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186 hedge funds and large institutions have $1.21B invested in Rambus in 2018 Q1 according to their latest regulatory filings, with 34 funds opening new positions, 63 increasing their positions, 55 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

173% more call options, than puts

Call options by funds: $12.5M | Put options by funds: $4.56M

89% more first-time investments, than exits

New positions opened: 34 | Existing positions closed: 18

15% more repeat investments, than reductions

Existing positions increased: 63 | Existing positions reduced: 55

8% more funds holding

Funds holding: 172186 (+14)

0.63% less ownership

Funds ownership: 81.86%81.23% (-0.63%)

6% less capital invested

Capital invested by funds: $1.28B → $1.21B (-$72.1M)

Holders
186
Holders Change
+14
Holders Change %
+8.14%
% of All Funds
4.26%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
34
Increased
63
Reduced
55
Closed
18
Calls
$12.5M
Puts
$4.56M
Net Calls
+$7.91M
Net Calls Change
-$2.56M
Name Holding Trade Value Shares
Change
Change in
Stake
EP
126
Elkfork Partners
Oregon
$214K +$50.4K +3,762 +31%
SEI Investments
127
SEI Investments
Pennsylvania
$213K -$653K -48,784 -75%
SSA
128
Schonfeld Strategic Advisors
New York
$211K -$87.3K -6,524 -29%
HM
129
Harvest Management
New York
$211K +$9.37K +700 +5%
AB
130
Amalgamated Bank
New York
$207K -$3.43K -256 -2%
MF
131
Magnetar Financial
Illinois
$157K -$12.8K -955 -8%
HDIM
132
Hanson & Doremus Investment Management
Vermont
$157K
TAM
133
Tyers Asset Management
Texas
$156K +$36.6K +2,736 +31%
AQR Capital Management
134
AQR Capital Management
Connecticut
$149K +$149K +11,098 New
SCM
135
Shelton Capital Management
Colorado
$148K
EIM
136
Essex Investment Management
Massachusetts
$148K +$147K +10,984 New
ZCA
137
Zeke Capital Advisors
Pennsylvania
$148K +$148K +11,028 New
US Bancorp
138
US Bancorp
Minnesota
$141K +$138K +10,286 +4,945%
QIM
139
Quantitative Investment Management
Virginia
$138K -$578K -43,200 -81%
COPPSERS
140
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$138K +$138K +10,273 New
AIP
141
Ameritas Investment Partners
Nebraska
$131K
RCM
142
Riverhead Capital Management
Delaware
$108K +$24.1K +1,800 +29%
UBS Group
143
UBS Group
Switzerland
$93K -$114K -8,483 -55%
LIA
144
LS Investment Advisors
Michigan
$80K
ZB
145
Zions Bancorporation
Utah
$76K -$6.65K -497 -8%
Zurich Cantonal Bank
146
Zurich Cantonal Bank
Switzerland
$72K
EMG
147
ETF Managers Group
New Jersey
$71K +$8.94K +668 +14%
Parallax Volatility Advisers
148
Parallax Volatility Advisers
California
$70K -$154K -11,540 -69%
GT
149
Glenmede Trust
Pennsylvania
$49K
QT
150
Quantbot Technologies
New York
$49K +$49.4K +3,693 New