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 Seilern Investment Ltd

13F Portfolio OverlapQ1 2026Seilern Investment Ltd portfolio →

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Most similar hedge funds by 13F overlap

Seilern Investment Management Ltd is an institutional investor managing $794M across 24 U.S. equity positions as of Q1 2026. Based on the overlap of conviction holdings in their latest 13F filings, the hedge funds with portfolios most similar to Seilern Investment Ltd are OBERNDORF WILLIAM E, Quantum , / NJ, GUARDCAP ASSET Ltd, with shared positions in $UNH, $VEEV, $ADSK, $TYL, $IDXX, $BKNG. The full ranking of 25 similar funds is below.

#1OBERNDORF WILLIAM EActive

Substantial overlap · 3 shared positions

$UNH $VEEV $ADSK

$53M

7 positions

#2Quantum Capital Management, LLC / NJActive

Notable overlap · 7 shared positions

$VEEV $TYL $IDXX $BKNG $CPRT $GGG

$781M

34 positions

#3GUARDCAP ASSET MANAGEMENT LtdSmart money

Notable overlap · 6 shared positions

$UNH $ADBE $ACN $BKNG $ADP $CME

$1.7B

27 positions

#4BOURNE LENT ASSET MANAGEMENT INCActive

Notable overlap · 4 shared positions

$IDXX $ADBE $ISRG $BKNG

$272M

63 positions

#5Local Pensions Partnership Investment LtdActive

Notable overlap · 9 shared positions

$CDNS $ADSK $TYL $IDXX $WST $VEEV

$4.6B

32 positions

#6Navera Investment Management Ltd.Active

Notable overlap · 6 shared positions

$ISRG $CDNS $ACN $ADP $UNH $EW

$3.9B

56 positions

#7Fundsmith LLPActive

Notable overlap · 4 shared positions

$IDXX $ZTS $MTD $ADP

$12.8B

34 positions

#8Haven Capital Group, Inc.Active

Notable overlap · 4 shared positions

$IDXX $EW $ISRG $ADBE

$108M

37 positions

#9FUNDSMITH INVESTMENT SERVICES LTD.Smart money

Notable overlap · 4 shared positions

$IDXX $MTD $ZTS $ADP

$4.4B

24 positions

#10Liontrust Investment Partners LLPActive

Notable overlap · 7 shared positions

$CDNS $ISRG $EW $ADSK $IDXX $WST

$6.7B

204 positions

#11Ruane, Cunniff & Goldfarb L.P.Active

Notable overlap · 3 shared positions

$ZTS $UNH $ACN

$6.0B

50 positions

#12Biondo Investment Advisors, LLCActive

Notable overlap · 4 shared positions

$ISRG $IDXX $ADBE $ADP

$780M

82 positions

#13ACADEMY CAPITAL MANAGEMENT INC/TXActive

Notable overlap · 3 shared positions

$ZTS $UNH $IDXX

$699M

37 positions

#14POLEN CAPITAL MANAGEMENT LLCActive

Notable overlap · 4 shared positions

$ZTS $IDXX $ISRG $ACN

$14.5B

221 positions

#15Longview Partners (Guernsey) LTDActive

Notable overlap · 5 shared positions

$WST $UNH $BKNG $CME $MCO

$7.1B

25 positions

#16NZS Capital, LLCActive

Notable overlap · 3 shared positions

$CDNS $ISRG $TYL

$3.0B

58 positions

#17CAPITAL COUNSEL LLC/NYSmart money

Notable overlap · 4 shared positions

$IDXX $MTD $ADP $CME

$2.4B

62 positions

#18AMERICAN CAPITAL MANAGEMENT INCActive

Notable overlap · 4 shared positions

$IDXX $VEEV $TYL $TW

$1.9B

75 positions

#19Vantage Investment Partners, LLCActive

Notable overlap · 4 shared positions

$UNH $IDXX $ZTS $BKNG

$1.4B

64 positions

#20WORMSER FRERES GESTIONActive

Notable overlap · 7 shared positions

$EW $ISRG $ZTS $IDXX $VEEV $UNH

$139M

42 positions

#21Hyperion Capital Advisors LPActive

Notable overlap · 3 shared positions

$UNH $ZTS $WST

$208M

68 positions

#22Manitou Investment Management Ltd.Smart money

Notable overlap · 3 shared positions

$IDXX $EW $CME

$506M

52 positions

#23RIVERPARK CAPITAL MANAGEMENT LLC

Notable overlap · 6 shared positions

$ISRG $UNH $ADSK $ADBE $ZTS $BKNG

$52M

36 positions

#24SCHARF INVESTMENTS, LLCActive

Notable overlap · 5 shared positions

$ZTS $ADBE $UNH $BKNG $CME

$3.2B

70 positions

#25Fulcrum Capital LLCActive

Notable overlap · 5 shared positions

$EW $ADBE $ZTS $UNH $CME

$461M

101 positions

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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.