Market Cap Chart

View Market Cap for POR.
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Sep '18
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May '19
 
285.00
270.00
255.00
240.00
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Historical Market Cap Data

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Date Value
August 24, 2026 5.755B
August 21, 2026 5.742B
August 20, 2026 5.809B
August 19, 2026 5.805B
August 18, 2026 5.853B
August 17, 2026 5.890B
August 14, 2026 5.877B
August 13, 2026 5.827B
August 12, 2026 5.650B
August 11, 2026 5.603B
August 10, 2026 5.570B
August 07, 2026 5.679B
August 06, 2026 5.620B
August 05, 2026 5.702B
August 04, 2026 5.795B
August 03, 2026 5.807B
July 31, 2026 5.712B
July 30, 2026 5.800B
July 29, 2026 5.824B
July 28, 2026 5.922B
July 27, 2026 5.929B
July 24, 2026 6.024B
July 23, 2026 6.063B
July 22, 2026 6.124B
July 21, 2026 6.047B
Date Value
July 20, 2026 6.077B
July 17, 2026 6.068B
July 16, 2026 6.113B
July 15, 2026 6.036B
July 14, 2026 6.143B
July 13, 2026 6.139B
July 10, 2026 6.108B
July 09, 2026 6.040B
July 08, 2026 6.046B
July 07, 2026 6.085B
July 06, 2026 6.018B
July 02, 2026 6.101B
July 01, 2026 5.955B
June 30, 2026 5.998B
June 29, 2026 6.041B
June 26, 2026 6.079B
June 25, 2026 5.972B
June 24, 2026 6.027B
June 23, 2026 5.903B
June 22, 2026 5.808B
June 18, 2026 5.807B
June 17, 2026 5.763B
June 16, 2026 5.878B
June 15, 2026 5.840B
June 12, 2026 5.870B

Market Capitalization Definition

Market Capitalization measures the total value of a company based on their stock price multiplied by the shares outstanding. This metric is important because it gives you an idea of the size of a company, and how the size has changed over time. When studying companies from a relative basis, it would make sense to compare companies that have a similar market capitalization because factors like market share, economies of scale, and business models would also be similar.

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Market Cap Range, Past 5 Years

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Median

Market Cap Benchmarks

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Edison International 28.46B
OGE Energy Corp. 9.494B
FirstEnergy Corp. 26.95B
Eversource Energy 26.83B
Otter Tail Corp. 3.865B

Market Cap Related Metrics