{ "schema": "cme.6j.tick.continuous/1", "as_of_utc": "2026-10-26T07:56:29.943119+00:00", "rows": 287645703, "volume": 511325347, "first_utc": "2010-04-07T14:30:00+00:00", "last_utc": "2026-10-26T07:46:16.160000+00:00", "anchor_contract": "6JZ26-CME", "adjustments": { "6JZ26-CME": 0.0, "6JU26-CME": 4.700000000000017e-05, "6JM26-CME": 9.150000000000044e-05, "6JH26-CME": 0.0001410000000000005, "6JZ25-CME": 0.0001940000000000006, "6JU25-CME": 0.0002570000000000003, "6JM25-CME": 0.0003290000000000003, "6JH25-CME": 0.00039950000000000055, "6JZ24-CME": 0.00047200000000000106, "6JU24-CME": 0.0005605000000000011, "6JM24-CME": 0.0006485000000000015, "6JH24-CME": 0.0007435000000000011, "6JZ23-CME": 0.0008470000000000005, "6JU23-CME": 0.0009450000000000005, "6JM23-CME": 0.0010470000000000002, "6JH23-CME": 0.0011720000000000003, "6JZ22-CME": 0.0012545000000000004, "6JU22-CME": 0.00132, "6JM22-CME": 0.0013635000000000001, "6JH22-CME": 0.0013825, "6JZ21-CME": 0.0013919999999999991, "6JU21-CME": 0.001398, "6JM21-CME": 0.001405, "6JH21-CME": 0.0014134999999999998, "6JZ20-CME": 0.0014289999999999997, "6JU20-CME": 0.0014389999999999993, "6JM20-CME": 0.0014719999999999994, "6JH20-CME": 0.0015284999999999986, "6JZ19-CME": 0.001580999999999999, "6JU19-CME": 0.0016374999999999983, "6JM19-CME": 0.0017004999999999989, "6JH19-CME": 0.001766499999999999, "6JZ18-CME": 0.0018364999999999996, "6JU18-CME": 0.0018954999999999996, "6JM18-CME": 0.0019529999999999999, "6JH18-CME": 0.0020134999999999997, "6JZ17-CME": 0.0020669999999999994, "6JU17-CME": 0.002102999999999999, "6JM17-CME": 0.0021369999999999983, "6JH17-CME": 0.002172999999999998, "6JZ16-CME": 0.0022054999999999974, "6JU16-CME": 0.0022439999999999977, "6JM16-CME": 0.0022764999999999973, "6JH16-CME": 0.0023009999999999975, "6JZ15-CME": 0.0023209999999999984, "6JU15-CME": 0.002334499999999998, "6JM15-CME": 0.002342498999999998, "6JH15-CME": 0.002351498999999998, "6JZ14-CME": 0.0023594989999999993, "6JU14-CME": 0.002364498999999999, "6JM14-CME": 0.002369498999999999, "6JH14-CME": 0.0023734989999999994, "6JZ13-CME": 0.002377499, "6JU13-CME": 0.002378498999999999, "6JM13-CME": 0.002383498999999999, "6JH13-CME": 0.002389498999999998, "6JZ12-CME": 0.0023984989999999984, "6JU12-CME": 0.0024104989999999982, "6JM12-CME": 0.0024244989999999984, "6JH12-CME": 0.0024384989999999968, "6JZ11-CME": 0.002485498999999997, "6JU11-CME": 0.0025024989999999966, "6JM11-CME": 0.0025024989999999966, "6JH11-CME": 0.002511498999999997 }, "files": [ "cme.6j.tick.continuous.2010.parquet", "cme.6j.tick.continuous.2011.parquet", "cme.6j.tick.continuous.2012.parquet", "cme.6j.tick.continuous.2013.parquet", "cme.6j.tick.continuous.2014.parquet", "cme.6j.tick.continuous.2015.parquet", "cme.6j.tick.continuous.2016.parquet", "cme.6j.tick.continuous.2017.parquet", "cme.6j.tick.continuous.2018.parquet", "cme.6j.tick.continuous.2019.parquet", "cme.6j.tick.continuous.2020.parquet", "cme.6j.tick.continuous.2021.parquet", "cme.6j.tick.continuous.2022.parquet", "cme.6j.tick.continuous.2023.parquet", "cme.6j.tick.continuous.2024.parquet", "cme.6j.tick.continuous.2025.parquet", "cme.6j.tick.continuous.2026.parquet" ], "rolls": [ { "from_contract": "6JH11-CME", "to_contract": "6JM11-CME", "decision_session": "2011-03-11", "old_volume": 65620, "new_volume": 198470, "switch_utc": "2011-03-13T22:00:00+00:00", "difference": 9.000000000000327e-06 }, { "from_contract": "6JM11-CME", "to_contract": "6JU11-CME", "decision_session": "2011-06-10", "old_volume": 34499, "new_volume": 92814, "switch_utc": "2011-06-12T22:00:00+00:00", "difference": 0.0 }, { "from_contract": "6JU11-CME", "to_contract": "6JZ11-CME", "decision_session": "2011-09-15", "old_volume": 81486, "new_volume": 83727, "switch_utc": "2011-09-15T22:00:00+00:00", "difference": 1.6999999999999654e-05 }, { "from_contract": "6JZ11-CME", "to_contract": "6JH12-CME", "decision_session": "2011-11-27", "old_volume": 2, "new_volume": 4, "switch_utc": "2011-11-27T23:00:00+00:00", "difference": 4.700000000000017e-05 }, { "from_contract": "6JH12-CME", "to_contract": "6JM12-CME", "decision_session": "2012-03-16", "old_volume": 20744, "new_volume": 93112, "switch_utc": "2012-03-18T22:00:00+00:00", "difference": 1.3999999999998389e-05 }, { "from_contract": "6JM12-CME", "to_contract": "6JU12-CME", "decision_session": "2012-06-15", "old_volume": 27765, "new_volume": 81454, "switch_utc": "2012-06-17T22:00:00+00:00", "difference": 1.4000000000000123e-05 }, { "from_contract": "6JU12-CME", "to_contract": "6JZ12-CME", "decision_session": "2012-09-02", "old_volume": 1, "new_volume": 3, "switch_utc": "2012-09-02T22:00:00+00:00", "difference": 1.1999999999999858e-05 }, { "from_contract": "6JZ12-CME", "to_contract": "6JH13-CME", "decision_session": "2012-12-14", "old_volume": 21900, "new_volume": 117019, "switch_utc": "2012-12-16T23:00:00+00:00", "difference": 9.000000000000327e-06 }, { "from_contract": "6JH13-CME", "to_contract": "6JM13-CME", "decision_session": "2013-03-15", "old_volume": 25099, "new_volume": 168379, "switch_utc": "2013-03-17T22:00:00+00:00", "difference": 5.999999999999062e-06 }, { "from_contract": "6JM13-CME", "to_contract": "6JU13-CME", "decision_session": "2013-06-14", "old_volume": 35486, "new_volume": 231605, "switch_utc": "2013-06-16T22:00:00+00:00", "difference": 4.999999999999796e-06 }, { "from_contract": "6JU13-CME", "to_contract": "6JZ13-CME", "decision_session": "2013-09-13", "old_volume": 16691, "new_volume": 95674, "switch_utc": "2013-09-15T22:00:00+00:00", "difference": 9.999999999992654e-07 }, { "from_contract": "6JZ13-CME", "to_contract": "6JH14-CME", "decision_session": "2013-12-13", "old_volume": 19612, "new_volume": 126914, "switch_utc": "2013-12-15T23:00:00+00:00", "difference": 4.000000000000531e-06 }, { "from_contract": "6JH14-CME", "to_contract": "6JM14-CME", "decision_session": "2014-03-14", "old_volume": 25070, "new_volume": 154820, "switch_utc": "2014-03-16T22:00:00+00:00", "difference": 4.000000000000531e-06 }, { "from_contract": "6JM14-CME", "to_contract": "6JU14-CME", "decision_session": "2014-06-13", "old_volume": 13909, "new_volume": 88888, "switch_utc": "2014-06-15T22:00:00+00:00", "difference": 4.999999999999796e-06 }, { "from_contract": "6JU14-CME", "to_contract": "6JZ14-CME", "decision_session": "2014-09-12", "old_volume": 16750, "new_volume": 114421, "switch_utc": "2014-09-14T22:00:00+00:00", "difference": 4.999999999999796e-06 }, { "from_contract": "6JZ14-CME", "to_contract": "6JH15-CME", "decision_session": "2014-12-12", "old_volume": 26014, "new_volume": 209860, "switch_utc": "2014-12-14T23:00:00+00:00", "difference": 8.000000000001062e-06 }, { "from_contract": "6JH15-CME", "to_contract": "6JM15-CME", "decision_session": "2015-03-13", "old_volume": 14557, "new_volume": 