CME Group Inc.
BG ˙ BUL ˙ US12572Q1058
SecurityBG:MX4A / CME Group Inc.
InstitutionGreat Lakes Advisors, Llc
Latest Disclosed Ownership1,835 shares
Latest Disclosed Value $ 542,017
Great Lakes Advisors, Llc reports 1.18% decrease in ownership of MX4A / CME Group Inc.

On May 11, 2026 - Great Lakes Advisors, Llc filed a 13F-HR form disclosing ownership of 1,835 shares of CME Group Inc. (BG:MX4A) valued at $542,017 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,857 shares of CME Group Inc.. This represents a change in shares of -1.18% 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)
2026-05-11 2026-03-31 13F CME Group Inc Cl A COM 12572Q105 1,835 -22 -1.18 542 6.90 0.0013
2026-02-12 2025-12-31 13F CME Group Inc Cl A COM 12572Q105 1,857 243 15.06 507 16.28 0.0041
2025-11-03 2025-09-30 13F CME Group Inc Cl A COM 12572Q105 1,614 -96 -5.61 436 -7.43 0.0036
2025-08-11 2025-06-30 13F CME Group Inc Cl A COM 12572Q105 1,710 49 2.95 471 7.05 0.0039
2025-05-16 2025-03-31 13F CME Group Inc Cl A COM 12572Q105 1,661 37 2.28 441 16.71 0.0039
2025-02-10 2024-12-31 13F CME Group Inc Cl A COM 12572Q105 1,624 75 4.84 377 10.56 0.0032
2024-11-04 2024-09-30 13F CME Group Inc Cl A COM 12572Q105 1,549 -898 -36.70 342 -29.11 0.0029
2024-08-06 2024-06-30 13F CME Group Inc Cl A COM 12572Q105 2,447 -8,459 -77.56 481 -79.51 0.0043
2024-05-08 2024-03-31 13F CME Group Inc Cl A COM 12572Q105 10,906 -6,600 -37.70 2,348 -36.33 0.0199
2024-02-08 2023-12-31 13F CME Group Inc Cl A COM 12572Q105 17,506 2,739 18.55 3,687 24.70 0.0351
2023-11-07 2023-09-30 13F CME Group Inc Cl A COM 12572Q105 14,767 4,027 37.50 2,957 48.62 0.0269
2023-08-10 2023-06-30 13F CME Group Inc Cl A COM 12572Q105 10,740 -2 -0.02 1,990 -3.31 0.0199
2023-05-10 2023-03-31 13F CME Group Inc Cl A COM 12572Q105 10,742 8 0.07 2,057 13.96 0.0187
2023-02-09 2022-12-31 13F CME Group Inc Cl A COM 12572Q105 10,734 128 1.21 1,805 -3.94 0.1034
2022-11-09 2022-09-30 13F CME Group Inc Cl A COM 12572Q105 10,606 2 0.02 1,879 -13.45 0.0410
2022-08-09 2022-06-30 13F CME Group Inc Cl A COM 12572Q105 10,604 497 4.92 2,171 -9.69 0.0429
2022-05-06 2022-03-31 13F CME Group Inc Cl A COM 12572Q105 10,107 -4 -0.04 2,404 4.07 0.0307
2022-02-09 2021-12-31 13F CME Group Inc Cl A COM 12572Q105 10,111 -199 -1.93 2,310 15.85 0.0352
2021-11-09 2021-09-30 13F CME Group Inc Cl A COM 12572Q105 10,310 -198 -1.88 1,994 -10.78 0.0311
2021-08-11 2021-06-30 13F CME Group Inc Cl A COM 12572Q105 10,508 -325 -3.00 2,235 1.04 0.0337
2021-05-03 2021-03-31 13F CME Group Inc Cl A COM 12572Q105 10,833 -2,471 -18.57 2,212 -8.67 0.0357
2021-02-09 2020-12-31 13F CME Group Inc Cl A COM 12572Q105 13,304 -24,476 -64.79 2,422 -61.68 0.0438
2020-11-04 2020-09-30 13F CME Group Inc Cl A COM 12572Q105 37,780 20,592 119.80 6,321 126.23 0.1337
2020-08-07 2020-06-30 13F CME Group Inc Cl A COM 12572Q105 17,188 317 1.88 2,794 -4.22 0.0678
