NorthWestern Energy (NWE) - Market capitalization

Market cap: NZ$8.17 Billion

As of October 2026 NorthWestern Energy has a market cap of NZ$8.17 Billion. This makes NorthWestern Energy the world's 3308th 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 NorthWestern Energy from 2004 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	NZ$8.17 B	19.9%
2025	NZ$6.81 B	18.32%
2024	NZ$5.76 B	16.92%
2023	NZ$4.92 B	-10.91%
2022	NZ$5.53 B	20.26%
2021	NZ$4.59 B	12.53%
2020	NZ$4.08 B	-23.86%
2019	NZ$5.36 B	20.4%
2018	NZ$4.45 B	9.17%
2017	NZ$4.08 B	2.95%
2016	NZ$3.96 B	3.91%
2015	NZ$3.81 B	12.71%
2014	NZ$3.38 B	65.87%
2013	NZ$2.04 B	29.98%
2012	NZ$1.57 B	-5.51%
2011	NZ$1.66 B	22.83%
2010	NZ$1.35 B	4.97%
2009	NZ$1.28 B	-11.26%
2008	NZ$1.45 B	-3.16%
2007	NZ$1.50 B	-16.14%
2006	NZ$1.78 B	9.99%
2005	NZ$1.62 B	16.06%
2004	NZ$1.40 B

End of Day market cap according to different sources

On Oct 8th, 2026 the market cap of NorthWestern Energy was reported to be:

NZ$8.17 Billion

by Nasdaq

NZ$8.17 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Ameren AEE	NZ$50.19 B	514.10%	🇺🇸 USA
CenterPoint Energy CNP	NZ$45.06 B	451.24%	🇺🇸 USA
Exelon Corporation EXC	NZ$76.54 B	836.44%	🇺🇸 USA
NiSource NI	NZ$34.60 B	323.36%	🇺🇸 USA
MDU Resources MDU	NZ$7.04 B	-13.82%	🇺🇸 USA
PNM Resources PNM	NZ$6.70 B	-17.93%	🇺🇸 USA
PG&E Corporation PCG	NZ$67.73 B	728.56%	🇺🇸 USA
Idacorp IDA	NZ$13.80 B	68.92%	🇺🇸 USA
Black Hills BKH	NZ$10.38 B	27.09%	🇺🇸 USA
Avista AVA	NZ$5.29 B	-35.28%	🇺🇸 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 NorthWestern Energy (NWE)

Market cap: NZ$8.17 Billion