92465, "switch_utc": "2015-03-15T22:00:00+00:00", "difference": 9.000000000000327e-06 }, { "from_contract": "6JM15-CME", "to_contract": "6JU15-CME", "decision_session": "2015-06-12", "old_volume": 17635, "new_volume": 107394, "switch_utc": "2015-06-14T22:00:00+00:00", "difference": 7.998999999999853e-06 }, { "from_contract": "6JU15-CME", "to_contract": "6JZ15-CME", "decision_session": "2015-09-11", "old_volume": 18370, "new_volume": 102588, "switch_utc": "2015-09-13T22:00:00+00:00", "difference": 1.3499999999999623e-05 }, { "from_contract": "6JZ15-CME", "to_contract": "6JH16-CME", "decision_session": "2015-12-11", "old_volume": 40863, "new_volume": 142294, "switch_utc": "2015-12-13T23:00:00+00:00", "difference": 2.000000000000092e-05 }, { "from_contract": "6JH16-CME", "to_contract": "6JM16-CME", "decision_session": "2016-03-11", "old_volume": 24227, "new_volume": 104983, "switch_utc": "2016-03-13T22:00:00+00:00", "difference": 2.4500000000000216e-05 }, { "from_contract": "6JM16-CME", "to_contract": "6JU16-CME", "decision_session": "2016-06-10", "old_volume": 24965, "new_volume": 105629, "switch_utc": "2016-06-12T22:00:00+00:00", "difference": 3.249999999999954e-05 }, { "from_contract": "6JU16-CME", "to_contract": "6JZ16-CME", "decision_session": "2016-09-16", "old_volume": 17375, "new_volume": 88957, "switch_utc": "2016-09-18T22:00:00+00:00", "difference": 3.850000000000034e-05 }, { "from_contract": "6JZ16-CME", "to_contract": "6JH17-CME", "decision_session": "2016-12-16", "old_volume": 14347, "new_volume": 111536, "switch_utc": "2016-12-18T23:00:00+00:00", "difference": 3.249999999999954e-05 }, { "from_contract": "6JH17-CME", "to_contract": "6JM17-CME", "decision_session": "2017-03-10", "old_volume": 22125, "new_volume": 154950, "switch_utc": "2017-03-12T22:00:00+00:00", "difference": 3.5999999999999574e-05 }, { "from_contract": "6JM17-CME", "to_contract": "6JU17-CME", "decision_session": "2017-06-16", "old_volume": 19191, "new_volume": 131616, "switch_utc": "2017-06-18T22:00:00+00:00", "difference": 3.399999999999931e-05 }, { "from_contract": "6JU17-CME", "to_contract": "6JZ17-CME", "decision_session": "2017-09-15", "old_volume": 22565, "new_volume": 194144, "switch_utc": "2017-09-17T22:00:00+00:00", "difference": 3.5999999999999574e-05 }, { "from_contract": "6JZ17-CME", "to_contract": "6JH18-CME", "decision_session": "2017-12-15", "old_volume": 19104, "new_volume": 129136, "switch_utc": "2017-12-17T23:00:00+00:00", "difference": 5.349999999999973e-05 }, { "from_contract": "6JH18-CME", "to_contract": "6JM18-CME", "decision_session": "2018-03-16", "old_volume": 13984, "new_volume": 118806, "switch_utc": "2018-03-18T22:00:00+00:00", "difference": 6.049999999999979e-05 }, { "from_contract": "6JM18-CME", "to_contract": "6JU18-CME", "decision_session": "2018-06-15", "old_volume": 22895, "new_volume": 127149, "switch_utc": "2018-06-17T22:00:00+00:00", "difference": 5.750000000000026e-05 }, { "from_contract": "6JU18-CME", "to_contract": "6JZ18-CME", "decision_session": "2018-09-14", "old_volume": 14306, "new_volume": 97784, "switch_utc": "2018-09-16T22:00:00+00:00", "difference": 5.9000000000000025e-05 }, { "from_contract": "6JZ18-CME", "to_contract": "6JH19-CME", "decision_session": "2018-12-14", "old_volume": 15825, "new_volume": 88118, "switch_utc": "2018-12-16T23:00:00+00:00", "difference": 7.000000000000062e-05 }, { "from_contract": "6JH19-CME", "to_contract": "6JM19-CME", "decision_session": "2019-03-15", "old_volume": 19811, "new_volume": 98391, "switch_utc": "2019-03-17T22:00:00+00:00", "difference": 6.600000000000009e-05 }, { "from_contract": "6JM19-CME", "to_contract": "6JU19-CME", "decision_session": "2019-06-14", "old_volume": 17237, "new_volume": 111284, "switch_utc": "2019-06-16T22:00:00+00:00", "difference": 6.300000000000056e-05 }, { "from_contract": "6JU19-CME", "to_contract": "6JZ19-CME", "decision_session": "2019-09-13", "old_volume": 12419, "new_volume": 103678, "switch_utc": "2019-09-15T22:00:00+00:00", "difference": 5.649999999999926e-05 }, { "from_contract": "6JZ19-CME", "to_contract": "6JH20-CME", "decision_session": "2019-12-13", "old_volume": 28593, "new_volume": 177534, "switch_utc": "2019-12-15T23:00:00+00:00", "difference": 5.250000000000046e-05 }, { "from_contract": "6JH20-CME", "to_contract": "6JM20-CME", "decision_session": "2020-03-13", "old_volume": 36772, "new_volume": 166306, "switch_utc": "2020-03-15T22:00:00+00:00", "difference": 5.649999999999926e-05 }, { "from_contract": "6JM20-CME", "to_contract": "6JU20-CME", "decision_session": "2020-06-12", "old_volume": 20067, "new_volume": 96048, "switch_utc": "2020-06-14T22:00:00+00:00", "difference": 3.300000000000004e-05 }, { "from_contract": "6JU20-CME", "to_contract": "6JZ20-CME", "decision_session": "2020-09-11", "old_volume": 10625, "new_volume": 53515, "switch_utc": "2020-09-13T22:00:00+00:00", "difference": 9.999999999999593e-06 }, { "from_contract": "6JZ20-CME", "to_contract": "6JH21-CME", "decision_session": "2020-12-11", "old_volume": 18763, "new_volume": 99131, "switch_utc": "2020-12-13T23:00:00+00:00", "difference": 1.549999999999989e-05 }, { "from_contract": "6JH21-CME", "to_contract": "6JM21-CME", "decision_session": "2021-03-12", "old_volume": 8703, "new_volume": 107823, "switch_utc": "2021-03-14T22:00:00+00:00", "difference": 8.499999999999827e-06 }, { "from_contract": "6JM21-CME", "to_contract": "6JU21-CME", "decision_session": "2021-06-11", "old_volume": 6192, "new_volume": 77966, "switch_utc": "2021-06-13T22:00:00+00:00", "difference": 7.000000000000062e-06 }, { "from_contract": "6JU21-CME", "to_contract": "6JZ21-CME", "decision_session": "2021-09-13", "old_volume": 192, "new_volume": 62225, "switch_utc": "2021-09-13T22:00:00+00:00", "difference": 6.000000000000796e-06 }, { "from_contract": "6JZ21-CME", "to_contract": "6JH22-CME", "decision_session": "2021-12-10", "old_volume": 10184, "new_volume": 81430, "switch_utc": "2021-12-12T23:00:00+00:00", "difference": 9.499999999999093e-06 }, { "from_contract": "6JH22-CME", "to_contract": "6JM22-CME", "decision_session": "2022-03-11", "old_volume": 10331, "new_volume": 112432, "switch_utc": "2022-03-13T22:00:00+00:00", "difference": 1.899999999999992e-05 }, { "from_contract": "6JM22-CME", "to_contract": "6JU22-CME", "decision_session": "2022-06-10", "old_volume": 23400, "new_volume": 159785, "switch_utc": "2022-06-12T22:00:00+00:00", "difference": 4.3500000000000136e-05 }, { "from_contract": "6JU22-CME", "to_contract": "6JZ22-CME", "decision_session": "2022-09-16", "old_volume": 11529, "new_volume": 132827, "switch_utc": "2022-09-18T22:00:00+00:00", "difference": 6.549999999999959e-05 }, { "from_contract": "6JZ22-CME", "to_contract": "6JH23-CME", "decision_session": "2022-12-16", "old_volume": 