ZBM23	2022-09 to 2023-06	8,443,353	60.8 MB	parquet
ZBH23	2022-08 to 2023-03	7,501,121	53.6 MB	parquet
ZBZ22	2022-04 to 2022-12	8,799,547	62.7 MB	parquet
ZBU22	2022-02 to 2022-09	8,586,909	61.9 MB	parquet
ZBM22	2021-10 to 2022-06	10,002,599	69.7 MB	parquet
ZBH22	2021-08 to 2022-03	8,399,886	58.5 MB	parquet
ZBZ21	2021-05 to 2021-12	8,782,142	59.8 MB	parquet
ZBU21	2021-02 to 2021-09	7,678,830	53.2 MB	parquet
ZBM21	2020-11 to 2021-06	9,478,271	65.4 MB	parquet
ZBH21	2020-09 to 2021-03	8,415,991	57.5 MB	parquet
ZBZ20	2020-06 to 2020-12	8,142,492	56.2 MB	parquet
ZBU20	2020-01 to 2020-09	6,983,481	61.3 MB	parquet
ZBM20	2019-11 to 2020-06	10,039,856	88.3 MB	parquet
ZBH20	2019-08 to 2020-03	7,520,662	66.8 MB	parquet
ZBZ19	2019-04 to 2019-12	7,440,090	66.0 MB	parquet
ZBU19	2019-03 to 2019-09	7,382,180	65.5 MB	parquet
ZBM19	2018-12 to 2019-06	5,452,934	50.4 MB	parquet
ZBH19	2018-09 to 2019-03	6,001,437	53.8 MB	parquet
ZBZ18	2018-04 to 2018-12	7,230,467	63.9 MB	parquet
ZBU18	2018-02 to 2018-09	5,647,726	50.2 MB	parquet
ZBM18	2017-11 to 2018-06	6,401,451	57.8 MB	parquet
ZBH18	2017-09 to 2018-03	6,556,987	59.0 MB	parquet
ZBZ17	2017-05 to 2017-12	4,791,186	44.9 MB	parquet
ZBU17	2017-03 to 2017-09	4,746,334	44.6 MB	parquet
ZBM17	2016-11 to 2017-06	5,276,245	49.6 MB	parquet
ZBH17	2016-09 to 2017-03	5,444,764	49.9 MB	parquet
ZBZ16	2016-05 to 2016-12	6,145,847	55.8 MB	parquet
ZBU16	2016-02 to 2016-09	5,528,746	52.0 MB	parquet
ZBM16	2015-12 to 2016-06	5,145,978	48.0 MB	parquet
ZBH16	2015-09 to 2016-03	6,350,298	58.2 MB	parquet
ZBZ15	2015-06 to 2015-12	5,266,698	49.0 MB	parquet
ZBU15	2015-03 to 2015-09	6,221,784	58.2 MB	parquet
ZBM15	2014-10 to 2015-06	5,474,216	50.7 MB	parquet
ZBH15	2014-08 to 2015-03	6,587,916	58.2 MB	parquet
ZBZ14	2014-05 to 2014-12	6,278,759	55.5 MB	parquet
ZBU14	2014-02 to 2014-09	5,443,563	49.6 MB	parquet
ZBM14	2013-11 to 2014-06	5,174,968	45.0 MB	parquet
ZBH14	2013-11 to 2014-03	4,286,721	34.4 MB	parquet
ZBZ13	2013-08 to 2013-12	4,924,243	44.4 MB	parquet
ZBU13	2013-05 to 2013-09	6,689,949	59.4 MB	parquet
ZBM13	2013-02 to 2013-06	6,171,037	56.8 MB	parquet
ZBH13	2012-11 to 2013-03	5,663,455	51.5 MB	parquet
ZBZ12	2012-08 to 2012-12	5,762,534	44.0 MB	parquet
ZBU12	2012-05 to 2012-09	6,955,940	49.9 MB	parquet
ZBM12	2012-02 to 2012-06	6,301,084	46.6 MB	parquet
ZBH12	2011-11 to 2012-03	5,883,006	42.4 MB	parquet
ZBZ11	2011-08 to 2011-12	6,415,673	49.7 MB	parquet
ZBU11	2011-04 to 2011-09	3,516,655	31.5 MB	parquet
ZBM11	2010-10 to 2011-06	2,571,318	25.3 MB	parquet
ZBH11	2010-09 to 2011-03	1,804,465	16.6 MB	parquet

Latest 20 rolls

Latest 20 of 63 rolls. Download the full JSON ledger.

