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 | |
|---|---|---|---|---|---|---|
1001
Dole
DOLE
$1.23B
| $12M | 0.02% |
894,100
-80,200
| -8% | -$1.12M |
|
1002
Zimmer Biomet
ZBH
$18.7B
| $12M | 0.02% |
+121,800
| New | +$12.1M |
|
1003
National Vision
EYE
$1.54B
| $12M | 0.02% |
409,600
-376,300
| -48% | -$9.24M |
|
1004
Texas Capital Bancshares
TCBI
$4.38B
| $11.9M | 0.02% |
141,100
-50,200
| -26% | -$4.29M |
|
1005
Okta
OKTA
$26.9B
| $11.9M | 0.02% |
129,300
-381,318
| -75% | -$35.6M |
|
1006
Phillips 66
PSX
$90B
| $11.8M | 0.02% |
+86,950
| New | +$11.1M |
|
1007
Varonis Systems
VRNS
$5.26B
| $11.8M | 0.02% |
205,700
-17,200
| -8% | -$954K |
|
1008
Revolution Medicines
RVMD
$44B
| $11.8M | 0.02% |
253,104
+9,600
| +4% | +$376K |
|
1009
Daktronics
DAKT
$997M
| $11.8M | 0.02% |
564,413
-30,300
| -5% | -$544K |
|
1010
Vanguard Emerging Markets Government Bond ETF
VWOB
$6.25B
| $11.8M | 0.02% |
176,414
+35,614
| +25% | +$2.35M |
|
1011
NRG Energy
NRG
$25.4B
| $11.8M | 0.02% |
72,800
-497,516
| -87% | -$77.5M |
|
|
LINE
1012
Lineage Inc
LINE
$9.45B
| $11.8M | 0.02% |
304,800
+158,231
| +108% | +$6.58M |
|
1013
Prosperity Bancshares
PB
$8.95B
| $11.8M | 0.02% |
177,472
-36,400
| -17% | -$2.5M |
|
1014
ACM Research
ACMR
$5.65B
| $11.7M | 0.02% |
299,925
+262,925
| +711% | +$7.81M |
|
1015
Fluor
FLR
$6.96B
| $11.7M | 0.02% |
278,200
-197,500
| -42% | -$9.09M |
|
1016
Envista
NVST
$4.61B
| $11.7M | 0.02% |
574,465
+285,065
| +99% | +$5.86M |
|
1017
RCM Technologies
RCMT
$202M
| $11.7M | 0.02% |
439,573
-13,100
| -3% | -$336K |
|
1018
Darden Restaurants
DRI
$25.9B
| $11.7M | 0.02% |
61,300
+30,200
| +97% | +$6.21M |
|
1019
Middlesex Water
MSEX
$1.1B
| $11.6M | 0.02% |
215,013
+12,100
| +6% | +$647K |
|
1020
Lifeway Foods
LWAY
$447M
| $11.6M | 0.02% |
417,771
-18,000
| -4% | -$506K |
|
1021
Ingredion
INGR
$6.54B
| $11.6M | 0.02% |
94,800
-46,700
| -33% | -$6.02M |
|
1022
Gilat Satellite Networks
GILT
$895M
| $11.5M | 0.02% |
886,584
-108,300
| -11% | -$994K |
|
1023
Grupo Cibest SA
CIB
$22.6B
| $11.5M | 0.02% |
221,700
-165,300
| -43% | -$7.98M |
|
1024
Inspire Medical Systems
INSP
$1.68B
| $11.5M | 0.02% |
155,000
+28,200
| +22% | +$2.86M |
|
1025
Algonquin Power & Utilities
AQN
$4.44B
| $11.5M | 0.02% |
2,135,192
-1,815,829
| -46% | -$10.4M |
|
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.