COEkaki Weighted Premium Index
One number for Singapore COE premium levels. Weighted across all five categories. Base 100 = first round of 2015.
Current index
185.2
As of 23 Sep 2026 — round 2
Change vs previous calendar month
+3.7
Index points
Rounds tracked
624
Since Apr 1999
Index history
View data as table
| Date | Value |
|---|---|
| 1999-04-07 | 50.1 |
| 1999-05-05 | 58.8 |
| 1999-06-02 | 67.1 |
| 1999-07-07 | 66.1 |
| 1999-08-04 | 66 |
| 1999-09-01 | 62.9 |
| 1999-10-06 | 58.9 |
| 1999-11-03 | 60.8 |
| 1999-12-01 | 64.6 |
| 2000-01-05 | 67.8 |
| 2000-02-02 | 61.2 |
| 2000-03-01 | 66.6 |
| 2000-04-05 | 48.8 |
| 2000-05-03 | 53.1 |
| 2000-06-07 | 50.1 |
| 2000-07-05 | 46.2 |
| 2000-08-02 | 48.1 |
| 2000-09-06 | 50.4 |
| 2000-10-04 | 37.9 |
| 2000-11-01 | 45.9 |
| 2000-12-06 | 39.9 |
| 2001-01-03 | 28.9 |
| 2001-02-07 | 42.8 |
| 2001-03-07 | 47.3 |
| 2001-04-04 | 44.6 |
| 2001-05-02 | 23 |
| 2001-06-06 | 37.5 |
| 2001-07-04 | 39.4 |
| 2001-08-01 | 39.3 |
| 2001-09-05 | 40.7 |
| 2001-10-03 | 39.8 |
| 2001-10-17 | 36.7 |
| 2001-11-07 | 39 |
| 2001-11-21 | 42.2 |
| 2001-12-05 | 43.4 |
| 2001-12-19 | 41.8 |
| 2002-01-02 | 42.9 |
| 2002-01-16 | 42.7 |
| 2002-02-06 | 42.6 |
| 2002-02-20 | 42.2 |
| 2002-03-06 | 44.4 |
| 2002-03-20 | 46.9 |
| 2002-04-03 | 53.2 |
| 2002-04-17 | 54.3 |
| 2002-05-01 | 52.3 |
| 2002-05-15 | 49.9 |
| 2002-06-05 | 46 |
| 2002-06-19 | 43.5 |
| 2002-07-03 | 43.1 |
| 2002-07-17 | 41.5 |
| 2002-08-07 | 42.4 |
| 2002-08-21 | 43 |
| 2002-09-04 | 42.3 |
| 2002-09-18 | 38.8 |
| 2002-10-02 | 42.9 |
| 2002-10-16 | 41.9 |
| 2002-11-06 | 38.5 |
| 2002-11-20 | 38.4 |
| 2002-12-04 | 37.7 |
| 2002-12-18 | 34.4 |
| 2003-01-01 | 38.8 |
| 2003-01-15 | 35.1 |
| 2003-02-05 | 43.6 |
| 2003-02-19 | 40.4 |
| 2003-03-05 | 37.4 |
| 2003-03-19 | 35.3 |
| 2003-04-02 | 36.4 |
| 2003-04-16 | 37.1 |
| 2003-05-07 | 38.8 |
| 2003-05-21 | 41.7 |
| 2003-06-04 | 42.4 |
| 2003-06-18 | 42.1 |
| 2003-07-02 | 43.4 |
| 2003-07-16 | 42.6 |
| 2003-08-06 | 41.4 |
| 2003-08-20 | 40.5 |
| 2003-09-03 | 36 |
| 2003-09-17 | 40.4 |
| 2003-10-01 | 38.1 |
| 2003-10-15 | 37.3 |
| 2003-11-05 | 34.9 |
| 2003-11-19 | 34.8 |
| 2003-12-03 | 32.3 |
| 2003-12-17 | 31 |
| 2004-01-07 | 31.7 |
| 2004-01-21 | 30.2 |
| 2004-02-04 | 31.5 |
| 2004-02-18 | 30.7 |
| 2004-03-03 | 33.3 |
