SMWB icon

Similarweb
SMWB

Overview Fund Activity

109 hedge funds and large institutions have $329M invested in Similarweb in 2025 Q2 according to their latest regulatory filings, with 21 funds opening new positions, 45 increasing their positions, 28 reducing their positions, and 20 closing their positions.

Holders
109
Holders Change
–
Holders Change %
0%
% of All Funds
1.46%
Holding in Top 10
4
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-20%
% of All Funds
0.05%
New
21
Increased
45
Reduced
28
Closed
20
Calls
$3.59M
Puts
$6.5M
Net Calls
-$2.91M
Net Calls Change
-$5.98M

Top Buyers

1
CP
1
CenterBook Partners
Connecticut
$11.3M
2
NL
2
Nuveen LLC
North Carolina
$10.2M
3
Morgan Stanley
3
Morgan Stanley
New York
$7.16M
4
PCM
4
Penn Capital Management
Pennsylvania
$3.23M
5
Citadel Advisors
5
Citadel Advisors
Florida
$6.9M

Top Sellers

1
Jennison Associates
1
Jennison Associates
New York
$0
2
PF
2
Phoenix Financial
Israel
$21.1M
3
T. Rowe Price Investment Management
3
T. Rowe Price Investment Management
Maryland
$0
4
CCPM
4
Cooper Creek Partners Management
New York
$0
5
SSA
5
Schonfeld Strategic Advisors
New York
$115K
Name Market Value Shares Shares
Change 		Shares
Change %
HRCM
51
Hood River Capital Management
Florida
$615K 78,446 +13,446 +21%
LCM
52
Legato Capital Management
California
$610K 77,816 -193 -0.2%
Russell Investments Group
53
Russell Investments Group
United Kingdom
$593K 75,603 -194,991 -72%
PEAK6
54
PEAK6
Illinois
$540K 68,935 +23,757 +53%
Simplex Trading
55
Simplex Trading
Illinois
$515K 65,770 +25,456 +63%
TI
56
Tidal Investments
Wisconsin
$483K 61,574 +24,568 +66%
HF
57
HRT Financial
New York
$456K 58,245 +33,718 +137%
Jane Street
58
Jane Street
New York
$410K 52,269 +35,210 +206%
Two Sigma Advisers
59
Two Sigma Advisers
New York
$407K 51,900 +15,400 +42%
California State Teachers Retirement System (CalSTRS)
60
California State Teachers Retirement System (CalSTRS)
California
$389K 49,654 +11,356 +30%
Federated Hermes
61
Federated Hermes
Pennsylvania
$376K 48,000 +16,500 +52%
BNP Paribas Financial Markets
62
BNP Paribas Financial Markets
France
$344K 43,914 -29,897 -41%
PTC
63
Petrus Trust Company
Texas
$331K 42,211 +42,211 New
Voloridge Investment Management
64
Voloridge Investment Management
Florida
$327K 41,771 -120,933 -74%
D.E. Shaw & Co
65
D.E. Shaw & Co
New York
$307K 39,113 +22,963 +142%
UBS Group
66
UBS Group
Switzerland
$306K 39,044 -26,210 -40%
Legal & General Group
67
Legal & General Group
United Kingdom
$299K 38,139 – –
JFG
68
Jefferies Financial Group
New York
$282K 36,000 +36,000 New
Vanguard Group
69
Vanguard Group
Pennsylvania
$277K 35,291 – –
MF
70
Magnetar Financial
Illinois
$272K 34,633 +34,633 New
Pathstone Holdings
71
Pathstone Holdings
New Jersey
$259K 33,010 – –
SG Americas Securities
72
SG Americas Securities
New York
$255K 32,580 +32,580 New
Cetera Investment Advisers
73
Cetera Investment Advisers
Illinois
$241K 30,726 -9,435 -23%
CAM
74
Cresset Asset Management
Illinois
$236K 30,103 -4,764 -14%
Man Group
75
Man Group
United Kingdom
$209K 26,700 +26,700 New
1 2
3
4 5