James Simons
Renaissance Technologies LLC
James Simons, along with a team of mathematicians, physicists, and computer scientists, founded Renaissance Technologies LLC — arguably the best quantitative investment company. Its flagship Medallion Fund has delivered an average annual return of over 66% since 1988.
Sector Allocation
Level 3 sector breakdown
Level 1 sector breakdown
Level 2 sector breakdown
Level 3 sector breakdown
Software & IT Services
Semiconductors & Semiconductor Equipment
Pharmaceuticals
Metals & Mining
Oil & Gas
Banking Services
Machinery, Tools, Heavy Vehicles, Trains & Ships
Biotechnology & Medical Research
Computers, Phones & Household Electronics
Investment Banking & Investment Services
Construction & Engineering
Other
Holdings
2026Q2
2026Q2
2026Q1
2025Q1
No.
Name
% Portfolio
Shares Traded
Mkt Value (Date)
Market Value
Shares Held
Industry
Report Date
Watchlist
1.22%
+582.44K
$883.00M
$883.00M
7.57M
Software & IT Services
2026-06-30
1.01%
-299.00K
$730.62M
$730.62M
13.43M
Biotechnology & Medical Research
2026-06-30
0.79%
+748.96K
$571.56M
$142.89M
748.96K
Software & IT Services
2026-06-30