Market Cap Chart

View Market Cap for KMI.
Upgrade now.
Sep '18
Jan '19
May '19
 
285.00
270.00
255.00
240.00
View Market Cap Chart
Start Trial

Historical Market Cap Data

View and export this data back to 2011. Start Trial.
Date Value
August 21, 2026 68.92B
August 20, 2026 70.33B
August 19, 2026 71.37B
August 18, 2026 73.13B
August 17, 2026 71.93B
August 14, 2026 73.02B
August 13, 2026 71.37B
August 12, 2026 70.59B
August 11, 2026 70.04B
August 10, 2026 69.84B
August 07, 2026 68.64B
August 06, 2026 69.59B
August 05, 2026 69.24B
August 04, 2026 69.81B
August 03, 2026 69.86B
July 31, 2026 71.59B
July 30, 2026 70.44B
July 29, 2026 70.86B
July 28, 2026 70.33B
July 27, 2026 70.64B
July 24, 2026 73.11B
July 23, 2026 72.91B
July 22, 2026 72.28B
July 21, 2026 72.04B
July 20, 2026 72.48B
Date Value
July 17, 2026 71.86B
July 16, 2026 72.40B
July 15, 2026 71.64B
July 14, 2026 72.40B
July 13, 2026 71.73B
July 10, 2026 71.46B
July 09, 2026 72.08B
July 08, 2026 72.26B
July 07, 2026 72.28B
July 06, 2026 70.50B
July 02, 2026 71.33B
July 01, 2026 70.57B
June 30, 2026 71.13B
June 29, 2026 71.79B
June 26, 2026 73.84B
June 25, 2026 73.44B
June 24, 2026 72.51B
June 23, 2026 72.40B
June 22, 2026 71.75B
June 18, 2026 70.28B
June 17, 2026 69.70B
June 16, 2026 69.95B
June 15, 2026 69.99B
June 12, 2026 71.06B
June 11, 2026 69.77B

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.

Read full definition.

Market Cap Range, Past 5 Years

View Market Cap Range, Past 5 Years
Start Trial
--
Minimum
--
Maximum
--
Average
--
Median

Market Cap Benchmarks

Market Cap Related Metrics