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 DRIEHAUS

13F Portfolio OverlapQ2 2026DRIEHAUS portfolio →

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Most similar hedge funds by 13F overlap

DRIEHAUS CAPITAL MANAGEMENT LLC is an institutional investor managing $17.3B across 354 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 DRIEHAUS are Siren, L.L.C., EMERALD MUTUAL FUND ADVISERS, SUMMIT PARTNERS PUBLIC ASSET, with shared positions in $XENE, $SYRE, $DFTX, $EWTX, $CRNX, $SEPN. The full ranking of 25 similar funds is below.

#1Siren, L.L.C.Active

Notable overlap · 7 shared positions

$XENE $SYRE $DFTX $EWTX $CRNX $SEPN

$4.9B

117 positions

#2EMERALD MUTUAL FUND ADVISERS TRUSTPassive

Some overlap · 9 shared positions

$GH $SYRE $CECO $LASR $RSI $SEI

$2.8B

197 positions

#3SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLCPassive

Some overlap · 8 shared positions

$SIMO $GH $XMTR $CRDO $ONTO $RSI

$5.7B

155 positions

#4EMERALD ADVISERS, LLCPassive

Some overlap · 9 shared positions

$GH $SYRE $CECO $LASR $RSI $SEI

$4.2B

237 positions

#5Lisanti Capital Growth, LLCPassive

Some overlap · 8 shared positions

$SIMO $UCTT $XMTR $CECO $CRS $SEI

$455M

109 positions

#6OBERWEIS ASSET MANAGEMENT INC/Active

Some overlap · 8 shared positions

$SIMO $UCTT $CRDO $CRS $RSI $SITM

$4.8B

176 positions

#7Hood River Capital Management LLCActive

Some overlap · 8 shared positions

$GH $PRAX $XMTR $RSI $DAVE $SRRK

$13.8B

166 positions

#8Informed Momentum Co LLCPassive

Some overlap · 8 shared positions

$GH $VICR $CECO $SITM $SEI $BE

$1.1B

268 positions

#9SILVERARC CAPITAL MANAGEMENT, LLCActive

Some overlap · 4 shared positions

$DFTX $PRAX $GH $XENE

$962M

73 positions

#10NEXT CENTURY GROWTH INVESTORS LLCPassive

Some overlap · 7 shared positions

$GH $UCTT $XMTR $CRS $SITM $STRL

$1.9B

113 positions

#11Affinity Asset Advisors, LLCActive

Some overlap · 4 shared positions

$PRAX $XENE $SYRE $APGE

$2.2B

113 positions

#12First Light Asset Management, LLCActive

Some overlap · 5 shared positions

$CRNX $APGE $GH $EWTX $SEPN

$1.6B

31 positions

#13HighVista Strategies LLCPassive

Some overlap · 4 shared positions

$DFTX $PRAX $SYRE $EWTX

$439M

147 positions

#14Granahan Investment Management, LLCPassive

Some overlap · 7 shared positions

$SIMO $NXT $CRS $ONTO $DAVE $LTH

$2.8B

150 positions

#15StemPoint Capital LPPassive

Some overlap · 5 shared positions

$PRAX $SYRE $DFTX $XENE $SRRK

$581M

84 positions

#16Nicholas Investment Partners, LPPassive

Some overlap · 7 shared positions

$XENE $CRS $RSI $SITM $STRL $LTH

$1.8B

204 positions

#17PERCEPTIVE ADVISORS LLCActive

Some overlap · 4 shared positions

$PRAX $SYRE $APGE $EWTX

$6.7B

109 positions

#18First Turn Management, LLCActive

Some overlap · 4 shared positions

$PRAX $XENE $APGE $SRRK

$935M

31 positions

#19Cormorant Asset Management, LPActive

Some overlap · 5 shared positions

$PRAX $EWTX $SYRE $DFTX $CRNX

$2.0B

50 positions

#20PSP Research LLCActive

Some overlap · 4 shared positions

$DFTX $CRNX $SYRE $PTCT

$188M

75 positions

#21Boxer Capital Management, LLCSmart money

Some overlap · 5 shared positions

$DFTX $PRAX $APGE $PTCT $SYRE

$1.3B

63 positions

#22HighMark Wealth Management LLCActive

Some overlap · 4 shared positions

$APGE $CRNX $XENE $EWTX

$299M

565 positions

#23Science & Technology Partners, L.P.Active

Some overlap · 5 shared positions

$GH $PL $WULF $SITM $BE

$593M

84 positions

#24ORBIMED ADVISORS LLCActive

Some overlap · 4 shared positions

$PRAX $GH $EWTX $XENE

$5.4B

129 positions

#25QP WEALTH MANAGEMENT, LLCPassive

Some overlap · 5 shared positions

$PL $SIMO $CW $SRRK $BE

$70M

71 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.