AI Holders Summary · Q2 2026

148 institutions reported REI in Q2 2026. PEAK6 LLC leads at 16.1% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(6 on this page)

#HolderValueShares% port.Quarter

PEAK6 LLC

CIK 0001389958

$18M17.1M0.04%Q2 2026 02

BlackRock, Inc.

CIK 0002012383

$13M12.1M0.00%Q2 2026 03

ADAGE CAPITAL PARTNERS GP, L.L.C.

CIK 0001165408

$12M10.7M0.02%Q2 2026 04

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$10M8.9M0.00%Q2 2026 05

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$9M8.0M0.01%Q2 2026 06

BARCLAYS PLC

CIK 0000312069

$8M7.4M0.00%Q2 2026 07

Vanguard Portfolio Management

CIK 0002100121· Index

$5M4.6M0.00%Q2 2026 08

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$5M4.6M0.00%Q2 2026 09

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$4M4.1M0.01%Q2 2026 10

ACADIAN ASSET MANAGEMENT LLC

CIK 0000916542

$4M2.5M0.01%Q1 2026 11

CDC Financial, Inc.

CIK 0002077836

$4M3.5M1.60%Q2 2026 12

UBS Group AG

CIK 0001610520

$3M3.1M0.00%Q2 2026 13

Connor, Clark & Lunn Investment Management Ltd.

CIK 0001596800

$3M2.9M0.01%Q2 2026 14

JANE STREET GROUP, LLC

CIK 0001595888· Market maker

$3M2.0M0.00%Q1 2026 15

FIRST TRUST ADVISORS LP

CIK 0001125816· Index

$3M2.7M0.00%Q2 2026 16

STATE STREET CORP

CIK 0000093751

$3M2.5M0.00%Q2 2026 17

CITIGROUP INC

CIK 0000831001

$3M2.4M0.00%Q2 2026 18

BRIDGEWAY CAPITAL MANAGEMENT, LLC

CIK 0001107261

$2M2.2M0.04%Q2 2026 19

GOLDMAN SACHS GROUP INC

CIK 0000886982

$2M1.5M0.00%Q2 2026 20

NORTHERN TRUST CORP

CIK 0000073124· Index

$2M1.5M0.00%Q2 2026

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