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 | |
|---|---|---|---|---|---|---|
1701
Dolby
DLB
$5.84B
| $3.47M | ﹤0.01% |
47,900
-22,700
| -32% | -$1.67M |
|
1702
Corebridge Financial
CRBG
$15.4B
| $3.45M | ﹤0.01% |
+107,800
| New | +$3.68M |
|
1703
Entrada Therapeutics
TRDA
$290M
| $3.45M | ﹤0.01% |
594,300
+214,800
| +57% | +$1.26M |
|
1704
El Pollo Loco
LOCO
$473M
| $3.44M | ﹤0.01% |
355,000
-8,000
| -2% | -$83.9K |
|
1705
J&J Snack Foods
JJSF
$1.67B
| $3.43M | ﹤0.01% |
35,706
-6,850
| -16% | -$759K |
|
1706
BJ's Restaurants
BJRI
$1.45B
| $3.43M | ﹤0.01% |
112,329
-162,100
| -59% | -$5.78M |
|
1707
iShares MSCI Brazil ETF
EWZ
$8.59B
| $3.43M | ﹤0.01% |
110,500
+54,600
| +98% | +$1.56M |
|
1708
Q2 Holdings
QTWO
$4.04B
| $3.42M | ﹤0.01% |
47,300
-30,000
| -39% | -$2.46M |
|
|
FIRY
1709
Firy Inc
FIRY
$148M
| $3.42M | ﹤0.01% |
427,025
+8,800
| +2% | +$67.6K |
|
1710
Cohen & Steers
CNS
$4.36B
| $3.41M | ﹤0.01% |
52,012
-41,100
| -44% | -$3.01M |
|
1711
Harmonic Inc
HLIT
$1.51B
| $3.41M | ﹤0.01% |
334,786
-168,786
| -34% | -$1.59M |
|
1712
Similarweb
SMWB
$779M
| $3.38M | ﹤0.01% |
363,973
+8,400
| +2% | +$75.2K |
|
1713
East-West Bancorp
EWBC
$18.7B
| $3.38M | ﹤0.01% |
31,733
-44,000
| -58% | -$4.63M |
|
1714
Kforce
KFRC
$1.04B
| $3.38M | ﹤0.01% |
112,649
+27,800
| +33% | +$985K |
|
1715
Flexible Solutions
FSI
$64.2M
| $3.38M | ﹤0.01% |
350,245
-36,197
| -9% | -$274K |
|
1716
Mama's Creations
MAMA
$802M
| $3.37M | ﹤0.01% |
321,100
+19,900
| +7% | +$180K |
|
1717
Fox Factory Holding Corp
FOXF
$883M
| $3.37M | ﹤0.01% |
138,893
-20,800
| -13% | -$586K |
|
1718
Integer Holdings
ITGR
$4.26B
| $3.36M | ﹤0.01% |
+32,500
| New | +$3.54M |
|
1719
QuinStreet
QNST
$1.18B
| $3.35M | ﹤0.01% |
216,700
+90,800
| +72% | +$1.44M |
|
1720
iShares ESG Aware MSCI USA ETF
ESGU
$18.4B
| $3.35M | ﹤0.01% |
23,000
+10,800
| +89% | +$1.51M |
|
1721
Cogent Biosciences
COGT
$6.58B
| $3.35M | ﹤0.01% |
+232,968
| New | +$2.76M |
|
|
DDL
1722
Dingdong
DDL
$523M
| $3.34M | ﹤0.01% |
1,615,509
+333,809
| +26% | +$723K |
|
|
CIO
1723
DELISTED
City Office REIT
CIO
| $3.34M | ﹤0.01% |
480,115
-702,300
| -59% | -$4.63M |
|
|
YALA
1724
Yalla Group
YALA
$832M
| $3.34M | ﹤0.01% |
444,200
-1,400
| -0.3% | -$10.8K |
|
|
IAUX
1725
i-80 Gold Corp
IAUX
$1.45B
| $3.33M | ﹤0.01% |
3,486,758
-5,236,273
| -60% | -$3.81M |
|
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.