UDR Apartments (UDR) - Market capitalization

Market cap: $13.18 Billion USD

As of December 2025 UDR Apartments has a market cap of $13.18 Billion USD. This makes UDR Apartments the world's 1565th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of UDR Apartments from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	$13.18 B	-19.14%
2024	$16.30 B	19.88%
2023	$13.60 B	-35.65%
2022	$21.13 B	13.97%
2021	$18.54 B	63.9%
2020	$11.31 B	-17.74%
2019	$13.75 B	26.02%
2018	$10.91 B	5.85%
2017	$10.31 B	5.79%
2016	$9.74 B	-0.9%
2015	$9.83 B	25.12%
2014	$7.86 B	34.29%
2013	$5.85 B	-1.57%
2012	$5.94 B	8.19%
2011	$5.49 B	28.09%
2010	$4.29 B	67.94%
2009	$2.55 B	36.1%
2008	$1.87 B	-29.04%
2007	$2.64 B	-38.35%
2006	$4.29 B	36.65%
2005	$3.14 B	-7.56%
2004	$3.39 B	39.04%
2003	$2.44 B	40.14%
2002	$1.74 B	17.44%
2001	$1.48 B	34.36%
2000	$1.10 B	8.94%
1999	$1.01 B	-5.08%
1998	$1.06 B	-14%
1997	$1.24 B	-2.2%
1996	$1.27 B

End of Day market cap according to different sources

On Dec 8th, 2025 the market cap of UDR Apartments was reported to be:

$11.53 Billion USD

by Nasdaq

$13.13 Billion USD

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Martin Midstream Partners MMLP	$0.10 B	-99.18%	🇺🇸 USA
Diamondrock Hospitality Company DRH	$1.80 B	-86.35%	🇺🇸 USA
Alexander's, Inc. ALX	$1.10 B	-91.63%	🇺🇸 USA
Washington Prime Group WPG	$20.35 M	-99.85%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of UDR Apartments (UDR)

Market cap: $13.18 Billion USD