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 | |
|---|---|---|---|---|---|---|
|
HEPS
2976
D-Market Electronic Services & Trading
HEPS
$1.01B
| $318K | ﹤0.01% |
118,188
-137,512
| -54% | -$382K |
|
2977
MarketWise
MKTW
$55.5M
| $314K | ﹤0.01% |
18,999
+500
| +3% | +$9.17K |
|
|
CISO
2978
CISO Global
CISO
$12.2M
| $312K | ﹤0.01% |
+297,500
| New | +$314K |
|
|
AXIA.PR
2979
DELISTED
AXIA Energia American Depositary Shares Preferred Class B1
AXIA.PR
| $312K | ﹤0.01% |
38,011
-4,042
| -10% | -$27.3K |
|
2980
Context Therapeutics
CNTX
$46.5M
| $310K | ﹤0.01% |
320,127
-43,803
| -12% | -$35.5K |
|
|
SMC
2981
Summit Midstream
SMC
$477M
| $308K | ﹤0.01% |
+15,000
| New | +$348K |
|
2982
Inuvo
INUV
$14.2M
| $307K | ﹤0.01% |
87,541
-30,376
| -26% | -$131K |
|
2983
Mammoth Energy Services
TUSK
$158M
| $307K | ﹤0.01% |
133,972
+1,800
| +1% | +$4.43K |
|
2984
Magnachip Semiconductor
MX
$137M
| $306K | ﹤0.01% |
+97,900
| New | +$332K |
|
2985
Lisata Therapeutics
LSTA
$10.6M
| $306K | ﹤0.01% |
116,622
+13,800
| +13% | +$34.6K |
|
2986
Compass Minerals
CMP
$1.12B
| $305K | ﹤0.01% |
+15,900
| New | +$316K |
|
|
IMA
2987
ImageneBio Inc
IMA
$68M
| $305K | ﹤0.01% |
37,378
+11,640
| +45% | +$154K |
|
2988
Alto Neuroscience
ANRO
$1.26B
| $305K | ﹤0.01% |
75,772
+41,072
| +118% | +$136K |
|
2989
Broadwind
BWEN
$129M
| $305K | ﹤0.01% |
145,000
+79,600
| +122% | +$178K |
|
|
NXDT
2990
NexPoint Diversified Real Estate Trust
NXDT
$250M
| $304K | ﹤0.01% |
+82,435
| New | +$351K |
|
2991
Guardforce AI
GFAI
$10.9M
| $303K | ﹤0.01% |
275,900
+70,200
| +34% | +$82.8K |
|
|
MURA
2992
DELISTED
Mural Oncology
MURA
| $302K | ﹤0.01% |
146,000
+134,200
| +1,137% | +$288K |
|
2993
ALX Oncology
ALXO
$278M
| $301K | ﹤0.01% |
164,499
+79,100
| +93% | +$68.5K |
|
2994
NanoViricides
NNVC
$34.9M
| $301K | ﹤0.01% |
210,500
+99,100
| +89% | +$148K |
|
2995
Catalyst Bancorp
CLST
$69.6M
| $301K | ﹤0.01% |
22,800
+600
| +3% | +$7.61K |
|
2996
PROG Holdings
PRG
$1.64B
| $300K | ﹤0.01% |
9,284
-112,000
| -92% | -$3.67M |
|
2997
iShares US Home Construction ETF
ITB
$2.37B
| $300K | ﹤0.01% |
+2,800
| New | +$295K |
|
2998
Silgan Holdings
SLGN
$4.3B
| $300K | ﹤0.01% |
6,980
-52,600
| -88% | -$2.54M |
|
|
SVC
2999
Service Properties Trust
SVC
$1.06B
| $299K | ﹤0.01% |
22,080
-17,520
| -44% | -$237K |
|
|
CODX
3000
Co-Diagnostics
CODX
$5.49M
| $298K | ﹤0.01% |
28,917
+10,216
| +55% | +$95K |
|
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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.