ZB latest roll records
Session	From	To	Diff	Old volume	New volume
2026-08-27	ZBU26-CBOT	ZBZ26-CBOT	-0.5	84,216	301,849
2026-05-27	ZBM26-CBOT	ZBU26-CBOT	-0.5	108,468	321,512
2026-02-25	ZBH26-CBOT	ZBM26-CBOT	-0.4375	108,131	220,214
2025-11-25	ZBZ25-CBOT	ZBH26-CBOT	-0.375	235,915	316,171
2025-08-27	ZBU25-CBOT	ZBZ25-CBOT	-0.375	123,245	258,744
2025-05-28	ZBM25-CBOT	ZBU25-CBOT	-0.34375	147,382	276,072
2025-02-26	ZBH25-CBOT	ZBM25-CBOT	-0.25	218,089	420,846
2024-11-27	ZBZ24-CBOT	ZBH25-CBOT	0.1875	80,538	404,590
2024-08-28	ZBU24-CBOT	ZBZ24-CBOT	0.15625	154,712	186,217
2024-05-29	ZBM24-CBOT	ZBU24-CBOT	0.0625	272,158	360,285
2024-02-28	ZBH24-CBOT	ZBM24-CBOT	0.03125	47,145	346,694
2023-11-29	ZBZ23-CBOT	ZBH24-CBOT	0.03125	48,813	472,740
2023-08-29	ZBU23-CBOT	ZBZ23-CBOT	0.125	211,795	222,401
2023-05-29	ZBM23-CBOT	ZBU23-CBOT	0.3125	17,729	25,522
2023-02-27	ZBH23-CBOT	ZBM23-CBOT	1.15625	93,845	227,025
2022-11-29	ZBZ22-CBOT	ZBH23-CBOT	-0.03125	88,776	244,441
2022-08-30	ZBU22-CBOT	ZBZ22-CBOT	-0.53125	77,626	182,767
2022-05-27	ZBM22-CBOT	ZBU22-CBOT	-0.96875	83,709	150,293
2022-02-25	ZBH22-CBOT	ZBM22-CBOT	1.71875	132,600	278,577
2021-11-29	ZBZ21-CBOT	ZBH22-CBOT	-1.5625	140,600	300,032

ZB Instrument specifications

Exchange: CBOT
Contract listings: Quarterly · H/M/U/Z
Minimum tick: 1/32
Point value: 1000.00 USD

Methodology

Per-contract, continuous and bar files are derived datasets. Continuous datasets join contracts with documented rolls and additive adjustments; bars aggregate ticks into OHLCV.

Read the schemas, timeframe rules and HTTP documentation.

ZB Quick start

View Python example

curl -LO https://historicalfuturesdata.com/ZB/bars/10s/cme.zb.bars.10s.2026.parquet

import pandas as pd
df = pd.read_parquet("cme.zb.bars.10s.2026.parquet")

import polars as pl
df = pl.read_parquet("cme.zb.bars.10s.2026.parquet")

Frequently asked questions about ZB historical data

What period does ZB cover?

2010-09-13 → 2026-10-26. This range comes from the current instrument catalog.

Which ZB timeframes are published?

10s, 1m, 2m, 5m, 30m, 1h, 4h, 1D. The bars table lists each available annual download.

How do I get a ZB sample?

Download cme.zb.bars.10s.2026.parquet using the free sample button. No account or API key is needed for this 10-second sample.