How is hedge fund similarity measured?

Similarity is computed from each fund's top conviction holdings in their latest 13F filing. Funds are scored by the overlap of distinctive shared positions (the mega-caps that nearly every fund owns are excluded), so the ranking reflects genuinely shared strategy rather than common index exposure.

Hedge Funds Similar to SIMPLEX TRADING

13F Portfolio OverlapQ2 2026SIMPLEX TRADING portfolio →

Institutional-grade research for retail investors

Most similar hedge funds by 13F overlap

SIMPLEX TRADING, LLC is an institutional investor managing $170.6B across 9,154 U.S. equity positions as of Q2 2026. Based on the overlap of conviction holdings in their latest 13F filings, the hedge funds with portfolios most similar to SIMPLEX TRADING are IMC-Chicago, GROUP ONE TRADING, SUSQUEHANNA INTERNATIONAL GROUP, LLP, with shared positions in $SNDK, $PLTR, $SLV, $MRVL, $CRWD, $BABA. The full ranking of 25 similar funds is below.

#1IMC-Chicago, LLCPassive

Some overlap · 9 shared positions

$SNDK $PLTR $SLV $MRVL $CRWD $BABA

$418.7B

6,591 positions

#2GROUP ONE TRADING, L.P.Passive

Some overlap · 8 shared positions

$SNDK $SLV $PLTR $MRVL $HOOD $BABA

$71.1B

7,824 positions

#3SUSQUEHANNA INTERNATIONAL GROUP, LLPPassive

Some overlap · 8 shared positions

$SNDK $PLTR $SLV $MRVL $CRWD $ARM

$1.3T

13,275 positions

#4LMR Partners LLPPassive

Some overlap · 6 shared positions

$SLV $IBIT $SNDK $PLTR $MRVL $BABA

$26.8B

1,491 positions

#5Brevan Howard Capital Management LPPassive

Some overlap · 7 shared positions

$SNDK $PLTR $IBIT $CRWD $HOOD $BABA

$13.5B

2,030 positions

#6CITADEL ADVISORS LLCPassive

Some overlap · 8 shared positions

$SNDK $PLTR $MRVL $CRWD $SLV $HOOD

$875.1B

13,575 positions

#7STG SECURITIES, LLCPassive

Slight overlap · 9 shared positions

$SNDK $MRVL $BABA $PLTR $HOOD $ARM

$1.4B

501 positions

#8Greenwich Wealth Management LLCActive

Slight overlap · 5 shared positions

$SNDK $SLV $PLTR $HOOD $NBIS

$2.7B

296 positions

#9NEOS Investment Management LLCActive

Slight overlap · 5 shared positions

$SNDK $PLTR $IBIT $MRVL $CRWD

$27.1B

578 positions

#10CANTOR FITZGERALD, L. P.Active

Slight overlap · 5 shared positions

$SNDK $PLTR $IBIT $MRVL $HOOD

$9.2B

319 positions

#11GF FUND MANAGEMENT CO. LTD.Active

Slight overlap · 6 shared positions

$SNDK $PLTR $MRVL $CRWD $ARM $ASML

$8.3B

587 positions

#12Invesco Ltd.Passive

Slight overlap · 6 shared positions

$SNDK $PLTR $MRVL $CRWD $ARM $ASML

$1.3T

3,819 positions

#13SBI Securities Co., Ltd.Passive

Slight overlap · 6 shared positions

$SNDK $PLTR $MRVL $CRWD $ARM $NBIS

$4.4B

4,072 positions

#14INVESTMENT PARTNERS, LTD.Passive

Slight overlap · 5 shared positions

$SLV $PLTR $IBIT $CRWD $ASML

$320M

167 positions

#15Clear Street Group Inc.Active

Slight overlap · 6 shared positions

$SNDK $PLTR $MRVL $HOOD $ARM $NBIS

$39.5B

1,414 positions

#16SLT Holdings LLCPassive

Slight overlap · 6 shared positions

$SNDK $PLTR $CRWD $HOOD $ASML $NBIS

$160M

150 positions

#17Kultura Capital Management LPActive

Slight overlap · 6 shared positions

$SNDK $PLTR $CRWD $HOOD $ASML $NBIS

$553M

66 positions

#18PROFUND ADVISORS LLCPassive

Slight overlap · 6 shared positions

$SNDK $PLTR $MRVL $CRWD $ARM $ASML

$3.6B

1,175 positions

#19Marex Group plcPassive

Slight overlap · 6 shared positions

$SNDK $IBIT $MRVL $HOOD $ARM $NBIS

$23.6B

1,117 positions

#20JANE STREET GROUP, LLCPassive

Slight overlap · 5 shared positions

$SNDK $PLTR $MRVL $SLV $IBIT

$1.2T

11,385 positions

#21Riggs Asset Managment Co. Inc.Passive

Slight overlap · 5 shared positions

$SNDK $PLTR $MRVL $CRWD $C

$560M

132 positions

#22Strategic Investment Solutions, Inc. /ILPassive

Slight overlap · 4 shared positions

$SNDK $SLV $PLTR $ARM

$437M

707 positions

#23Markin Volterra Fund LPActive

Slight overlap · 5 shared positions

$SNDK $PLTR $MRVL $CRWD $ARM

$147M

69 positions

#24Gordian Capital Singapore Pte LtdPassive

Slight overlap · 5 shared positions

$SNDK $SLV $BABA $C $NBIS

$58M

126 positions

#25Benchmark Investment Advisors LLCPassive

Slight overlap · 5 shared positions

$SNDK $PLTR $MRVL $CRWD $ASML

$228M

70 positions

Compare SIMPLEX TRADING’s portfolio side by side

See the exact shared positions, conviction overlap, sector alignment, and where these funds diverge — and run the same analysis on any of 8,700+ institutions.

View SIMPLEX TRADING’s holdings

Similarity is derived from each fund’s latest 13F-HR filing with the SEC. Funds are ranked by the overlap of distinctive conviction holdings; near-universal mega-cap positions are excluded so the ranking reflects shared strategy, not common index exposure. Data is informational only and not investment advice.