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MAD RIVER INVESTORS

Position in CBOE — Cboe Global Markets, Inc.

CIK 1384484 BOSTON, MA

Position in CBOE

as of Jun 30, 2026 · filed Aug 3, 2026
Position Value
$1,627,102
-$250,445 QoQ
Shares Held
6,705
+0.4% QoQ
Ownership
0.006%
of shares outstanding
% of Portfolio
0.61%
of 13F equity value
Holder Rank
#417
of 977 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in CBOE Over Time

Shares Held

Position Value (USD)

Position in Financial Data & Stock Exchanges

Financial Services · as of Jun 30, 2026

MAD RIVER INVESTORS holds $2,593,023 across 2 Financial Data & Stock Exchanges names. CBOE ranks #1 (62.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 CBOE
Cboe Global Markets, Inc.
This page
6,705 $1,627,102

All Filings in CBOE

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,627,102 6,705
2026-03-31 $1,877,547 6,680
2025-12-31 $1,679,190 6,690
2025-09-30 $1,632,138 6,655
2025-06-30 $1,557,842 6,680
2025-03-31 $1,406,392 6,215
2024-12-31 $1,212,457 6,205
2024-09-30 $1,245,609 6,080
2024-06-30 $1,033,964 6,080
2024-03-31 $1,117,078 6,080
2023-12-31 $1,045,468 5,855
2023-09-30 $1,383,239 8,855
2023-06-30 $1,239,329 8,980
2023-03-31 $1,202,119 8,955
2022-12-31 $1,145,541 9,130
2022-09-30 $1,156,681 9,855
2022-06-30 $1,115,487 9,855
2022-03-31 $1,180,242 10,315
2021-12-31 $1,475,476 11,315
2021-09-30 $1,425,628 11,510
2021-06-30 $1,370,265 11,510
2021-03-31 $1,167,996 11,835
2020-12-31 $1,081,123 11,610
2020-09-30 $1,185,367 13,510
2020-06-30 $1,307,319 14,015
2020-03-31 $1,252,623 14,035