| 2004-03-17 | 33.6 |
| 2004-04-07 | 37.2 |
| 2004-04-21 | 38 |
| 2004-05-05 | 36.9 |
| 2004-05-19 | 37.3 |
| 2004-06-02 | 39.4 |
| 2004-06-16 | 39.1 |
| 2004-07-07 | 37.7 |
| 2004-07-21 | 36 |
| 2004-08-04 | 35.6 |
| 2004-08-18 | 34.5 |
| 2004-09-01 | 36.1 |
| 2004-09-15 | 33.5 |
| 2004-10-06 | 30.2 |
| 2004-10-20 | 30.9 |
| 2004-11-03 | 28.9 |
| 2004-11-17 | 28 |
| 2004-12-01 | 29 |
| 2004-12-15 | 25.9 |
| 2005-01-05 | 22 |
| 2005-01-19 | 25.5 |
| 2005-02-02 | 22.9 |
| 2005-02-16 | 23.2 |
| 2005-03-02 | 28.3 |
| 2005-03-16 | 24.9 |
| 2005-04-06 | 23.5 |
| 2005-04-20 | 24 |
| 2005-05-04 | 22.8 |
| 2005-05-18 | 22.3 |
| 2005-06-01 | 22.8 |
| 2005-06-15 | 22 |
| 2005-07-06 | 21.6 |
| 2005-07-20 | 22.3 |
| 2005-08-03 | 21.9 |
| 2005-08-17 | 21.8 |
| 2005-09-07 | 22.5 |
| 2005-09-21 | 20.5 |
| 2005-10-05 | 16 |
| 2005-10-19 | 19.6 |
| 2005-11-02 | 20.2 |
| 2005-11-16 | 19.8 |
| 2005-12-07 | 18.7 |
| 2005-12-21 | 14.9 |
| 2006-01-04 | 15.3 |
| 2006-01-18 | 12.5 |
| 2006-02-01 | 13.6 |
| 2006-02-15 | 14.5 |
| 2006-03-01 | 16.7 |
| 2006-03-15 | 17.9 |
| 2006-04-05 | 17.9 |
| 2006-04-19 | 17.9 |
| 2006-05-03 | 16 |
| 2006-05-17 | 15.9 |
| 2006-06-07 | 16.4 |
| 2006-06-21 | 14.2 |
| 2006-07-05 | 14.5 |
| 2006-07-19 | 14.7 |
| 2006-08-02 | 17.2 |
| 2006-08-16 | 18.9 |
| 2006-09-06 | 20.4 |
| 2006-09-20 | 20 |
| 2006-10-04 | 17.6 |
| 2006-10-18 | 15.6 |
| 2006-11-01 | 17.9 |
| 2006-11-15 | 17.8 |
| 2006-12-06 | 17.5 |
| 2006-12-20 | 15 |
| 2007-01-03 | 16.1 |
| 2007-01-17 | 15.5 |
| 2007-02-07 | 15.4 |
| 2007-02-21 | 8.6 |
| 2007-03-07 | 16.8 |
| 2007-03-21 | 18.3 |
| 2007-04-04 | 19.1 |
| 2007-04-18 | 20.6 |
| 2007-05-02 | 23.3 |
| 2007-05-16 | 24.9 |
| 2007-06-06 | 24.4 |
| 2007-06-20 | 23.3 |
| 2007-07-04 | 21.7 |
| 2007-07-18 | 22.3 |
| 2007-08-01 | 23.5 |
| 2007-08-15 | 17.7 |
| 2007-09-05 | 24.9 |
| 2007-09-19 | 25.8 |
| 2007-10-03 | 24.2 |
| 2007-10-17 | 22.3 |
| 2007-11-07 | 24.7 |
| 2007-11-21 | 22.3 |
| 2007-12-05 | 18.8 |
| 2007-12-19 | 21.2 |
| 2008-01-02 | 21.4 |
| 2008-01-16 | 18.4 |
| 2008-02-06 | 18.3 |
| 2008-02-20 | 20.7 |
| 2008-03-05 | 23.8 |
| 2008-03-19 | 25.1 |
| 2008-04-02 | 26.5 |
| 2008-04-16 | 24.4 |
| 2008-05-07 | 20.4 |
| 2008-05-21 | 23.4 |
| 2008-06-04 | 21.2 |
| 2008-06-18 | 20.5 |
| 2008-07-02 | 21.5 |
| 2008-07-16 | 20.3 |
