Market capitalization of GlaxoSmithKline (GSK)

Market cap: C$136.89 Billion

As of December 2025 GlaxoSmithKline has a market cap of C$136.89 Billion. This makes GlaxoSmithKline the world's 209th 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 GlaxoSmithKline from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	C$136.89 B	37.2%
2024	C$99.77 B	-1.34%
2023	C$101.13 B	3.61%
2022	C$97.61 B	-29.8%
2021	C$139.04 B	18.84%
2020	C$117.00 B	-23.03%
2019	C$152.00 B	18.79%
2018	C$127.96 B	15.5%
2017	C$110.78 B	-12.5%
2016	C$126.61 B	-7.85%
2015	C$137.41 B	13.67%
2014	C$120.88 B	-11.98%
2013	C$137.33 B	30.57%
2012	C$105.17 B	-10.24%
2011	C$117.17 B	15.04%
2010	C$101.85 B	-11.72%
2009	C$115.38 B	-1.83%
2008	C$117.53 B	-15.11%
2007	C$138.45 B	-21.68%
2006	C$176.78 B	3.04%
2005	C$171.57 B	1.53%
2004	C$168.98 B	-1.08%
2003	C$170.82 B	-4.14%
2002	C$178.21 B	-27.25%
2001	C$244.96 B	-7.19%
2000	C$263.92 B	79.91%
1999	C$146.70 B	-24.27%
1998	C$193.71 B	58.44%
1997	C$122.26 B	58.59%
1996	C$77.09 B

End of Day market cap according to different sources

On Dec 14th, 2025 the market cap of GlaxoSmithKline was reported to be:

C$137.15 Billion

by Nasdaq

C$135.70 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
AstraZeneca AZN	C$391.15 B	185.73%	🇬🇧 UK
Pfizer PFE	C$207.05 B	51.25%	🇺🇸 USA
Merck MRK	C$345.05 B	152.06%	🇺🇸 USA
Novartis NVS	C$357.41 B	161.09%	🇨🇭 Switzerland
Sanofi SNY	C$160.83 B	17.48%	🇫🇷 France
Teva Pharmaceutical Industries TEVA	C$47.62 B	-65.21%	🇮🇱 Israel
Dynavax Technologies DVAX	C$1.75 B	-98.72%	🇺🇸 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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