Table Data - Brave-Butters-Kelley Irregular Component of GDP

Title Brave-Butters-Kelley Irregular Component of GDP
Series ID BBKQIR
Source Indiana University: Indiana Business Research Center
Release Brave-Butters-Kelley Indexes
Seasonal Adjustment Seasonally Adjusted
Frequency Quarterly
Units Annualized Percent Change from Preceding Period
Date Range 1960-01-01 to 2026-01-01
Last Updated 2026-06-29 7:32 AM CDT
Notes The Brave-Butters-Kelley Indexes (BBKI) are the byproduct of research originally conducted by the Federal Reserve Bank of Chicago. Currently, the BBKI are maintained and produced by the Indiana Business Research Center at the Kelley School of Business at Indiana University. The BBK Coincident and Leading Indexes and Monthly GDP Growth for the U.S. are constructed from a collapsed dynamic factor analysis of a panel of 490 monthly measures of real economic activity and quarterly real GDP growth.

The irregular component of GDP is expressed in annualized real GDP growth equivalent units.

This quarterly series is aggregated from the monthly version of the series (BBKMIR), using the triangle average described in Brave, Butters, and Kelley (2019) to approximate quarterly annualized (log) percent changes from the monthly series.

For more details, see also:
Brave, Scott A., Ross Cole, and David Kelley, 2019, A 'big data' view of the U.S. economy: Introducing the Brave-Butters-Kelley Indexes, Chicago Fed Letter, Federal Reserve Bank of Chicago, No. 422. Crossref, https://doi.org/10.21033/cfl-2019-422
Brave, Scott A., R. Andrew Butters, and David Kelley, 2019, A new 'big data' index of U.S. economic activity, Economic Perspectives, Federal Reserve Bank of Chicago, Vol. 43, No. 1. Crossref, https://doi.org/10.21033/ep-2019-1
DATE VALUE
1960-01-01 3.4512430765181903000
1960-04-01 -2.5302826782773997000
1960-07-01 1.8312875960210080000
1960-10-01 -3.9677848502967494000
1961-01-01 2.6255024230489163000
1961-04-01 0.5757340132744546000
1961-07-01 0.8459124276131633000
1961-10-01 0.4977505789139305000
1962-01-01 1.4978972359383003000
1962-04-01 -0.8000036641828318000
1962-07-01 1.3721228666189418000
1962-10-01 -2.0051754008509692000
1963-01-01 0.1118820009550814300
1963-04-01 -1.4401083438278781000
1963-07-01 4.3043477563481090000
1963-10-01 -2.3216777233347180000
1964-01-01 3.1336497822097080000
1964-04-01 -1.3304539269193212000
1964-07-01 1.1921237242726963000
1964-10-01 -3.4331429320887095000
1965-01-01 2.5072930539859333000
1965-04-01 -1.1231510811192490000
1965-07-01 2.7556251076780650000
1965-10-01 2.3627111130489653000
1966-01-01 2.3116181850674830000
1966-04-01 -3.2313001971604454000
1966-07-01 -0.5507049337460981000
1966-10-01 0.0700753563258174800
1967-01-01 1.7352191631701108000
1967-04-01 -1.8909767849331054000
1967-07-01 0.1895179377879082400
1967-10-01 -2.4636502397549970000
1968-01-01 3.0410700253079654000
1968-04-01 1.8635576079359302000
1968-07-01 -0.7326245662780099000
1968-10-01 -2.9531702249761267000
1969-01-01 2.1039872332495870000
1969-04-01 -2.3069892882640994000
1969-07-01 -0.3853161876000124000
1969-10-01 -3.4576001909896980000
1970-01-01 0.1674402145298312400
1970-04-01 -0.0878526217849967800
1970-07-01 1.9448410675012646000
1970-10-01 -3.8007543540897766000
1971-01-01 5.6901192366500500000
1971-04-01 -1.9841023053224400000
1971-07-01 0.1672001964263531100
1971-10-01 -3.9140330877027614000
1972-01-01 0.3701990388071150000
1972-04-01 3.4375477621266275000
1972-07-01 -1.0603069878211357000
1972-10-01 -0.9879142120175500000
1973-01-01 2.6880605180496900000
1973-04-01 0.8303501132917364000
