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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.

Shares Held
Asset Size
% Top 10
5201
$65.97B
11.16%
Latest2025Q3
Top BuysPLUG (US)
Top SellsOPEN (US)

Sector Allocation

Level 3 sector breakdown
Level 1 sector breakdown
Level 2 sector breakdown
Level 3 sector breakdown
Software & IT Services
Pharmaceuticals
Semiconductors & Semiconductor Equipment
Banking Services
Machinery, Tools, Heavy Vehicles, Trains & Ships
Metals & Mining
Computers, Phones & Household Electronics
Biotechnology & Medical Research
Healthcare Equipment & Supplies
Oil & Gas
Food & Tobacco
Other

Holdings

2026Q1
2026Q1
2025Q4
2025Q3
2025Q2
2025Q1
2024Q4
2024Q3
2024Q2
2024Q1
2023Q4
2023Q3
2023Q2
No.
Name
% Portfolio
Shares Traded
Mkt Value (Date)
Market Value
Shares Held
Industry
Report Date
Watchlist
1.61%
-122.24K
$1.06B
--
0.00
Pharmaceuticals
2026-03-31
1.55%
-1.81M
$1.02B
--
0.00
Software & IT Services
2026-03-31
1.18%
+3.08M
$779.85M
--
0.00
Computers, Phones & Household Electronics
2026-03-31
1.18%
+571.10K
$779.75M
--
0.00
Food & Tobacco
2026-03-31
1.11%
-848.16K
$730.74M
--
0.00
Semiconductors & Semiconductor Equipment
2026-03-31
1.06%
+38.80K
$698.06M
--
0.00
Software & IT Services
2026-03-31
0.89%
-187.05K
$588.75M
--
0.00
Biotechnology & Medical Research
2026-03-31
8
Franco Nevada Ord Shs (CA)
FNV
0.83%
-259.20K
$549.30M
--
0.00
Metals & Mining
2026-03-31
0.77%
-409.43K
$508.00M
--
0.00
Computers, Phones & Household Electronics
2026-03-31
0.67%
+1.66M
$440.70M
--
0.00
Semiconductors & Semiconductor Equipment
2026-03-31
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