| 2008-08-06 | 18.6 |
| 2008-08-20 | 19.5 |
| 2008-09-03 | 17.5 |
| 2008-09-17 | 20.1 |
| 2008-10-01 | 20.8 |
| 2008-10-15 | 14.3 |
| 2008-11-05 | 13.7 |
| 2008-11-19 | 5.1 |
| 2008-12-03 | 10.1 |
| 2008-12-17 | 6.8 |
| 2009-01-07 | 6.1 |
| 2009-01-21 | 2.8 |
| 2009-02-04 | 2 |
| 2009-02-18 | 6.9 |
| 2009-03-04 | 7.4 |
| 2009-03-18 | 7.6 |
| 2009-04-01 | 10.5 |
| 2009-04-15 | 10.8 |
| 2009-05-06 | 11.5 |
| 2009-05-20 | 13.5 |
| 2009-06-03 | 16.9 |
| 2009-06-17 | 20 |
| 2009-07-01 | 22.9 |
| 2009-07-15 | 24.6 |
| 2009-08-05 | 24.5 |
| 2009-08-19 | 23.2 |
| 2009-09-02 | 26.6 |
| 2009-09-16 | 25.5 |
| 2009-10-07 | 26.2 |
| 2009-10-21 | 27.5 |
| 2009-11-04 | 25.4 |
| 2009-11-18 | 25.3 |
| 2009-12-02 | 26.7 |
| 2009-12-16 | 25.8 |
| 2010-01-06 | 27.3 |
| 2010-01-20 | 30.6 |
| 2010-02-03 | 31.1 |
| 2010-02-17 | 32.4 |
| 2010-03-03 | 35.2 |
| 2010-03-17 | 48.5 |
| 2010-04-07 | 58.5 |
| 2010-04-21 | 52 |
| 2010-05-05 | 47.5 |
| 2010-05-19 | 46 |
| 2010-06-02 | 50.8 |
| 2010-06-16 | 51.7 |
| 2010-07-07 | 48.5 |
| 2010-07-21 | 56.2 |
| 2010-08-04 | 54 |
| 2010-08-18 | 52.2 |
| 2010-09-01 | 55.7 |
| 2010-09-15 | 52.7 |
| 2010-10-06 | 54.7 |
| 2010-10-20 | 55.4 |
| 2010-11-03 | 57 |
| 2010-11-17 | 61.8 |
| 2010-12-01 | 77.6 |
| 2010-12-15 | 84.5 |
| 2011-01-05 | 79.3 |
| 2011-01-19 | 71.9 |
| 2011-02-02 | 65.4 |
| 2011-02-16 | 73.8 |
| 2011-03-02 | 73.7 |
| 2011-03-16 | 71.1 |
| 2011-04-06 | 69 |
| 2011-04-20 | 69.5 |
| 2011-05-04 | 69.3 |
| 2011-05-18 | 70.9 |
| 2011-06-01 | 79.8 |
| 2011-06-15 | 81.7 |
| 2011-07-06 | 86.2 |
| 2011-07-20 | 89.8 |
| 2011-08-03 | 84.1 |
| 2011-08-17 | 80.6 |
| 2011-09-07 | 79.8 |
| 2011-09-21 | 78.3 |
| 2011-10-05 | 79.8 |
| 2011-10-19 | 91.9 |
| 2011-11-02 | 93.9 |
| 2011-11-16 | 93 |
| 2011-12-07 | 88.6 |
| 2011-12-21 | 85.3 |
| 2012-01-04 | 80.1 |
| 2012-01-18 | 83 |
| 2012-02-01 | 91 |
| 2012-02-15 | 96.8 |
| 2012-03-07 | 96.5 |
| 2012-03-21 | 98.9 |
| 2012-04-04 | 102.3 |
| 2012-04-18 | 111.3 |
| 2012-05-02 | 110.5 |
| 2012-05-16 | 103.8 |
| 2012-06-06 | 102.5 |
| 2012-06-20 | 103.4 |
| 2012-07-04 | 102.8 |
| 2012-07-18 | 113.3 |
| 2012-08-01 | 118.7 |
| 2012-08-15 | 111.9 |
| 2012-09-05 | 106.7 |
| 2012-09-19 | 108.9 |
| 2012-10-03 | 106.7 |
| 2012-10-17 | 111.1 |
| 2012-11-07 | 119.2 |
| 2012-11-21 | 120.1 |
| 2012-12-05 | 120.4 |
