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 Impax Asset Group plc

13F Portfolio OverlapQ2 2026Impax Asset Group plc portfolio →

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Most similar hedge funds by 13F overlap

Impax Asset Management Group plc is an institutional investor managing $15.4B across 284 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 Impax Asset Group plc are Foresight Group Ltd Liability Partnership, MIROVA, Triodos Investment BV, with shared positions in $XYL, $AWK, $VLTO, $ECL, $APTV, $A. The full ranking of 25 similar funds is below.

#1Foresight Group Ltd Liability PartnershipPassive

Notable overlap · 9 shared positions

$XYL $AWK $VLTO $ECL $APTV $A

$556M

62 positions

#2MIROVAActive

Notable overlap · 12 shared positions

$KLAC $VRT $ECL $VLTO $IEX $XYL

$2.7B

185 positions

#3Triodos Investment Management BVActive

Notable overlap · 7 shared positions

$KLAC $VLTO $WMS $XYL $WTS $DE

$1.6B

50 positions

#4Mirova US LLCActive

Notable overlap · 8 shared positions

$XYL $ECL $HUBB $VRT $VLTO $WTS

$9.3B

45 positions

#5Ayrshire Capital Management LLCPassive

Notable overlap · 4 shared positions

$KLAC $LIN $ECL $APH

$214M

50 positions

#6DUDLEY & SHANLEY, INC.Active

Notable overlap · 6 shared positions

$XYL $AWK $ECL $A $APH $BMI

$662M

37 positions

#7NORTHSTAR ASSET MANAGEMENT INCActive

Notable overlap · 5 shared positions

$LIN $XYL $VLTO $KLAC $BMI

$341M

91 positions

#8Robeco Schweiz AGActive

Notable overlap · 8 shared positions

$VRT $XYL $A $MRVL $VLTO $IEX

$6.2B

126 positions

#9Liontrust Investment Partners LLP

Notable overlap · 7 shared positions

$VLTO $ECL $CTAS $A $CNM $WMS

$6.8B

194 positions

#10Stonehage Fleming Financial Services Holdings Ltd

Notable overlap · 4 shared positions

$KLAC $CTAS $APH $CDNS

$2.9B

215 positions

#11Bristol Gate Capital Partners Inc.Active

Notable overlap · 5 shared positions

$KLAC $CTAS $APH $WAB $WCN

$1.4B

33 positions

#12EDENTREE ASSET MANAGEMENT LtdActive

Notable overlap · 6 shared positions

$XYL $WCN $WMS $VMI $LIN $CDNS

$328M

66 positions

#13Aureus Asset Management, LLCPassive

Notable overlap · 6 shared positions

$LIN $WCN $AWK $IEX $WAB $A

$1.6B

239 positions

#14Avanda Investment Management Pte. Ltd.Active

Notable overlap · 4 shared positions

$KLAC $LIN $APH $TEL

$299M

39 positions

#15PGGM InvestmentsActive

Notable overlap · 5 shared positions

$LIN $WCN $VLTO $CDNS $SNPS

$4.1B

59 positions

#16NZS Capital, LLCActive

Notable overlap · 5 shared positions

$KLAC $LIN $APH $MRVL $CDNS

$3.9B

61 positions

#17MOUNTAIN PACIFIC INVESTMENT ADVISERS LLCActive

Notable overlap · 6 shared positions

$XYL $VRT $ECL $IEX $APH $VLTO

$635M

146 positions

#18PARNASSUS INVESTMENTS, LLCActive

Notable overlap · 5 shared positions

$KLAC $LIN $HUBB $SNPS $DE

$37.4B

135 positions

#19Findlay Park Partners LLPActive

Notable overlap · 5 shared positions

$KLAC $WCN $ECL $A $CNM

$7.4B

49 positions

#20JENSEN INVESTMENT MANAGEMENT INCActive

Notable overlap · 5 shared positions

$KLAC $CTAS $APH $CDNS $ECL

$4.1B

83 positions

#21ALBERT D MASON INCPassive

Notable overlap · 3 shared positions

$KLAC $LIN $HUBB

$176M

139 positions

#22Retail Employees Superannuation Pty Ltd as trustee for RetaiActive

Notable overlap · 4 shared positions

$LIN $CTAS $APH $SNPS

$373M

28 positions

#23Progressive Investment Management CorpActive

Notable overlap · 6 shared positions

$KLAC $APH $LIN $CDNS $DE $CTAS

$454M

56 positions

#24Benchmark Investment Advisors LLCPassive

Notable overlap · 4 shared positions

$KLAC $VRT $APH $MRVL

$228M

70 positions

#25Decatur Capital Management, Inc.Active

Notable overlap · 4 shared positions

$KLAC $ECL $APH $CDNS

$295M

53 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.