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 | |
|---|---|---|---|---|---|---|
1876
Tucows
TCX
$126M
| $2.72M | ﹤0.01% |
146,351
-2,000
| -1% | -$38.8K |
|
1877
Companhia Siderúrgica Nacional
SID
$1.17B
| $2.71M | ﹤0.01% |
1,806,700
+339,600
| +23% | +$490K |
|
1878
Fuel Tech
FTEK
$45.3M
| $2.7M | ﹤0.01% |
898,906
+46,500
| +5% | +$135K |
|
1879
Bowman Consulting
BWMN
$733M
| $2.69M | ﹤0.01% |
63,600
+29,900
| +89% | +$1.12M |
|
1880
Invesco Galaxy Bitcoin ETF
BTCO
$422M
| $2.69M | ﹤0.01% |
23,600
-4,200
| -15% | -$480K |
|
1881
Vanguard Morningstar Mega Cap ETF
MGC
$10.4B
| $2.68M | ﹤0.01% |
11,000
+8,800
| +400% | +$2.06M |
|
1882
Radcom
RDCM
$176M
| $2.68M | ﹤0.01% |
185,222
+9,489
| +5% | +$129K |
|
1883
Trevi Therapeutics
TRVI
$2.63B
| $2.68M | ﹤0.01% |
293,300
-196,000
| -40% | -$1.47M |
|
|
FPI
1884
Farmland Partners
FPI
$433M
| $2.68M | ﹤0.01% |
246,000
-215,000
| -47% | -$2.35M |
|
1885
Alcoa
AA
$13.2B
| $2.67M | ﹤0.01% |
81,296
-1,562,700
| -95% | -$48.6M |
|
|
SNT
1886
Senstar Technologies
SNT
$42.9M
| $2.67M | ﹤0.01% |
535,169
-100
| -0% | -$448 |
|
|
MCW
1887
DELISTED
Mister Car Wash
MCW
| $2.67M | ﹤0.01% |
500,600
+169,500
| +51% | +$999K |
|
1888
Ponce Financial Group
PDLB
$502M
| $2.66M | ﹤0.01% |
180,835
+35,300
| +24% | +$511K |
|
|
CHCT
1889
Community Healthcare Trust
CHCT
$432M
| $2.65M | ﹤0.01% |
173,500
-14,800
| -8% | -$232K |
|
|
ABX
1890
Abacus Global Management
ABX
$907M
| $2.65M | ﹤0.01% |
461,900
+134,800
| +41% | +$801K |
|
1891
Cabot Corp
CBT
$4.54B
| $2.65M | ﹤0.01% |
+34,800
| New | +$2.71M |
|
1892
Stellantis
STLA
$20.2B
| $2.64M | ﹤0.01% |
286,181
-862,691
| -75% | -$8.25M |
|
1893
RLJ Lodging Trust
RLJ
$1.67B
| $2.64M | ﹤0.01% |
366,832
+24,600
| +7% | +$185K |
|
|
EFXT
1894
Enerflex
EFXT
$2.74B
| $2.64M | ﹤0.01% |
244,800
-1,500
| -0.6% | -$13.9K |
|
1895
Air T
AIRT
$79.2M
| $2.64M | ﹤0.01% |
111,211
-400
| -0.4% | -$9.19K |
|
1896
Fidelity Enhanced Large Cap Core ETF
FELC
$8.41B
| $2.63M | ﹤0.01% |
70,700
+7,600
| +12% | +$271K |
|
1897
Lifestance Health
LFST
$4.75B
| $2.62M | ﹤0.01% |
477,200
-874,900
| -65% | -$4.29M |
|
1898
Clean Harbors
CLH
$17B
| $2.62M | ﹤0.01% |
+11,302
| New | +$2.68M |
|
1899
Evolent Health
EVH
$529M
| $2.62M | ﹤0.01% |
+310,099
| New | +$3.01M |
|
1900
Ovid Therapeutics
OVID
$528M
| $2.62M | ﹤0.01% |
2,018,024
-77,285
| -4% | -$67K |
|
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.