CME Group Inc.
BG ˙ BUL ˙ US12572Q1058
SecurityBG:MX4A / CME Group Inc.
InstitutionNational Pension Service
Latest Disclosed Ownership737,902 shares
Latest Disclosed Value $ 217,939,356
National Pension Service reports 9.63% increase in ownership of MX4A / CME Group Inc.

On May 12, 2026 - National Pension Service filed a 13F-HR form disclosing ownership of 737,902 shares of CME Group Inc. (BG:MX4A) valued at $217,939,356 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 673,090 shares of CME Group Inc.. This represents a change in shares of 9.63% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F CME GROUP COM 12572Q105 737,902 64,812 9.63 217,939 18.57 0.1655
2026-02-10 2025-12-31 13F CME GROUP CME GROUP INC 12572Q105 673,090 -253,924 -27.39 183,807 -26.61 0.1361
2025-11-04 2025-09-30 13F CME GROUP COM 12572Q105 927,014 9,748 1.06 250,470 -0.93 0.1945
2025-08-08 2025-06-30 13F CME GROUP COM 12572Q105 917,266 86,733 10.44 252,817 14.74 0.2183
2025-05-13 2025-03-31 13F CME GROUP COM 12572Q105 830,533 44,487 5.66 220,332 20.70 0.2118
2025-02-05 2024-12-31 13F CME GROUP COM 12572Q105 786,046 964 0.12 182,543 5.38 0.1727
2024-10-30 2024-09-30 13F CMEGROUPINC COM 12572Q105 785,082 64,499 8.95 173,228 22.28 0.1671
2024-08-13 2024-06-30 13F CME GROUP COM 12572Q105 720,583 20,276 2.90 141,667 -6.04 0.1628
2024-05-14 2024-03-31 13F CME GROUP COM 12572Q105 700,307 18,917 2.78 150,769 5.07 0.1809
2024-02-07 2023-12-31 13F CME GROUP COM 12572Q105 681,390 17,744 2.67 143,501 8.21 0.1998
2023-11-15 2023-09-30 13F CME GROUP COM 12572Q105 663,646 9,806 1.50 132,616 10.62 0.2122
2023-08-16 2023-06-30 13F CME GROUP COM 12572Q105 653,840 140,637 27.40 119,888 23.65 0.1934
2023-05-12 2023-03-31 13F CME GROUP COM 12572Q105 513,203 3,377 0.66 96,959 13.10 0.1765
2023-02-24 2022-12-31 13F/A-1 CME GROUP COM 12572Q105 509,826 6,933 1.38 85,732 -4.58 0.1686
2023-02-21 2022-12-31 13F CME GROUP COM 12572Q105 509,826 6,933 86 0.1686
2023-02-24 2022-09-30 13F/A-1 CME GROUP COM 12572Q105 502,893 19,684 4.07 89,852 -9.16 0.1875
2022-11-18 2022-09-30 13F CME GROUP COM 12572Q105 502,893 19,684 89,852 0.1875
2022-08-17 2022-06-30 13F CME GROUP COM 12572Q105 483,209 29,414 6.48 98,913 -8.36 0.2039
2022-05-13 2022-03-31 13F CME GROUP COM 12572Q105 453,795 6,257 1.40 107,940 5.57 0.1970
2022-02-15 2021-12-31 13F CME GROUP COM 12572Q105 447,538 -3,992 -0.88 102,245 17.10 0.1784
2021-11-18 2021-09-30 13F CME GROUP COM 12572Q105 451,530 -4,454 -0.98 87,317 -9.96 0.1663
2021-08-17 2021-06-30 13F CME GROUP COM 12572Q105 455,984 2,825 0.62 96,979 4.79 0.1842
2021-05-14 2021-03-31 13F CME GROUP COM 12572Q105 453,159 -11,985 -2.58 92,549 9.29 0.1936
2021-02-19 2020-12-31 13F CME GROUP COM 12572Q105 465,144 13,760 3.05 84,679 11.05 0.1931
2020-11-13 2020-09-30 13F CME GROUP COM 12572Q105 451,384 0 0.00 76,252 3.93 0.2003
2020-08-11 2020-06-30 13F CME GROUP COM 12572Q105 451,384 22,143 5.16 73,368 -1.15 0.2096
2020-05-27 2020-03-31 13F CME GROUP COM 12572Q105 429,241 3,716 0.87 74,220 -13.10 0.2512
2020-02-21 2019-12-31 13F CME GROUP COM 12572Q105 425,525 36,841 9.48 85,411 3.98 0.2343
2019-11-15 2019-09-30 13F CME GROUP COM 12572Q105 388,684 18,760 5.07 82,144 14.40 0.2599
2019-08-14 2019-06-30 13F CME GROUP COM 12572Q105 369,924 21,828 6.27 71,806 25.34 0.2400
2019-05-15 2019-03-31 13F CME GROUP COM CL A 12572Q105 348,096 13,193 3.94 57,290 -3.57 0.2204
2019-02-15 2018-12-31 13F CME GROUP COM CL A 12572Q105 334,903 17,827 5.62 59,412 10.08 0.2451
2018-11-15 2018-09-30 13F CME GROUP COM CL A 12572Q105 317,076 1,771 0.56 53,970 4.46 0.2197
2018-08-14 2018-06-30 13F CME GROUP COM CL A 12572Q105 315,305 18,977 6.40 51,666 7.80 0.2338
2018-04-13 2018-03-31 13F CME GROUP COM CL A 12572Q105 296,328 2,582 0.88 47,928 11.72 0.2376
2018-01-17 2017-12-31 13F CME GROUP COM CL A 12572Q105 293,746 2,964 1.02 42,902 8.60 0.2142
2017-10-16 2017-09-30 13F CME GROUP COM CL A 12572Q105 290,782 11,540 4.13 39,506 13.15 0.2174
2017-07-13 2017-06-30 13F CME GROUP COM 12572Q105 279,242 24,999 9.83 34,916 15.55 0.2080
2017-04-11 2017-03-31 13F CME GROUP COM 12572Q105 254,243 15,099 6.31 30,217 9.54 0.2023
2017-01-18 2016-12-31 13F CME GROUP COM 12572Q105 239,144 14,576 6.49 27,585 17.52 0.1887
2016-10-14 2016-09-30 13F CME GROUP COM 12572Q105 224,568 18,140 8.79 23,472 16.74 0.1881
2016-08-11 2016-06-30 13F CME GROUP COM 12572Q105 206,428 8,589 4.34 20,106 5.81 0.1785
2016-05-16 2016-03-31 13F CME GROUP COM 12572Q105 197,839 7,533 3.96 19,002 10.21 0.1903
2016-02-12 2015-12-31 13F CME GROUP COM 12572Q105 190,306 10,975 6.12 17,242 3.67 0.1811
2015-10-15 2015-09-30 13F CME GROUP COM 12572Q105 179,331 17,482 10.80 16,631 10.42 0.2103
2015-07-15 2015-06-30 13F CME GROUP COM 12572Q105 161,849 20,848 14.79 15,061 12.78 0.1954
2015-04-15 2015-03-31 13F CME GROUP COM 12572Q105 141,001 29,894 26.91 13,354 35.57 0.1930
2015-01-13 2014-12-31 13F CME GROUP COM 12572Q105 111,107 -11,170 -9.13 9,850 0.75 0.1662
2014-11-07 2014-09-30 13F CME GROUP COM 12572Q105 122,277 122,277 9,777 0.1552
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.