Acuity Brands (AYI) - Market capitalization

Market cap: HK$78.41 Billion

As of January 2026 Acuity Brands has a market cap of HK$78.41 Billion. This makes Acuity Brands the world's 1983th 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 Acuity Brands from 2001 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	HK$78.41 B	-12.15%
2025	HK$89.25 B	24.64%
2024	HK$71.61 B	44.99%
2023	HK$49.39 B	19%
2022	HK$41.50 B	-28.28%
2021	HK$57.86 B	69.42%
2020	HK$34.15 B	-19.58%
2019	HK$42.47 B	18.39%
2018	HK$35.87 B	-37.79%
2017	HK$57.67 B	-26.48%
2016	HK$78.45 B	-0.5%
2015	HK$78.84 B	68.36%
2014	HK$46.83 B	29.46%
2013	HK$36.17 B	63.13%
2012	HK$22.17 B	29.91%
2011	HK$17.07 B	-10.41%
2010	HK$19.05 B	61.75%
2009	HK$11.78 B	8.18%
2008	HK$10.88 B	-25.03%
2007	HK$14.52 B	-26.79%
2006	HK$19.83 B	79.38%
2005	HK$11.05 B	3.3%
2004	HK$10.70 B	28.12%
2003	HK$8.35 B	90.8%
2002	HK$4.37 B	12.36%
2001	HK$3.89 B

End of Day market cap according to different sources

On Jan 13th, 2026 the market cap of Acuity Brands was reported to be:

HK$77.88 Billion

by Nasdaq

HK$78.03 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Orion Energy Systems OESX	HK$0.46 B	-99.41%	🇺🇸 USA
Philips PHG	HK$221.39 B	182.34%	🇳🇱 Netherlands
Canadian Solar CSIQ	HK$11.14 B	-85.79%	🇨🇦 Canada

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 Acuity Brands (AYI)

Market cap: HK$78.41 Billion