2020-05-08 2020-03-31 13F CME Group Inc Cl A COM 12572Q105 16,871 620 3.82 2,917 -10.58 0.0852
2020-02-07 2019-12-31 13F CME Group Inc Cl A COM 12572Q105 16,251 -2,023 -11.07 3,262 -15.54 0.0700
2019-11-06 2019-09-30 13F CME Group Inc Cl A COM 12572Q105 18,274 -891 -4.65 3,862 3.79 0.0848
2019-08-05 2019-06-30 13F CME Group Inc Cl A COM 12572Q105 19,165 1,462 8.26 3,721 27.69 0.0811
2019-05-07 2019-03-31 13F CME Group Inc Cl A COM 12572Q105 17,703 -27,066 -60.46 2,914 -65.40 0.0648
2019-02-13 2018-12-31 13F CME Group Inc Cl A COM 12572Q105 44,769 11,846 35.98 8,422 50.29 0.1995
2018-11-30 2018-09-30 13F/A-2 CME Group Inc Cl A COM 12572Q105 32,923 -6,846 -17.21 5,604 -14.04 0.1237
2018-11-15 2018-09-30 13F/A-1 CME GROUP COM 12572Q105 10,965 -21,958 1,866 0.3041
2018-11-14 2018-09-30 13F CME GROUP COM 12572Q105 39,769 0 6,519
2018-08-13 2018-06-30 13F CME GROUP COM 12572Q105 39,769 28,598 256.00 6,519 260.76 0.1528
2018-05-07 2018-03-31 13F CME GROUP CS 12572Q105 11,171 -9,501 -45.96 1,807 -40.15 0.0430
2018-02-07 2017-12-31 13F CME GROUP CS 12572Q105 20,672 -18 -0.09 3,019 7.55 0.0664
2017-11-13 2017-09-30 13F CME GROUP CS 12572Q105 20,690 -5,363 -20.58 2,807 -13.97 0.0660
2017-08-07 2017-06-30 13F CME GROUP CS 12572Q105 26,053 -22,770 -46.64 3,263 -43.74 0.0800
2017-05-09 2017-03-31 13F CME GROUP CS 12572Q105 48,823 -20,312 -29.38 5,800 -27.27 0.1492
2017-02-10 2016-12-31 13F CME GROUP CS 12572Q105 69,135 -29,902 -30.19 7,975 -22.95 0.2095
2016-11-07 2016-09-30 13F CME GROUP CS 12572Q105 99,037 1,108 1.13 10,351 8.52 0.2807
2016-08-12 2016-06-30 13F CME GROUP CS 12572Q105 97,929 63,014 180.48 9,538 184.38 0.2596
2016-05-11 2016-03-31 13F CME GROUP CS 12572Q105 34,915 23,346 201.80 3,354 220.04 0.0917
2016-02-12 2015-12-31 13F CME GROUP CS 12572Q105 11,569 -165 -1.41 1,048 -3.68 0.0314
2015-10-30 2015-09-30 13F CME GROUP CS 12572Q105 11,734 -32 -0.27 1,088 -0.64 0.0337
2015-08-12 2015-06-30 13F CME GROUP CS 12572Q105 11,766 -3,402 -22.43 1,095 -23.80 0.0333
2015-05-06 2015-03-31 13F CME GROUP CS 12572Q105 15,168 -5,237 -25.67 1,437 -20.56 0.0440
2015-02-11 2014-12-31 13F CME GROUP CS 12572Q105 20,405 2,025 11.02 1,809 23.06 0.0561
2014-11-20 2014-09-30 13F CME GROUP CS 12572Q105 18,380 -17,172 -48.30 1,470 -41.71 0.0493
2014-08-19 2014-06-30 13F CME GROUP CS 12572Q105 35,552 -4,700 -11.68 2,522 -15.34 0.1038
2014-05-22 2014-03-31 13F CME GROUP COMMON 12572Q105 40,252 -5,078 -11.20 2,979 -16.25 0.1295
2014-05-22 2013-12-31 13F/A-1 CME GROUP com 12572Q105 45,330 -4,101 -8.30 3,557 -2.60 0.1614
2014-02-24 2013-12-31 13F CME GROUP com 12572Q105 45,330 3,557
2013-11-27 2013-09-30 13F CME GROUP com 12572Q105 49,431 1,600 3.35 3,652 0.52 0.1641
2013-08-16 2013-06-30 13F CME GROUP com 12572Q105 47,831 47,831 3,633 0.1703
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.