CME Group Inc.
BG ˙ BUL ˙ US12572Q1058
SecurityBG:MX4A / CME Group Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership233,197 shares
Latest Disclosed Value $ 68,875
Natixis Advisors, L.p. reports 19.87% increase in ownership of MX4A / CME Group Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 233,197 shares of CME Group Inc. (BG:MX4A) valued at $68,875 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 194,538 shares of CME Group Inc.. This represents a change in shares of 19.87% 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)
2026-05-13 2026-03-31 13F CME GROUP COM 12572Q105 233,197 38,659 19.87 69 28.30 0.0958
2026-02-10 2025-12-31 13F CME GROUP COM 12572Q105 194,538 11,067 6.03 53 8.16 0.0753
2025-11-13 2025-09-30 13F CME GROUP INC COM 12572Q105 183,471 5,706 3.21 50 2.08 0.0723
2025-08-13 2025-06-30 13F CME GROUP COM 12572Q105 177,765 15,621 9.63 49 11.63 0.0777
2025-05-08 2025-03-31 13F CME GROUP COM 12572Q105 162,144 -20,843 -11.39 43 2.38 0.0795
2025-02-10 2024-12-31 13F CME GROUP COM 12572Q105 182,987 17,575 10.62 42 16.67 0.0794
2024-11-06 2024-09-30 13F CME GROUP COM 12572Q105 165,412 -84,429 -33.79 36 -26.53 0.0712
2024-08-01 2024-06-30 13F CME GROUP COM 12572Q105 249,841 -69,616 -21.79 49 -27.94 0.1068
2024-04-25 2024-03-31 13F CME GROUP COM 12572Q105 319,457 -6,319 -1.94 69 0.00 0.1581
2024-02-06 2023-12-31 13F CME GROUP COM 12572Q105 325,776 5,496 1.72 69 6.25 0.1806
2023-11-13 2023-09-30 13F CME GROUP COM 12572Q105 320,280 9,484 3.05 64 12.28 0.1961
2023-08-15 2023-06-30 13F CME GROUP COM 12572Q105 310,796 5,621 1.84 58 -1.72 0.1778
2023-05-11 2023-03-31 13F CME GROUP COM 12572Q105 305,175 52,244 20.66 58 38.10 0.2011
2023-01-27 2022-12-31 13F CME GROUP COM 12572Q105 252,931 24,332 10.64 43 -99.90 0.1608
2022-11-14 2022-09-30 13F CME GROUP COM 12572Q105 228,599 -8,032 -3.39 40,492 -16.40 0.1713
2022-08-12 2022-06-30 13F CME GROUP COM 12572Q105 236,631 -46,878 -16.53 48,438 -28.17 0.2130
2022-05-12 2022-03-31 13F CME GROUP COM 12572Q105 283,509 33,218 13.27 67,435 17.93 0.2572
2022-02-08 2021-12-31 13F CME GROUP COM 12572Q105 250,291 96,984 63.26 57,181 92.87 0.2184
2021-11-15 2021-09-30 13F CME GROUP COM 12572Q105 153,307 -72,510 -32.11 29,647 -38.27 0.1219
2021-08-12 2021-06-30 13F CME GROUP COM 12572Q105 225,817 23,813 11.79 48,027 16.41 0.2242
2021-05-05 2021-03-31 13F CME GROUP COM 12572Q105 202,004 133,622 195.41 41,255 231.39 0.2153
2021-02-12 2020-12-31 13F CME GROUP COM 12572Q105 68,382 648 0.96 12,449 9.85 0.0717
2020-11-12 2020-09-30 13F CME GROUP COM 12572Q105 67,734 -123,239 -64.53 11,333 -63.49 0.0713
2020-08-11 2020-06-30 13F CME GROUP COM 12572Q105 190,973 55,863 41.35 31,041 32.87 0.2060
