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 | |
|---|---|---|---|---|---|---|
|
AAMI
1751
Acadian Asset Management
AAMI
$3.28B
| $3.18M | ﹤0.01% |
66,100
-33,828
| -34% | -$1.51M |
|
1752
Townsquare Media
TSQ
$104M
| $3.18M | ﹤0.01% |
473,652
+800
| +0.2% | +$5.79K |
|
|
WOW
1753
DELISTED
WideOpenWest
WOW
| $3.17M | ﹤0.01% |
613,500
+599,000
| +4,131% | +$2.68M |
|
1754
MasterCraft Boat Holdings
MCFT
$605M
| $3.16M | ﹤0.01% |
147,356
+2,700
| +2% | +$56.4K |
|
1755
Fastly Inc
FSLY
$4.77B
| $3.16M | ﹤0.01% |
369,241
+250,500
| +211% | +$1.85M |
|
1756
Invesco California AMT-Free Municipal Bond ETF
PWZ
$1.17B
| $3.15M | ﹤0.01% |
+131,800
| New | +$3.07M |
|
1757
Pangaea Logistics
PANL
$487M
| $3.15M | ﹤0.01% |
619,735
+25,635
| +4% | +$133K |
|
1758
Ring Energy
REI
$357M
| $3.14M | ﹤0.01% |
2,881,004
+801,625
| +39% | +$726K |
|
1759
Cullinan Oncology
CGEM
$1.31B
| $3.14M | ﹤0.01% |
529,408
+194,883
| +58% | +$1.43M |
|
1760
Park National Corp
PRK
$3.75B
| $3.14M | ﹤0.01% |
+19,305
| New | +$3.26M |
|
1761
Vanguard S&P 500 Growth ETF
VOOG
$27.3B
| $3.14M | ﹤0.01% |
43,200
+16,200
| +60% | +$1.12M |
|
1762
Cabaletta Bio
CABA
$448M
| $3.13M | ﹤0.01% |
1,339,423
+1,213,323
| +962% | +$2.08M |
|
1763
N-able
NABL
$650M
| $3.13M | ﹤0.01% |
401,800
+121,500
| +43% | +$974K |
|
1764
Pinnacle Financial Partners Inc
PNFP
$16.3B
| $3.13M | ﹤0.01% |
33,396
-15,900
| -32% | -$1.59M |
|
1765
RBC Bearings
RBC
$17.7B
| $3.12M | ﹤0.01% |
8,000
-27,800
| -78% | -$10.8M |
|
1766
Capital Group Core Equity ETF
CGUS
$11.8B
| $3.12M | ﹤0.01% |
78,800
+64,900
| +467% | +$2.49M |
|
1767
Primis Financial Corp
FRST
$413M
| $3.11M | ﹤0.01% |
296,270
-14,043
| -5% | -$157K |
|
1768
Ranger Energy Services
RNGR
$407M
| $3.11M | ﹤0.01% |
221,340
-750
| -0.3% | -$9.87K |
|
1769
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$27.4B
| $3.1M | ﹤0.01% |
5,200
+1,500
| +41% | +$880K |
|
1770
White Mountains Insurance
WTM
$5.1B
| $3.09M | ﹤0.01% |
+1,851
| New | +$3.3M |
|
1771
Surf Air Mobility
SRFM
$89.8M
| $3.09M | ﹤0.01% |
+720,211
| New | +$3.37M |
|
1772
City Holding Co
CHCO
$2.07B
| $3.08M | ﹤0.01% |
24,888
+1,100
| +5% | +$138K |
|
1773
Aclaris Therapeutics
ACRS
$851M
| $3.08M | ﹤0.01% |
1,619,731
+154,953
| +11% | +$270K |
|
1774
Walker & Dunlop
WD
$1.46B
| $3.08M | ﹤0.01% |
36,800
-99,500
| -73% | -$8.01M |
|
1775
AMREP Corp
AXR
$119M
| $3.07M | ﹤0.01% |
128,400
+3,000
| +2% | +$68.6K |
|
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.