AllianceBernstein L.P. owns 4.8% of Cboe (CBOE) — 5.06M shares disclosed

Rhea-AI Filing Summary

Cboe Global Markets Inc: Schedule 13G/A amendment discloses AllianceBernstein L.P. beneficial ownership of 5,061,323 common shares, representing 4.8% of the class as of 03/31/2026. The filing states AllianceBernstein holds 4,717,299 shares with sole voting power and 5,055,110 shares with sole dispositive power on behalf of discretionary client accounts.

Insights

Institutional Ownership Specialist

Large investment manager reports a sub-5% passive stake.

The filing shows AllianceBernstein L.P. reports beneficial ownership of 5,061,323 common shares, equal to 4.8% of the class as of 03/31/2026. The disclosure attributes holdings to discretionary client accounts.

Voting and dispositive power figures are provided: 4,717,299 sole voting power and 5,055,110 sole dispositive power. The filing is an amended Schedule 13G/A and is consistent with passive/investment-purpose reporting; cash-flow treatment and specific accounts are not detailed in the excerpt.

Compliance & SEC Filings Analyst

Amendment clarifies ownership and power metrics; no control claim.

The document identifies AllianceBernstein as a Delaware entity and includes a footnote about its relationship with Equitable Holdings, stating separate reporting by EQH per SEC guidance. The filing is signed and dated, indicating an amendment filed after the relevant ownership date.

Because the stake is under 5.0%, it is categorized as ‘‘Ownership of 5 Percent or Less of a Class’’ in the form; subsequent disclosures would appear if thresholds changed.

Key Figures

Beneficial ownership: 5,061,323 shares Percent of class: 4.8% Sole voting power: 4,717,299 shares +1 more

4 metrics

Beneficial ownership 5,061,323 shares as of 03/31/2026

Percent of class 4.8% percent of common stock

Sole voting power 4,717,299 shares sole power to vote

Sole dispositive power 5,055,110 shares sole power to dispose

Key Terms

Schedule 13G/A, Beneficial ownership, Sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 3; Schedule 13G/A form header"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficial ownership financial

"Amount beneficially owned: 5,061,323 shares acquired solely for investment purposes"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 5,055,110"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 01:22 PM Learn about SEC filing dates

FAQ

What stake does AllianceBernstein report in CBOE (CBOE)?

AllianceBernstein reports beneficial ownership of 5,061,323 shares, representing 4.8% of Cboe's common stock as of 03/31/2026. The holdings are held for discretionary client accounts per the filing.

How much voting power does AllianceBernstein have in CBOE?

The filing states AllianceBernstein has 4,717,299 shares with sole voting power and 0 shares with shared voting power. These figures are reported on the Schedule 13G/A amendment.

Does AllianceBernstein control Cboe or claim more-than-5% ownership?

No. The Schedule 13G/A classifies the position as "Ownership of 5 Percent or Less of a Class," reporting 4.8% ownership; the filing does not assert control or a greater-than-5% stake.

Are these shares held directly by AllianceBernstein or for clients?

The filing states the 5,061,323 shares are held "on behalf of client discretionary investment advisory accounts," indicating the position is managed for clients rather than held as proprietary inventory.

What relationship is disclosed between AllianceBernstein and Equitable Holdings?

The filing notes AllianceBernstein is a majority-owned subsidiary of Equitable Holdings and states that Equitable calculates and reports beneficial ownership separately per SEC guidance, while AllianceBernstein operates under independent management.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

Cboe Global Markets Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

12503M108

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 12503M108

1

Names of Reporting Persons

AllianceBernstein L.P.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 4,717,299.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 5,055,110.00
8	Shared Dispositive Power 6,213.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,061,323.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.8 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Cboe Global Markets Inc
(b)	Address of issuer's principal executive offices: 433 WEST VAN BUREN STREET, CHICAGO, IL 60607
Item 2.
(a)	Name of person filing: AllianceBernstein L.P. ("AllianceBernstein L.P.")
(b)	Address or principal business office or, if none, residence: 501 Commerce Street, Nashville, TN 37203 All media outlets, please contact Jennifer Will at AllianceBernstein (212-969-1157) with any questions. All other questions can be directed to Section13USFilings@alliancebernstein.com.
(c)	Citizenship: Delaware
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 12503M108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 5,061,323 shares acquired solely for investment purposes on behalf of client discretionary investment advisory accounts.* *AllianceBernstein L.P. is a majority owned subsidiary of Equitable Holdings, Inc. ("EQH"). AllianceBernstein operates under independent management and makes independent decisions from EQH and its respective subsidiaries, and EQH calculates and reports beneficial ownership separately from AllianceBernstein pursuant to guidance provided by the Securities and Exchange Commission in Release Number 34-39538 (January 12, 1998).
(b)	Percent of class: 4.8 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 4,717,299
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 5,055,110
	(iv) Shared power to dispose or to direct the disposition of: 6,213
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

AllianceBernstein L.P.

Signature:	Marcus Edwards
Name/Title:	AVP/ Senior Compliance Associate
Date:	05/15/2026