2020-04-27 2020-03-31 13F CME GROUP COM 12572Q105 135,110 26,867 24.82 23,362 7.53 0.1904
2020-02-10 2019-12-31 13F CME GROUP COM 12572Q105 108,243 1,019 0.95 21,727 -4.12 0.1532
2019-11-12 2019-09-30 13F CME GROUP COM 12572Q105 107,224 7,622 7.65 22,661 17.21 0.1799
2019-08-12 2019-06-30 13F CME GROUP COM 12572Q105 99,602 2,180 2.24 19,334 20.58 0.1579
2019-05-15 2019-03-31 13F/A-1 CME GROUP COM 12572Q105 97,422 -11,205 -10.32 16,034 -21.54 0.1404
2019-05-15 2019-03-31 13F CME GROUP COM 12572Q105 97,422 -11,205 16,034
2019-02-13 2018-12-31 13F/A-1 CME GROUP COM 12572Q105 108,627 8,460 8.45 20,435 19.86 0.2018
2019-02-13 2018-12-31 13F CME GROUP COM 12572Q105 108,627 8,460 20,435
2018-11-13 2018-09-30 13F CME GROUP COM 12572Q105 100,167 8,659 9.46 17,049 13.66 0.1501
2018-08-14 2018-06-30 13F/A-1 CME GROUP COM 12572Q105 91,508 10,044 12.33 15,000 13.84 0.1433
2018-08-14 2018-06-30 13F CME GROUP COM 12572Q105 91,508 15,000
2018-05-10 2018-03-31 13F CME GROUP COM 12572Q105 81,464 -423 -0.52 13,176 10.17 0.1300
2018-02-14 2017-12-31 13F CME GROUP COM 12572Q105 81,887 1,620 2.02 11,960 9.83 0.1218
2017-11-14 2017-09-30 13F CME GROUP COM 12572Q105 80,267 -308 -0.38 10,890 7.92 0.1150
2017-07-27 2017-06-30 13F CME GROUP COM 12572Q105 80,575 -12,246 -13.19 10,091 -8.49 0.1092
2017-05-12 2017-03-31 13F CME GROUP COM 12572Q105 92,821 -7,084 -7.09 11,027 -4.31 0.1222
2017-02-07 2016-12-31 13F CME GROUP COM 12572Q105 99,905 2,968 3.06 11,524 13.74 0.1386
2016-11-04 2016-09-30 13F CME GROUP COM 12572Q105 96,937 56,169 137.78 10,132 155.15 0.1312
2016-08-01 2016-06-30 13F CME GROUP COM 12572Q105 40,768 2,865 7.56 3,971 9.06 0.0549
2016-05-06 2016-03-31 13F CME GROUP COM 12572Q105 37,903 3,094 8.89 3,641 15.44 0.0545
2016-02-12 2015-12-31 13F CME GROUP COM 12572Q105 34,809 -127 -0.36 3,154 -2.65 0.0517
2015-11-12 2015-09-30 13F CME GROUP COM 12572Q105 34,936 -17,064 -32.82 3,240 -33.04 0.0562
2015-08-14 2015-06-30 13F CME GROUP COM 12572Q105 52,000 -607 -1.15 4,839 -2.87 0.0822
2015-05-15 2015-03-31 13F CME GROUP COM 12572Q105 52,607 -1,441 -2.67 4,982 3.96 0.0875
2015-02-05 2014-12-31 13F CME GROUP COM 12572Q105 54,048 3,427 6.77 4,792 18.38 0.0897
2014-11-03 2014-09-30 13F CME GROUP COM 12572Q105 50,621 -10,587 -17.30 4,048 -6.79 0.0812
2014-08-13 2014-06-30 13F CME GROUP COM 12572Q105 61,208 12,714 26.22 4,343 20.97 0.0622
2014-05-13 2014-03-31 13F CME GROUP COM 12572Q105 48,494 10,164 26.52 3,590 19.39 0.0553
2014-02-12 2013-12-31 13F CME GROUP COM 12572Q105 38,330 2,462 6.86 3,007 13.47 0.0492
2013-10-30 2013-09-30 13F CME GROUP COM 12572Q105 35,868 -22,911 -38.98 2,650 -40.64 0.0488
2013-07-19 2013-06-30 13F CME GROUP COM 12572Q105 58,779 58,779 4,464 0.0889
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.