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 | |
|---|---|---|---|---|---|---|
|
ZENV
3201
DELISTED
Zenvia
ZENV
| $144K | ﹤0.01% |
107,401
-10,800
| -9% | -$16K |
|
|
PAL
3202
Proficient Auto Logistics
PAL
$154M
| $143K | ﹤0.01% |
+20,796
| New | +$153K |
|
3203
First Guaranty Bancshares
FGBI
$137M
| $142K | ﹤0.01% |
17,706
-500
| -3% | -$4.18K |
|
|
ARDT
3204
Ardent Health
ARDT
$1.55B
| $142K | ﹤0.01% |
10,700
-59,800
| -85% | -$748K |
|
3205
Anixa Biosciences
ANIX
$109M
| $141K | ﹤0.01% |
42,764
+15,091
| +55% | +$47.7K |
|
|
OMSE
3206
OMS Energy Technologies
OMSE
$184M
| $141K | ﹤0.01% |
+33,135
| New | +$209K |
|
3207
Research Frontiers
REFR
$15.2M
| $140K | ﹤0.01% |
88,100
+1,400
| +2% | +$2.12K |
|
3208
American Shared Hospital Services
AMS
$10.6M
| $139K | ﹤0.01% |
49,800
-16,900
| -25% | -$42.7K |
|
3209
Cellectar Biosciences
CLRB
$19.8M
| $139K | ﹤0.01% |
+24,900
| New | +$123K |
|
3210
BioVie
BIVI
$11.8M
| $139K | ﹤0.01% |
+72,918
| New | +$295K |
|
3211
SurgePays
SURG
$6.2M
| $139K | ﹤0.01% |
49,300
+4,100
| +9% | +$11.6K |
|
|
TOYO
3212
TOYO Co
TOYO
$242M
| $138K | ﹤0.01% |
+24,000
| New | +$117K |
|
|
FPAY
3213
DELISTED
FlexShopper
FPAY
| $137K | ﹤0.01% |
213,980
-9,800
| -4% | -$8.48K |
|
|
BRAG
3214
Bragg Gaming Group
BRAG
$46.2M
| $137K | ﹤0.01% |
45,100
-72,000
| -61% | -$254K |
|
3215
SCYNEXIS
SCYX
$50.9M
| $134K | ﹤0.01% |
21,825
+1,850
| +9% | +$12.5K |
|
3216
Marti Technologies
MRT
$151M
| $134K | ﹤0.01% |
65,656
+1,156
| +2% | +$2.94K |
|
3217
ICZOOM Group
IZM
$3M
| $133K | ﹤0.01% |
55,700
+36,863
| +196% | +$92.2K |
|
|
FORA
3218
DELISTED
Forian
FORA
| $132K | ﹤0.01% |
58,797
+24,597
| +72% | +$50.2K |
|
|
SCPH
3219
DELISTED
scPharmaceuticals
SCPH
| $132K | ﹤0.01% |
+23,216
| New | +$119K |
|
3220
Health Catalyst
HCAT
$132M
| $131K | ﹤0.01% |
+45,869
| New | +$157K |
|
|
VNTG
3221
Vantage Corp
VNTG
$20.8M
| $131K | ﹤0.01% |
+17,900
| New | +$95K |
|
3222
Amprius Technologies
AMPX
$1.74B
| $130K | ﹤0.01% |
12,400
-1,334,200
| -99% | -$10.5M |
|
3223
SES AI
SES
$227M
| $130K | ﹤0.01% |
+78,000
| New | +$93.3K |
|
3224
UNIFI
UFI
$120M
| $130K | ﹤0.01% |
27,300
+300
| +1% | +$1.38K |
|
3225
Cytosorbents Corp
CTSO
$22.8M
| $126K | ﹤0.01% |
134,805
+18,166
| +16% | +$17.9K |
|
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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.