CME Group Inc.
BG ˙ BUL ˙ US12572Q1058
SecurityBG:MX4A / CME Group Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership5,470 shares
Latest Disclosed Value $ 1,493,766
Parallel Advisors, LLC ownership in MX4A / CME Group Inc.

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 5,470 shares of CME Group Inc. (BG:MX4A) valued at $1,493,766 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 5,336 shares of CME Group Inc.. This represents a change in shares of 2.51% during the quarter.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (MX4A) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

BG:MX4A / CME Group Inc. Historical Put/Call Ratio
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)
2026-02-11 2025-12-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 5,470 134 2.51 1,494 3.61 0.0273
2025-11-13 2025-09-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 5,336 97 1.85 1,442 -0.21 0.0264
2025-07-08 2025-06-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 5,239 303 6.14 1,444 10.31 0.0289
2025-04-08 2025-03-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,936 315 6.82 1,310 21.99 0.0295
2025-02-10 2024-12-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,621 786 20.50 1,073 26.83 0.0241
2024-11-13 2024-09-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 3,835 -131 -3.30 846 8.60 0.0199
2024-08-08 2024-06-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 3,966 -344 -7.98 780 -15.97 0.0200
2024-05-06 2024-03-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,310 67 1.58 928 3.81 0.0251
2024-02-12 2023-12-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,243 -44 -1.03 894 4.08 0.0265
2024-05-20 2023-09-30 13F/A-1 CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,287 285 7.12 858 15.79 0.0286
2023-11-14 2023-09-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,287 285 858 0.0286
2024-05-20 2023-06-30 13F/A-1 CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,002 -137 -3.31 742 -6.44 0.0239
2023-08-04 2023-06-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,002 -137 742 0.0239
2024-05-20 2023-03-31 13F/A-1 CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,139 1,559 60.43 793 82.91 0.0267
2023-04-25 2023-03-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 4,139 1,559 793 0.0267
2023-02-06 2022-12-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,580 150 6.17 434 0.70 0.0188
2022-11-10 2022-09-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,430 -422 -14.80 430 -26.37 0.0198
2022-08-01 2022-06-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,852 -309 -9.78 584 -23.56 0.0268
2022-04-28 2022-03-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 3,161 273 9.45 764 15.76 0.0303
2022-01-20 2021-12-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,888 444 18.17 660 39.53 0.0245
2021-11-02 2021-09-30 13F/A-1 CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,444 141 6.12 473 -3.47 0.0191
2021-08-06 2021-06-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,303 360 18.53 490 23.43 0.0208
2021-04-23 2021-03-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 1,943 155 8.67 397 22.15 0.0187
2021-02-02 2020-12-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 1,788 -348 -16.29 325 -8.96 0.0176
2020-10-27 2020-09-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,136 -956 -30.92 357 -28.88 0.0221
2020-07-16 2020-06-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 3,092 40 1.31 502 -4.74 0.0328
2020-04-27 2020-03-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 3,052 -332 -9.81 527 -22.39 0.0427
2020-01-30 2019-12-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 3,384 40 1.20 679 -3.96 0.0509
2019-11-01 2019-09-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 3,344 532 18.92 707 29.49 0.0605
2019-08-05 2019-06-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,812 -57 -1.99 546 15.68 0.0533
2019-05-01 2019-03-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,869 323 12.69 472 -1.26 0.0530
2019-02-05 2018-12-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,546 90 3.66 478 14.35 0.0666
2018-11-01 2018-09-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 2,456 677 38.06 418 43.64 0.0519
2018-07-30 2018-06-30 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 1,779 27 1.54 291 2.83 0.0416
2018-05-08 2018-03-31 13F CHICAGO MERCANTILE HLDGS Stock 12572Q105 1,752 -110 -5.91 283 4.04 0.0442
2018-02-13 2017-12-31 13F CME GROUP INC COM CL A Stock 12572Q105 1,862 682 57.80 272 64.85 0.0445
2017-11-15 2017-09-30 13F/A-1 CME GROUP INC COM CL A Stock 12572Q105 1,180 -36 -2.96 165 10.74 0.0284
2017-08-07 2017-06-30 13F CME GROUP INC COM Stock 12572Q105 1,216 132 12.18 149 16.41 0.0281
2017-05-12 2017-03-31 13F/A-1 CME GROUP INC COM Stock 12572Q105 1,084 43 4.13 128 6.67 0.0254
2017-05-12 2017-03-31 13F CME GROUP INC COM Stock 12572Q105 1,084 128
2017-02-14 2016-12-31 13F CME GROUP INC COM Stock 12572Q105 1,041 1,041 120 0.0282
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-01-19 2021-12-31 13F CHICAGO MERCANTILE HLDGS Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F CHICAGO MERCANTILE HLDGS Stock Call 2,303 490 n/a n/a n/a
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.