CME Group Inc. (CME): Weighted Average Diluted Shares

Annual figures by period end, from SEC filings.

Stock splits: 5-for-1, first reflected in a filing dated 2012-08-08. Figures are as filed: per-share figures and share counts last reported before a split are on the old share basis, so changes and growth rates across a split are not shown. Splits are read from the filings' own restatements, so a share conversion in a merger or reorganization shows up the same way.

360.31M

Year ended 2025-12-31

+0.1%

3-year compound annual growth

+0.1%

5-year compound annual growth

+0.6%

10-year compound annual growth

2007-12-31 Weighted Average Diluted Shares (shares) 2025-12-31

Paler bars were last filed before a stock split, on the old share basis.

Period ended	Weighted Average Diluted Shares	Change YoY	Source filing
2025-12-31	360.31M	+0.1%	2026-02-26, From 2025-01-01
2024-12-31	359.94M	+0.1%	2026-02-26, From 2024-01-01
2023-12-31	359.50M	+0.1%	2026-02-26, From 2023-01-01
2022-12-31	359.18M	+0.1%	2025-02-27, From 2022-01-01
2021-12-31	358.93M	+0.1%	2024-02-28, From 2021-01-01
2020-12-31	358.52M	+0.1%	2023-02-27, From 2020-01-01
2019-12-31	358.24M	+4.2%	2022-02-25, From 2019-01-01
2018-12-31	343.74M	+1.0%	2021-02-26, From 2018-01-01
2017-12-31	340.23M	+0.4%	2020-02-28, From 2017-01-01
2016-12-31	338.97M	+0.3%	2019-02-28, From 2016-01-01
2015-12-31	337.89M	+0.5%	2018-03-01, From 2015-01-01
2014-12-31	336.06M	+0.5%	2017-02-27, From 2014-01-01
2013-12-31	334.40M	+0.6%	2016-02-26, From 2013-01-01
2012-12-31	332.32M	-0.4%	2015-02-26, From 2012-01-01
2011-12-31	333.81M	+0.4%	2014-03-03, From 2011-01-01
2010-12-31	332.48M	n/c	2013-03-01, From 2010-01-01
2009-12-31	66.55M	+12.9%	2012-02-28, From 2009-01-01
2008-12-31	58.97M	+33.7%	2011-02-28, From 2008-01-01
2007-12-31	44.11M	n/a	2010-02-26, From 2007-01-01