Jim Simons Renaissance Technologies
Jim Simons is the founder of Renaissance Technologies, one of the most successful quantitative hedge funds in the world. Before his career in finance, he served as a mathematics professor and made significant contributions to differential geometry. Simons applied his analytical expertise to develop sophisticated, algorithm-driven trading strategies, earning consistently high returns for investors.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Alphabet (Google) Class A
GOOGL
|
+$546M |
| 2 |
Microsoft
MSFT
|
+$480M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$362M |
| 4 |
Meta Platforms (Facebook)
META
|
+$350M |
| 5 |
Coca-Cola
KO
|
+$266M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Robinhood
HOOD
|
+$1.04B |
| 2 |
Palantir
PLTR
|
+$800M |
| 3 |
Apple
AAPL
|
+$516M |
| 4 |
Netflix
NFLX
|
+$326M |
| 5 |
NVIDIA
NVDA
|
+$313M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 21.71% |
| 2 | Healthcare | 15.16% |
| 3 | Consumer Discretionary | 11.81% |
| 4 | Communication Services | 10.53% |
| 5 | Financials | 9.27% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
BBT
701
Beacon Financial Corp
BBT
$2.71B
| $21.1M | 0.03% |
890,798
+271,977
| +44% | +$6.97M |
|
702
Urban Outfitters
URBN
$6.53B
| $21.1M | 0.03% |
295,500
-322,700
| -52% | -$23.7M |
|
703
Booz Allen Hamilton
BAH
$9.43B
| $20.9M | 0.03% |
208,994
-255,000
| -55% | -$27.3M |
|
|
MRC
704
DELISTED
MRC Global
MRC
| $20.9M | 0.03% |
1,448,059
-10,100
| -0.7% | -$144K |
|
705
iRhythm Holdings
IRTC
$4.06B
| $20.9M | 0.03% |
121,400
-19,800
| -14% | -$3.15M |
|
|
COOP
706
DELISTED
Mr. Cooper
COOP
| $20.8M | 0.03% |
+98,699
| New | +$18.2M |
|
707
Brink's
BCO
$4.72B
| $20.6M | 0.03% |
176,632
-16,900
| -9% | -$1.77M |
|
708
Fortune Brands Innovations
FBIN
$5.78B
| $20.6M | 0.03% |
386,500
-11,100
| -3% | -$626K |
|
709
ScottsMiracle-Gro
SMG
$3.59B
| $20.6M | 0.03% |
362,200
+123,600
| +52% | +$7.8M |
|
710
Avantor
AVTR
$9.37B
| $20.6M | 0.03% |
1,651,100
+416,200
| +34% | +$5.36M |
|
711
Sabra Healthcare REIT
SBRA
$5.15B
| $20.6M | 0.03% |
1,103,720
-508,400
| -32% | -$9.5M |
|
712
National Presto Industries
NPK
$987M
| $20.5M | 0.03% |
183,000
-16,200
| -8% | -$1.72M |
|
|
SAND
713
DELISTED
Sandstorm Gold
SAND
| $20.4M | 0.03% |
1,625,700
-1,729,600
| -52% | -$18.4M |
|
714
Avery Dennison
AVY
$13.6B
| $20.4M | 0.03% |
125,500
-51,200
| -29% | -$8.82M |
|
715
Tanger
SKT
$4.42B
| $20.3M | 0.03% |
600,772
-146,000
| -20% | -$4.76M |
|
716
Genius Sports
GENI
$2.2B
| $20.3M | 0.03% |
1,640,700
-76,200
| -4% | -$911K |
|
717
RenaissanceRe
RNR
$13.3B
| $20.3M | 0.03% |
79,882
+19,200
| +32% | +$4.65M |
|
718
Digital Realty Trust
DLR
$73.1B
| $20.3M | 0.03% |
117,183
-4,784
| -4% | -$818K |
|
719
Teva Pharmaceuticals
TEVA
$42.6B
| $20.3M | 0.03% |
1,002,545
-2,154,437
| -68% | -$37.8M |
|
720
Best Buy
BBY
$18B
| $20.3M | 0.03% |
267,800
-249,200
| -48% | -$17.9M |
|
721
Spok Holdings
SPOK
$230M
| $20.2M | 0.03% |
1,172,550
+115,900
| +11% | +$2.06M |
|
|
CSR
722
Centerspace
CSR
$939M
| $20.1M | 0.03% |
341,954
-6,884
| -2% | -$398K |
|
723
Blue Bird Corp
BLBD
$2.05B
| $20.1M | 0.03% |
349,840
+219,904
| +169% | +$11.5M |
|
724
GeoPark
GPRK
$608M
| $20.1M | 0.03% |
3,158,960
+321,800
| +11% | +$2.12M |
|
725
Ambarella
AMBA
$3.6B
| $20M | 0.03% |
242,600
-108,249
| -31% | -$7.86M |
|
Similar funds
Jim Simons's Q3 2025 Portfolio in Review
As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.
- Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
- Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
- Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
- Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
- Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
- Jim Simons opened 516 new positions and closed 581 in Q3 2025.
- Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.
Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.