Cboe Global Markets, Inc.

The full register, from 13F filings

The Register tab above is hand research: a dozen holders, each traced to the filing it came from. This asks the same question of the whole market for the quarter ended 31-mar-2026, where 970 managers reported a position. Broad where the research is deep, and shallow in the ways a 13F always is.

Built from 13F filings, which report US listed, long, US custodied positions only. A register from this source is a floor rather than a level: a holder's true position can be far larger, as BlackRock's ASML stake shows at 1.28m shares in a 13F against 26.3m in its 13G/A. Holdings held through derivatives, outside US custody, or below a manager's reporting obligation do not appear. Where a holder is marked as a family, its total sums several separate filing entities and describes something no single filing describes; the constituent entities and their share counts are listed so the total can be checked. That roll-up can legitimately exceed the family's own Schedule 13G, because a 13G is filed by one legal entity: Vanguard reports Alphabet through ten advisory entities, and The Vanguard Group Inc itself reported zero after its January 2026 disaggregation.

What a reader needs to know to read these numbers

• Cboe has a single class of common stock (no dual-class structure); shares_outstanding is 104,431,019 as of 24 Jul 2026 per the Q2 2026 10-Q cover page.
• Cboe is self-listed: its own common stock trades on Cboe BZX (ticker CBOE), one of its own exchanges.
• Holdings side: every equity investment disclosed in the 30 Jun 2026 10-Q (Note 4, Investments) is individually named with its own carrying value, so this is NOT a combined-balance situation for the six named lines (7Ridge Fund, CSD BR, Eris Innovations, Talos Global, Vest Group Inc., OCC). The one true combined balance is the residual 'Other equity investments' line ($1.6 million at 30 Jun 2026), which the 10-Q's executive-compensation footnote (e) confirms covers at least Abaxx Singapore Pte. Ltd. and American Financial Exchange, LLC (both current minority investments); those two are included as null-valued holdings rows per the combined-balance rule, not sized.
• Candidates from the research brief checked and NOT found in either the FY2025 10-K or the Q2 2026 10-Q: Cboe Vest (as a named minority stake; Cboe's wholly-owned, consolidated options-based fund business traces to the 2022 Vest Financial Group acquisition but is not disclosed as an equity-method or minority investment and is excluded as a wholly-owned operating subsidiary), Cboe Digital / Cboe Clear Digital (wholly-owned, consolidated subsidiaries, excluded), Japannext Co., Ltd. (Cboe's minority stake was SOLD 12 Dec 2025 for its original $36.5 million investment amount, an exit with no current row), Globacap Technology Limited and StratiFi Technologies Inc. (both had 2024 impairments per the FY2025 10-K tax footnote but current holding status is not confirmed in the sections reviewed, so no row was written), Coinbase Derivatives / FairX, tZERO, Curvature Securities (no mention found in either filing).
• Cboe also holds PYTH tokens (Pyth Network), referenced repeatedly as intangible digital assets, not an equity stake in a company; excluded from holdings as out of scope for this database.
• Cross-check against the database: neither cme-group.json nor sp-global.json mentions Cboe or any of Cboe's named investees (7Ridge, CSD BR, Eris Innovations, Talos Global, Vest Group Inc., OCC), so no reconciliation was available or needed for this company.
• Register: AllianceBernstein's fresh Q2 2026 13F-HR (4,067,672 shares) is materially lower than the 6,777,633 shares / 6.5% figure in Cboe's own DEF 14A, which is sourced to an older Schedule 13G; per project guidance the fresh 13F is used and the stale proxy figure is recorded for reconciliation only.
• Register: Capital Group was swept across its three most commonly filing 13F registrants (Capital World Investors CIK 0001422849, Capital International Investors CIK 0001562230, Capital Research Global Investors CIK 0001422848) for the quarter ended 30 Jun 2026; none of the three holds any CBOE position (checked by both 'CBOE GLOBAL' and bare 'CBOE' fragments against each information table). This is recorded as a checked-and-zero finding, not a row. A wider sweep for additional Capital Group registrants beyond these three was not performed.
• Register self-gate, computed from this final file exactly as the chart computes it: 12 rows (Vanguard and T. Rowe Price each summed as one family/entity-pair row; no row carries rolls_up_into and no row is_aggregate, so every row counts at full value). Total shares = 13,176,198 + 10,198,207 + 5,046,590 + 4,307,122 + 4,067,672 + 2,843,052 + 3,096,888 + 2,135,634 + 1,306,215 + 1,562,818 + 1,328,924 + 263,809 = 49,333,129 shares, which is 49,333,129 / 104,431,019 = 47.24% of shares outstanding.