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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)

Latest Changes

Indicators
Latest (2026Q1)
Previous (2025Q4)
Change
Mkt Value (report date)
61.63B
62.13B
-0.81%
Shares Held
2861
2760
+3.66%
Buys
46
0
--
Sells
23
0
--

Sector Allocation

No.
Name
% Portfolio
Shares Traded
Mkt Value (Date)
Market Value
Shares Held
Report Date
Watchlist
1.61%
-122.24K
$1.06B
--
0.00
2026-03-31
1.55%
-1.81M
$1.02B
--
0.00
2026-03-31
1.18%
+3.08M
$779.85M
--
0.00
2026-03-31
1.18%
+571.10K
$779.75M
--
0.00
2026-03-31
1.11%
-848.16K
$730.74M
--
0.00
2026-03-31
1.06%
+38.80K
$698.06M
--
0.00
2026-03-31
0.89%
-187.05K
$588.75M
--
0.00
2026-03-31
8
Franco Nevada Ord Shs (CA)
FNV
0.83%
-259.20K
$549.30M
--
0.00
2026-03-31
0.77%
-409.43K
$508.00M
--
0.00
2026-03-31
0.67%
+1.66M
$440.70M
--
0.00
2026-03-31

Latest Trades

No.
Name
Action
Shares Traded
% Change
Shares Held
Mkt Value (Date)
Report Date
Watchlist
Exit
-27.52M
-50.00%
0.00
$55.28M
2026-03-31
Exit
+13.69M
0.00%
0.00
$62.69M
2026-03-31
Exit
+13.31M
0.00%
0.00
$48.73M
2026-03-31
Exit
+8.29M
0.00%
0.00
$52.06M
2026-03-31
Exit
+8.24M
0.00%
0.00
$104.04M
2026-03-31
Exit
+7.55M
0.00%
0.00
$106.41M
2026-03-31
Exit
-7.18M
-50.00%
0.00
$236.63K
2026-03-31
8
Denison Mines Ord Shs (CA)
DML
Exit
+6.93M
0.00%
0.00
$33.50M
2026-03-31
Exit
-6.47M
-50.00%
0.00
$233.80M
2026-03-31
Exit
+6.30M
0.00%
0.00
$44.29M
2026-03-31

Holding Performance

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