1973-07-01 -4.4405491296653725000
1973-10-01 0.2338442625192808700
1974-01-01 -4.3105464757370155000
1974-04-01 -0.2574244007288131000
1974-07-01 -4.2505489653152650000
1974-10-01 2.2262995554810865000
1975-01-01 1.8184792757380890000
1975-04-01 2.6382475835647012000
1975-07-01 1.0870902774358329000
1975-10-01 0.3567056219227927000
1976-01-01 2.2988762893897987000
1976-04-01 -1.5075791398237235000
1976-07-01 -1.7575905572378898000
1976-10-01 -1.3407484342688465000
1977-01-01 -0.9157997242559060000
1977-04-01 1.1181106928468036000
1977-07-01 2.5528764761983584000
1977-10-01 -3.9266868697367614000
1978-01-01 -1.9171195458224508000
1978-04-01 6.6784930200081060000
1978-07-01 -0.3948071338081227000
1978-10-01 0.5691383349104714000
1979-01-01 -1.8066109407377087000
1979-04-01 -1.8165374265497007000
1979-07-01 1.1026442321638910000
1979-10-01 -0.4314621273352510000
1980-01-01 0.6117767490025183000
1980-04-01 -2.2046167604998677000
1980-07-01 -0.6384131188581784000
1980-10-01 0.4335928449245231000
1981-01-01 5.0015619485892080000
1981-04-01 -4.7762974544724180000
1981-07-01 3.2648683571320443000
1981-10-01 -1.7527876642399220000
1982-01-01 -4.5540946519910870000
1982-04-01 1.6095874328681012000
1982-07-01 -1.4112939941964540000
1982-10-01 0.2578358104080405000
1983-01-01 0.4475663253675866000
1983-04-01 2.0719483817312048000
1983-07-01 0.1312294816573300600
1983-10-01 0.8865706421811462000
1984-01-01 0.5303060487069217000
1984-04-01 1.3948129299788694000
1984-07-01 0.1192871699959941500
1984-10-01 -0.1833032983243529600
1985-01-01 0.6288423902091533000
1985-04-01 0.2938316214027706000
1985-07-01 3.0219517171723984000
1985-10-01 -0.5338886986742841000
1986-01-01 0.3830346501149690700
1986-04-01 -0.3759904356459378000
1986-07-01 0.6402481512943415000
1986-10-01 -0.9813410488524483000
1987-01-01 -0.6356559056675614000
1987-04-01 0.1503492976564529000
1987-07-01 -1.2781449752777367000
1987-10-01 1.9900209102768450000
1988-01-01 -1.6393482875141934000
1988-04-01 1.0270519417078359000
1988-07-01 -1.0125880778578702000
1988-10-01 1.1614833182436728000
1989-01-01 0.6113124279157394000
1989-04-01 0.7412773065121027000
1989-07-01 1.3960765066704248000
1989-10-01 -1.4289561127318677000
1990-01-01 1.0354448952517687000
1990-04-01 -0.1935413376414031300
1990-07-01 -0.6125165788105175000
1990-10-01 -2.1218051423205280000
1991-01-01 0.1138442874519791100
1991-04-01 1.1517459793776350000
1991-07-01 -1.2363251127954973000
1991-10-01 -0.4276953305047205300
1992-01-01 2.4931582097131680000
1992-04-01 -0.0319671759990301650
1992-07-01 0.8382735882638761000
1992-10-01 0.8245961724550228000
1993-01-01 -2.5652342779242185000
1993-04-01 -0.4261280217607302000
1993-07-01 -0.9563590882617893000
1993-10-01 0.8162113826032236000
1994-01-01 -0.2880460554623458000
1994-04-01 0.4914027599067769500
1994-07-01 -1.7973863348354762000
1994-10-01 -0.1426998575723755000
1995-01-01 -1.8842256253978618000
1995-04-01 -0.7798257968331739000
1995-07-01 0.1865320341653014500
1995-10-01 -0.6922565656825830000
1996-01-01 0.2713956746970954000
1996-04-01 1.8819828029133712000
1996-07-01 -0.3168448781098925400
1996-10-01 0.3038551084223551400
1997-01-01 -1.7071751013775076000
1997-04-01 1.9601730359521274000
1997-07-01 -0.1962954831503910000
1997-10-01 -1.3320243380439305000
1998-01-01 -0.0302505683617099870
1998-04-01 0.1134302852243406400
1998-07-01 1.4861367938959145000
1998-10-01 2.2160755764706215000
1999-01-01 0.1338379934059685500
1999-04-01 -0.4154850833360171400
1999-07-01 1.2253541339501015000
1999-10-01 1.7628795609388235000
