SL Green Realty (SLG) - Market capitalization

Market cap: £2.42 Billion

As of December 2025 SL Green Realty has a market cap of £2.42 Billion. This makes SL Green Realty the world's 3804th 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 SL Green Realty from 1997 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	£2.42 B	-36.26%
2024	£3.80 B	65.72%
2023	£2.29 B	27.4%
2022	£1.80 B	-47.1%
2021	£3.40 B	7.35%
2020	£3.17 B	-42.84%
2019	£5.54 B	6.45%
2018	£5.21 B	-28.96%
2017	£7.33 B	-16.91%
2016	£8.83 B	15.87%
2015	£7.62 B	2.44%
2014	£7.44 B	39.85%
2013	£5.32 B	22.94%
2012	£4.32 B	17.16%
2011	£3.69 B	7.86%
2010	£3.42 B	36.38%
2009	£2.51 B	149.08%
2008	£1.00 B	-63.61%
2007	£2.76 B	-18.02%
2006	£3.37 B	79.64%
2005	£1.88 B	45.88%
2004	£1.28 B	55.99%
2003	£0.82 B	37.85%
2002	£0.59 B	-5.57%
2001	£0.63 B	38.06%
2000	£0.45 B	41.28%
1999	£0.32 B	4.51%
1998	£0.31 B	60.49%
1997	£0.19 B

End of Day market cap according to different sources

On Dec 6th, 2025 the market cap of SL Green Realty was reported to be:

£2.26 Billion

by Nasdaq

£2.42 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Hudson Pacific Properties HPP	£1.14 B	-52.92%	🇺🇸 USA
Douglas Emmett DEI	£1.80 B	-25.64%	🇺🇸 USA
Digital Realty DLR	£43.20 B	1,682.64%	🇺🇸 USA
BXP, Inc. BXP	£9.19 B	279.24%	🇺🇸 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 SL Green Realty (SLG)

Market cap: £2.42 Billion