| 2012-12-19 | 123.5 |
| 2013-01-02 | 130 |
| 2013-01-16 | 129 |
| 2013-02-06 | 124.6 |
| 2013-02-20 | 119 |
| 2013-03-06 | 92.9 |
| 2013-03-20 | 97.6 |
| 2013-04-03 | 91.1 |
| 2013-04-17 | 88.5 |
| 2013-05-01 | 88.4 |
| 2013-05-15 | 93.3 |
| 2013-06-05 | 101 |
| 2013-06-19 | 107.6 |
| 2013-07-03 | 105.8 |
| 2013-07-17 | 106.4 |
| 2013-08-07 | 108.7 |
| 2013-08-21 | 109.2 |
| 2013-09-04 | 110.6 |
| 2013-09-18 | 120.7 |
| 2013-10-02 | 126.8 |
| 2013-10-16 | 118 |
| 2013-11-06 | 111.4 |
| 2013-11-20 | 108.4 |
| 2013-12-04 | 102.2 |
| 2013-12-18 | 103.7 |
| 2014-01-01 | 104.9 |
| 2014-01-15 | 105.2 |
| 2014-02-05 | 102.6 |
| 2014-02-19 | 108.1 |
| 2014-03-05 | 110.3 |
| 2014-03-19 | 112.4 |
| 2014-04-02 | 112 |
| 2014-04-16 | 99 |
| 2014-05-07 | 89 |
| 2014-05-21 | 92.1 |
| 2014-06-04 | 90.7 |
| 2014-06-18 | 88.6 |
| 2014-07-02 | 87.9 |
| 2014-07-16 | 90.2 |
| 2014-08-06 | 94.2 |
| 2014-08-20 | 97.7 |
| 2014-09-03 | 97.2 |
| 2014-09-17 | 95.3 |
| 2014-10-01 | 96.9 |
| 2014-10-15 | 97.4 |
| 2014-11-05 | 97.5 |
| 2014-11-19 | 100.9 |
| 2014-12-03 | 101.2 |
| 2014-12-17 | 98.5 |
| 2015-01-07 | 100 |
| 2015-01-21 | 100.7 |
| 2015-02-04 | 94.5 |
| 2015-02-18 | 89 |
| 2015-03-04 | 93.3 |
| 2015-03-18 | 97.7 |
| 2015-04-01 | 103.7 |
| 2015-04-15 | 103.1 |
| 2015-05-06 | 102.6 |
| 2015-05-20 | 100.5 |
| 2015-06-03 | 99.5 |
| 2015-06-17 | 94.7 |
| 2015-07-01 | 89 |
| 2015-07-15 | 81.6 |
| 2015-08-05 | 82.6 |
| 2015-08-19 | 84.2 |
| 2015-09-02 | 84.1 |
| 2015-09-16 | 81.9 |
| 2015-10-07 | 80.6 |
| 2015-10-21 | 82.1 |
| 2015-11-04 | 80.5 |
| 2015-11-18 | 84.8 |
| 2015-12-02 | 82.9 |
| 2015-12-16 | 78 |
| 2016-01-06 | 71.9 |
| 2016-01-20 | 72.4 |
| 2016-02-03 | 62.1 |
| 2016-02-17 | 64.8 |
| 2016-03-02 | 67.5 |
| 2016-03-16 | 66.5 |
| 2016-04-06 | 66.9 |
| 2016-04-20 | 69.2 |
| 2016-05-04 | 70 |
| 2016-05-18 | 68.8 |
| 2016-06-01 | 77.7 |
| 2016-06-15 | 79.7 |
| 2016-07-06 | 77.4 |
| 2016-07-20 | 79.2 |
| 2016-08-03 | 79 |
| 2016-08-17 | 78.4 |
| 2016-09-07 | 78 |
| 2016-09-21 | 76 |
| 2016-10-05 | 75.1 |
| 2016-10-19 | 76.6 |
| 2016-11-02 | 77.7 |
| 2016-11-16 | 75 |
| 2016-12-07 | 69.1 |
| 2016-12-21 | 72.4 |
| 2017-01-05 | 73.7 |
| 2017-01-18 | 74 |
| 2017-02-08 | 69.7 |
| 2017-02-24 | 72.2 |
| 2017-03-15 | 74.7 |
| 2017-03-29 | 75.7 |
| 2017-04-12 | 75.8 |