15320, "new_volume": 99470, "switch_utc": "2022-12-18T23:00:00+00:00", "difference": 8.250000000000011e-05 }, { "from_contract": "6JH23-CME", "to_contract": "6JM23-CME", "decision_session": "2023-03-10", "old_volume": 21003, "new_volume": 242312, "switch_utc": "2023-03-12T22:00:00+00:00", "difference": 0.0001250000000000001 }, { "from_contract": "6JM23-CME", "to_contract": "6JU23-CME", "decision_session": "2023-06-15", "old_volume": 54637, "new_volume": 202185, "switch_utc": "2023-06-15T22:00:00+00:00", "difference": 0.00010199999999999966 }, { "from_contract": "6JU23-CME", "to_contract": "6JZ23-CME", "decision_session": "2023-09-15", "old_volume": 14570, "new_volume": 135130, "switch_utc": "2023-09-17T22:00:00+00:00", "difference": 9.8e-05 }, { "from_contract": "6JZ23-CME", "to_contract": "6JH24-CME", "decision_session": "2023-12-15", "old_volume": 25510, "new_volume": 170211, "switch_utc": "2023-12-17T23:00:00+00:00", "difference": 0.00010349999999999943 }, { "from_contract": "6JH24-CME", "to_contract": "6JM24-CME", "decision_session": "2024-03-15", "old_volume": 25657, "new_volume": 124375, "switch_utc": "2024-03-17T22:00:00+00:00", "difference": 9.49999999999996e-05 }, { "from_contract": "6JM24-CME", "to_contract": "6JU24-CME", "decision_session": "2024-06-14", "old_volume": 26163, "new_volume": 230337, "switch_utc": "2024-06-16T22:00:00+00:00", "difference": 8.80000000000004e-05 }, { "from_contract": "6JU24-CME", "to_contract": "6JZ24-CME", "decision_session": "2024-09-13", "old_volume": 14401, "new_volume": 170275, "switch_utc": "2024-09-15T22:00:00+00:00", "difference": 8.850000000000004e-05 }, { "from_contract": "6JZ24-CME", "to_contract": "6JH25-CME", "decision_session": "2024-12-13", "old_volume": 12321, "new_volume": 120246, "switch_utc": "2024-12-15T23:00:00+00:00", "difference": 7.250000000000052e-05 }, { "from_contract": "6JH25-CME", "to_contract": "6JM25-CME", "decision_session": "2025-03-14", "old_volume": 13819, "new_volume": 125654, "switch_utc": "2025-03-16T22:00:00+00:00", "difference": 7.050000000000025e-05 }, { "from_contract": "6JM25-CME", "to_contract": "6JU25-CME", "decision_session": "2025-06-13", "old_volume": 15449, "new_volume": 165191, "switch_utc": "2025-06-15T22:00:00+00:00", "difference": 7.200000000000002e-05 }, { "from_contract": "6JU25-CME", "to_contract": "6JZ25-CME", "decision_session": "2025-09-12", "old_volume": 8569, "new_volume": 91391, "switch_utc": "2025-09-14T22:00:00+00:00", "difference": 6.299999999999969e-05 }, { "from_contract": "6JZ25-CME", "to_contract": "6JH26-CME", "decision_session": "2025-12-12", "old_volume": 10827, "new_volume": 93246, "switch_utc": "2025-12-14T23:00:00+00:00", "difference": 5.3000000000000096e-05 }, { "from_contract": "6JH26-CME", "to_contract": "6JM26-CME", "decision_session": "2026-03-13", "old_volume": 18642, "new_volume": 130778, "switch_utc": "2026-03-15T22:00:00+00:00", "difference": 4.9500000000000065e-05 }, { "from_contract": "6JM26-CME", "to_contract": "6JU26-CME", "decision_session": "2026-06-12", "old_volume": 13825, "new_volume": 128117, "switch_utc": "2026-06-14T22:00:00+00:00", "difference": 4.450000000000027e-05 }, { "from_contract": "6JU26-CME", "to_contract": "6JZ26-CME", "decision_session": "2026-09-11", "old_volume": 14882, "new_volume": 180890, "switch_utc": "2026-09-13T22:00:00+00:00", "difference": 4.700000000000017e-05 } ] }