2000-01-01 -2.5178679045184884000
2000-04-01 3.2996473976814227000
2000-07-01 -2.1323267223189886000
2000-10-01 0.5583452618689467000
2001-01-01 -1.6349388450214730000
2001-04-01 2.9365648363108305000
2001-07-01 -1.0866909047936628000
2001-10-01 1.4823740342915600000
2002-01-01 1.3846788938708300000
2002-04-01 -0.8235755783117402000
2002-07-01 -0.2284294630902098700
2002-10-01 -0.8499874667923591000
2003-01-01 0.0021042904800176836
2003-04-01 1.6481462249382590000
2003-07-01 2.6863394352605594000
2003-10-01 0.1820396897829473800
2004-01-01 -1.6857015408780127000
2004-04-01 -1.0282136681107970000
2004-07-01 -0.1483070544923555700
2004-10-01 -0.2536909462858798000
2005-01-01 0.1496883294272120000
2005-04-01 -1.4445578148643266000
2005-07-01 0.2206419824512218500
2005-10-01 -2.0039243443782233000
2006-01-01 1.2523562857856565000
2006-04-01 -1.8622968512693723000
2006-07-01 -1.6462741410276682000
2006-10-01 1.0898485964236780000
2007-01-01 -1.6755198985471755000
2007-04-01 -0.2845091448892166400
2007-07-01 0.4316879295895522700
2007-10-01 0.8003771851206630000
2008-01-01 -1.8168673384433982000
2008-04-01 2.7486682555317756000
2008-07-01 -0.0947722671287015000
2008-10-01 -2.5639744304629497000
2009-01-01 2.9082383039486115000
2009-04-01 2.6057696940072854000
2009-07-01 -0.1904995328788015600
2009-10-01 1.9243250659516011000
2010-01-01 -0.7019606294376407000
2010-04-01 -0.0400015403716926800
2010-07-01 0.5402704714111689000
2010-10-01 -0.2380488665909899200
2011-01-01 -3.8529293785407956000
2011-04-01 0.4420919309854707000
2011-07-01 -2.2540790981678870000
2011-10-01 2.0141085230065300000
2012-01-01 -0.2805992839623831500
2012-04-01 -0.8002668260030026000
2012-07-01 -0.7175212424794605000
2012-10-01 -1.4875668579584789000
2013-01-01 1.1371335379981390000
2013-04-01 -1.2298099135998113000
2013-07-01 0.7233571641101421000
2013-10-01 0.5512863311184886000
2014-01-01 -3.5604366429582384000
2014-04-01 1.3413401240306102000
2014-07-01 1.1129790869817218000
2014-10-01 -1.3528823753026664000
2015-01-01 1.1604249228885222000
2015-04-01 0.1663129573969088800
2015-07-01 -0.8439357908775567000
2015-10-01 -0.6181112499724016000
2016-01-01 0.8080753054338640000
2016-04-01 -0.6118690128912633000
2016-07-01 0.7153087247680414000
2016-10-01 -0.0399249257839621940
2017-01-01 -1.2095448860716644000
2017-04-01 -1.1487299914152909000
2017-07-01 0.2500060176586512700
2017-10-01 0.1877427385582069200
2018-01-01 -0.4821105407387281000
2018-04-01 -1.5899032864539628000
2018-07-01 -0.8106093812667647000
2018-10-01 -2.1967289790926700000
2019-01-01 0.4045625063870967300
2019-04-01 0.7911145934157058000
2019-07-01 2.2621885579746346000
2019-10-01 1.7106931872754287000
2020-01-01 -3.1620588314172347000
2020-04-01 -17.4863643986080040000
2020-07-01 18.7304649237737950000
2020-10-01 -2.4451003790641987000
2021-01-01 0.5192976762351391000
2021-04-01 0.5987688684681615000
2021-07-01 -1.4600562068306842000
2021-10-01 1.8687502972262402000
2022-01-01 -4.3055663411480625000
2022-04-01 -1.7236611183598034000
2022-07-01 1.3102487601607782000
2022-10-01 1.5119323421447972000
2023-01-01 1.2688484566679017000
2023-04-01 0.7079017443313785000
2023-07-01 2.0859913926364944000
2023-10-01 1.3349614432085573000
2024-01-01 -0.5787118553471733000
2024-04-01 1.3752327564901630000
2024-07-01 1.4474259542088000000
2024-10-01 0.0511129267563425050
2025-01-01 -3.1885339577732910000
2025-04-01 2.3231638865758852000
2025-07-01 2.3595647202994163000
2025-10-01 -0.5667344640367751000
2026-01-01 -0.1487958109169076600

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