| 2017-04-26 | 72.6 |
| 2017-05-11 | 72.9 |
| 2017-05-24 | 69.2 |
| 2017-06-07 | 67.9 |
| 2017-06-21 | 64.4 |
| 2017-07-05 | 66.5 |
| 2017-07-19 | 67.7 |
| 2017-08-10 | 71.7 |
| 2017-08-23 | 67.3 |
| 2017-09-06 | 62.5 |
| 2017-09-20 | 67 |
| 2017-10-04 | 66.1 |
| 2017-10-19 | 68.2 |
| 2017-11-08 | 77.1 |
| 2017-11-22 | 77 |
| 2017-12-06 | 69.7 |
| 2017-12-20 | 63.1 |
| 2018-01-04 | 63 |
| 2018-01-17 | 58.3 |
| 2018-02-07 | 58.8 |
| 2018-02-21 | 54.8 |
| 2018-03-07 | 55.8 |
| 2018-03-21 | 53.9 |
| 2018-04-04 | 53.5 |
| 2018-04-18 | 54.3 |
| 2018-05-09 | 55 |
| 2018-05-23 | 53.8 |
| 2018-06-06 | 51.5 |
| 2018-06-20 | 48.9 |
| 2018-07-04 | 41.7 |
| 2018-07-18 | 46.9 |
| 2018-08-08 | 48.4 |
| 2018-08-23 | 46.1 |
| 2018-09-05 | 44.3 |
| 2018-09-19 | 42.9 |
| 2018-10-03 | 43.4 |
| 2018-10-17 | 42.1 |
| 2018-11-08 | 43.7 |
| 2018-11-21 | 40.9 |
| 2018-12-05 | 40 |
| 2018-12-19 | 41.3 |
| 2019-01-09 | 42.4 |
| 2019-01-23 | 43.5 |
| 2019-02-08 | 43.9 |
| 2019-02-20 | 45.1 |
| 2019-03-06 | 46.1 |
| 2019-03-20 | 48.4 |
| 2019-04-03 | 53.4 |
| 2019-04-17 | 59.7 |
| 2019-05-08 | 61 |
| 2019-05-23 | 51.6 |
| 2019-06-06 | 50.3 |
| 2019-06-19 | 46.1 |
| 2019-07-03 | 45.3 |
| 2019-07-17 | 47.8 |
| 2019-08-07 | 52 |
| 2019-08-21 | 50.5 |
| 2019-09-04 | 48.4 |
| 2019-09-18 | 49.4 |
| 2019-10-09 | 53.2 |
| 2019-10-23 | 52.7 |
| 2019-11-06 | 50.1 |
| 2019-11-20 | 51 |
| 2019-12-04 | 50 |
| 2019-12-18 | 48.6 |
| 2020-01-08 | 50.7 |
| 2020-01-22 | 50.9 |
| 2020-02-05 | 44 |
| 2020-02-19 | 46.3 |
| 2020-03-04 | 45.8 |
| 2020-03-18 | 43.2 |
| 2020-07-08 | 48.7 |
| 2020-07-22 | 47.6 |
| 2020-08-05 | 49.4 |
| 2020-08-19 | 52.2 |
| 2020-09-09 | 55.5 |
| 2020-09-23 | 56 |
| 2020-10-07 | 55.3 |
| 2020-10-21 | 55.9 |
| 2020-11-04 | 53.7 |
| 2020-11-18 | 56 |
| 2020-12-09 | 60.9 |
| 2020-12-23 | 64.4 |
| 2021-01-06 | 64.3 |
| 2021-01-20 | 67.8 |
| 2021-02-03 | 65.3 |
| 2021-02-17 | 63.3 |
| 2021-03-03 | 62.7 |
| 2021-03-17 | 65.6 |
| 2021-04-07 | 69.4 |
| 2021-04-21 | 79.6 |
| 2021-05-05 | 78.2 |
| 2021-05-19 | 73.5 |
| 2021-06-09 | 77.2 |
| 2021-06-23 | 74 |
| 2021-07-07 | 72.8 |
| 2021-07-22 | 76.2 |
| 2021-08-04 | 73.8 |
| 2021-08-18 | 78.1 |
| 2021-09-08 | 79.1 |
| 2021-09-22 | 83.6 |
| 2021-10-06 | 84.7 |
| 2021-10-20 | 96 |
| 2021-11-03 | 98.8 |
| 2021-11-17 | 97.6 |
| 2021-12-08 | 99 |
