Market Cap Chart

View Market Cap for SIGI.
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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 5.519B
August 21, 2026 5.449B
August 20, 2026 5.409B
August 19, 2026 5.351B
August 18, 2026 5.439B
August 17, 2026 5.486B
August 14, 2026 5.622B
August 13, 2026 5.593B
August 12, 2026 5.590B
August 11, 2026 5.600B
August 10, 2026 5.655B
August 07, 2026 5.732B
August 06, 2026 5.765B
August 05, 2026 5.760B
August 04, 2026 5.756B
August 03, 2026 5.684B
July 31, 2026 5.647B
July 30, 2026 5.639B
July 29, 2026 5.759B
July 28, 2026 5.623B
July 27, 2026 5.527B
July 24, 2026 5.738B
July 23, 2026 5.825B
July 22, 2026 5.723B
July 21, 2026 5.883B
Date Value
July 20, 2026 5.763B
July 17, 2026 5.746B
July 16, 2026 5.673B
July 15, 2026 5.579B
July 14, 2026 5.739B
July 13, 2026 5.820B
July 10, 2026 5.714B
July 09, 2026 5.691B
July 08, 2026 5.778B
July 07, 2026 5.837B
July 06, 2026 5.854B
July 02, 2026 5.966B
July 01, 2026 5.839B
June 30, 2026 5.779B
June 29, 2026 5.853B
June 26, 2026 5.765B
June 25, 2026 5.658B
June 24, 2026 5.711B
June 23, 2026 5.651B
June 22, 2026 5.534B
June 18, 2026 5.526B
June 17, 2026 5.545B
June 16, 2026 5.541B
June 15, 2026 5.524B
June 12, 2026 5.532B

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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