CoStar Group, Inc. (CSGP) stock

CSGPNasdaqServices-Business Services, NECFiscal year ends December 31

Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 28, 2026Score 14/308% below fair value

$30.96+0.86 (+2.86%)

Close on Nov 13, 2026Market cap $12.46BP/E 70.4Yield –

CoStar pe ratio

The price-to-earnings ratio is the share price divided by diluted earnings per share over the trailing twelve months.

CoStar's pe ratio was 159.3× on Nov 11, 2026, against 253.7× a year earlier. Over the last 5 years it ranged from 74.0× to 536.7×, with a median of 116.7×.

PE Ratio at the end of each year

Period	Period end	Value	Change (pts)
2026	Nov 11, 2026	159.3×	−116.0
2025	Oct 31, 2025	275.2×	+112.5
2024	Dec 31, 2024	162.7×	+74.4
2023	Dec 29, 2023	88.3×	−1.6
2022	Dec 30, 2022	89.9×	−41.6
2021	Dec 31, 2021	131.5×	+7.8
2020	Dec 31, 2020	123.7×	+53.3
2019	Dec 31, 2019	70.4×	+8.7
2018	Dec 31, 2018	61.7×	−28.0
2017	Dec 29, 2017	89.7×	+11.8
2016	Dec 30, 2016	77.9×	−148.3
2015	Jul 31, 2015	226.2×	+105.4
2014	Dec 31, 2014	120.8×	−112.8
2013	Dec 31, 2013	233.7×	+4.5
2012	Dec 31, 2012	229.2×	+123.2
2011	Dec 30, 2011	105.9×	+44.7
2010	Dec 31, 2010	61.2×	–