| 2021-12-22 | 99.9 |
| 2022-01-05 | 97 |
| 2022-01-19 | 99.8 |
| 2022-02-09 | 104.4 |
| 2022-02-23 | 111.3 |
| 2022-03-09 | 116.6 |
| 2022-03-23 | 120.7 |
| 2022-04-06 | 121.9 |
| 2022-04-20 | 113.8 |
| 2022-05-06 | 114.8 |
| 2022-05-19 | 116.4 |
| 2022-06-08 | 123.4 |
| 2022-06-22 | 127.6 |
| 2022-07-06 | 131.7 |
| 2022-07-20 | 134.3 |
| 2022-08-03 | 133.3 |
| 2022-08-17 | 140.3 |
| 2022-09-07 | 141 |
| 2022-09-21 | 136.3 |
| 2022-10-05 | 127.4 |
| 2022-10-19 | 136.5 |
| 2022-11-09 | 145.5 |
| 2022-11-23 | 146.7 |
| 2022-12-07 | 140.3 |
| 2022-12-21 | 140.6 |
| 2023-01-05 | 132.7 |
| 2023-01-18 | 137.4 |
| 2023-02-08 | 138.3 |
| 2023-02-22 | 146.9 |
| 2023-03-08 | 148 |
| 2023-03-22 | 150.4 |
| 2023-04-05 | 152.6 |
| 2023-04-19 | 158.6 |
| 2023-05-04 | 155.8 |
| 2023-05-17 | 148.7 |
| 2023-06-07 | 155.6 |
| 2023-06-21 | 155.5 |
| 2023-07-05 | 153.7 |
| 2023-07-19 | 153 |
| 2023-08-10 | 160.9 |
| 2023-08-23 | 164 |
| 2023-09-06 | 168.5 |
| 2023-09-20 | 175.6 |
| 2023-10-04 | 179.7 |
| 2023-10-18 | 184.1 |
| 2023-11-08 | 149.1 |
| 2023-11-22 | 158.4 |
| 2023-12-06 | 156.4 |
| 2023-12-20 | 140.5 |
| 2024-01-04 | 113.9 |
| 2024-01-17 | 137.5 |
| 2024-02-07 | 129.6 |
| 2024-02-21 | 124.4 |
| 2024-03-06 | 127.8 |
| 2024-03-20 | 128.5 |
| 2024-04-03 | 133.9 |
| 2024-04-17 | 137.6 |
| 2024-05-08 | 139.5 |
| 2024-05-23 | 139.7 |
| 2024-06-05 | 133.7 |
| 2024-06-20 | 135.5 |
| 2024-07-03 | 135 |
| 2024-07-17 | 135 |
| 2024-08-07 | 140.7 |
| 2024-08-21 | 140.7 |
| 2024-09-04 | 142.8 |
| 2024-09-18 | 147.2 |
| 2024-10-09 | 154 |
| 2024-10-23 | 151.8 |
| 2024-11-06 | 145.1 |
| 2024-11-20 | 138 |
| 2024-12-04 | 138.4 |
| 2024-12-18 | 143.7 |
| 2025-01-08 | 152 |
| 2025-01-22 | 147.1 |
| 2025-02-05 | 138.1 |
| 2025-02-19 | 141.9 |
| 2025-03-05 | 144.6 |
| 2025-03-19 | 149 |
| 2025-04-09 | 151.1 |
| 2025-04-23 | 151.1 |
| 2025-05-07 | 154.3 |
| 2025-05-21 | 152.4 |
| 2025-06-04 | 146.3 |
| 2025-06-18 | 149.9 |
| 2025-07-09 | 153.7 |
| 2025-07-23 | 154.1 |
| 2025-08-06 | 157.6 |
| 2025-08-20 | 160.3 |
| 2025-09-03 | 164.3 |
| 2025-09-17 | 178.1 |
| 2025-10-08 | 185.2 |
| 2025-10-23 | 176.7 |
| 2025-11-05 | 157.9 |
| 2025-11-19 | 166.2 |
| 2025-12-03 | 160.7 |
| 2025-12-17 | 157.3 |
| 2026-01-07 | 156 |
| 2026-01-21 | 161 |
| 2026-02-04 | 152.5 |
