Cboe Global Markets, Inc. (CBOE)

Highly Crowded

Held by 937 of 5,944 reporting institutions (99th percentile) — extremely crowded.

Data as of Q1 2026

Institutional Ownership

86.29%

QoQ Change

N/A

Total Value

$24.0T

Shares Outstanding

104.7M

Crowding AnalysisHighly Crowded

Holders937of 5,944

Avg: 68

Uncrowded99th percentileCrowded

Institutional Activity

Buy/Sell Ratio1.29x

97th percentile

523 buying404 selling

+138

New

-92

Closed

+896K

Net shares

Holding Period Distribution

estimate

Median: 4 QAvg: 4.5 QHolders: 937

Ownership Concentration

Top 5: 36.1%Top 10: 53.5%

BlackRock,11.6%

VANGUARD CAPITAL MANAGEMENT7.5%

VANGUARD PORTFOLIO MANAGEMENT5.8%

ALLIANCEBERNSTEIN L.P.5.6%

STATE STREET5.5%

Others (932)63.9%

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Conviction-Weighted Ownership

Median weight: 0.06%Avg weight: 0.13%Max: 0.42%High conviction (>1%): 0

BlackRock,

VANGUARD CAPITAL MANAGEMENT

VANGUARD PORTFOLIO MANAGEMENT

ALLIANCEBERNSTEIN L.P.

STATE STREET

FMR

MORGAN STANLEY

GEODE CAPITAL MANAGEMENT,

Invesco

T. Rowe Price Investment Management,

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Whale Moves Timeline (8 Quarters)

Biggest dollar-value position changes among top 10 holders

NEWVANGUARD CAPITAL MANAGEMENT$1.9B6.8M shr

NEWVANGUARD PORTFOLIO MANAGEMENT$1.5B5.2M shr

SOLDALLIANCEBERNSTEIN L.P.$378M1.5M shr

BOUGHTMORGAN STANLEY$186M661K shr

BOUGHTBlackRock$172M613K shr

SOLDFMR$105M418K shr

SOLDALLIANCEBERNSTEIN L.P.$53M211K shr

BOUGHTMORGAN STANLEY$39M155K shr

BOUGHTVANGUARD GROUP$30M120K shr

SOLDBlackRock$27M109K shr

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Institutional Trends (8 Quarters)

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Institutional Holders

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