Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
Search
Sign in
Sign up
Optiver Holding’s
908 Devices
MASS
Stock Holding History
Optiver Holding’s Portfolio
MASS Stock Details
MASS Fund Activity
Bought
Maintained
Sold
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
2026
Q1
$1.73K
Sell
282
-184
-39%
-$1.15K
﹤0.01%
1905
2025
Q4
$2.45K
Hold
466
–
–
﹤0.01%
1899
2025
Q3
$4.08K
Buy
+466
New
+$3.1K
﹤0.01%
1924
Other funds holding MASS
FLAM
First Light Asset Management
Edina, Minnesota
$1.12B AUM
114.45%
1-Year Est. Return
AIC
AWM Investment Company
New York
$903M AUM
163.47%
1-Year Est. Return
AIM
ARK Investment Management
St. Petersburg, Florida
$12.9B AUM
64.92%
1-Year Est. Return
BlackRock
New York
$5.7T AUM
30.48%
1-Year Est. Return
NIM
Needham Investment Management
New York
$1.96B AUM
101.23%
1-Year Est. Return
VCM
Vanguard Capital Management
Malvern, Pennsylvania
$4.04T AUM
First Eagle Investment Management
New York
$59B AUM
32.99%
1-Year Est. Return
Geode Capital Management
Boston, Massachusetts
$1.61T AUM
30.72%
1-Year Est. Return
GIM
Granahan Investment Management
Waltham, Massachusetts
$2.07B AUM
56.45%
1-Year Est. Return
State Street
Boston, Massachusetts
$2.9T AUM
29.55%
1-Year Est. Return
Sign up
Sign in
Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
Theme
Close