| 2026-02-20 | 148.8 |
| 2026-03-04 | 155.1 |
| 2026-03-18 | 158.9 |
| 2026-04-08 | 166 |
| 2026-04-22 | 170 |
| 2026-05-06 | 174.9 |
| 2026-05-20 | 177.6 |
| 2026-06-04 | 177.3 |
| 2026-06-17 | 174.1 |
| 2026-07-08 | 181.2 |
| 2026-07-22 | 179 |
| 2026-08-05 | 177.8 |
| 2026-08-19 | 181.5 |
| 2026-09-09 | 187.2 |
| 2026-09-23 | 185.2 |
How this calculator works
The COEkaki Weighted Premium Index is a weighted composite of Singapore COE quota premiums across all five categories, normalised to a value of 100 at the first round of 2015.
Formula:
composite(round) = 0.35 × cat_A + 0.35 × cat_B + 0.1 × cat_C + 0.05 × cat_D + 0.15 × cat_E
index(round) = (composite(round) / composite(2015_round_1)) × 100An index value of 180 means the weighted COE basket is 1.8 times the price than it was in early 2015. The number is recomputed every round as new LTA data arrives.
Citations welcome — please link back to this page so readers can check the methodology.
What this calculator does not capture
- Captures price level, not affordability (salaries, financing, GDP aren't factored in).
- Does not distinguish vehicle segments within each category.
- Base year of 2015 was chosen as a reset point; other bases would shift the absolute number but not the relative movements.
- A historical measurement, not a forecast.
Frequently asked questions
- What does the COEkaki Weighted Premium Index measure?
- It compares a fixed weighted basket of category premiums with the January 2015 first-exercise basket. The page displays the maintained weights and baseline. It is not an index of whole-vehicle prices, incomes or affordability.
- Why these category weights?
- The weights are editorial choices, not measured sales shares or estimated economic effects. Changing them changes the basket being compared; no category is assigned a verified level of influence on household decisions.
- Can I cite the Index in an article?
- Yes. Please attribute to "COEkaki Weighted Premium Index" with a link to coekaki.com/coe-index. The methodology is public and the number is recalculated every round.
- Does this forecast future prices?
- No — the Index is a historical measurement, not a forecast. It compares historical premium levels. Neither this index nor the Bid Advisor has demonstrated predictive accuracy.