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 |
Costco
COST
|
+$616M |
| 2 |
Netflix
NFLX
|
+$481M |
| 3 |
Micron Technology
MU
|
+$416M |
| 4 |
Tesla
TSLA
|
+$416M |
| 5 |
Procter & Gamble
PG
|
+$322M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$885M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$660M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$463M |
| 4 |
Applovin
APP
|
+$430M |
| 5 |
Meta Platforms (Facebook)
META
|
+$354M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 20.84% |
| 2 | Healthcare | 15.77% |
| 3 | Consumer Discretionary | 13.88% |
| 4 | Industrials | 9.94% |
| 5 | Financials | 8.79% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1951
Omega Flex
OFLX
$304M
| $1.74M | ﹤0.01% |
59,080
-900
| -2% | -$25.7K |
|
1952
Rackspace Technology
RXT
$1.1B
| $1.74M | ﹤0.01% |
1,790,900
-4,800
| -0.3% | -$6.04K |
|
|
CCRN
1953
DELISTED
Cross Country Healthcare
CCRN
| $1.74M | ﹤0.01% |
214,600
+11,600
| +6% | +$127K |
|
1954
China Automotive Systems
CAAS
$142M
| $1.74M | ﹤0.01% |
407,994
-31,193
| -7% | -$133K |
|
1955
BayCom
BCML
$341M
| $1.74M | ﹤0.01% |
59,102
+202
| +0.3% | +$5.83K |
|
1956
Alto Neuroscience
ANRO
$1.26B
| $1.73M | ﹤0.01% |
97,399
+21,627
| +29% | +$272K |
|
1957
Kroger
KR
$35.1B
| $1.73M | ﹤0.01% |
27,700
-500,216
| -95% | -$32.7M |
|
|
ASRT
1958
DELISTED
Assertio
ASRT
| $1.73M | ﹤0.01% |
190,697
-5,455
| -3% | -$63.7K |
|
1959
XPEL
XPEL
$1.35B
| $1.73M | ﹤0.01% |
34,600
+2,586
| +8% | +$108K |
|
|
GLIBK
1960
Liberty Capital Corp Series C GCI Group Common Stock
GLIBK
$1.07B
| $1.73M | ﹤0.01% |
46,400
-99
| -0.2% | -$3.47K |
|
1961
First Trust Morningstar Dividend Leaders Index Fund
FDL
$7.98B
| $1.72M | ﹤0.01% |
38,900
+700
| +2% | +$30.5K |
|
1962
Zedge
ZDGE
$38.6M
| $1.72M | ﹤0.01% |
523,219
-86,103
| -14% | -$249K |
|
1963
Wabash National
WNC
$507M
| $1.71M | ﹤0.01% |
198,265
-24,235
| -11% | -$211K |
|
1964
Global Water Resources
GWRS
$219M
| $1.71M | ﹤0.01% |
202,947
-21,200
| -9% | -$199K |
|
1965
Radian Group
RDN
$4.87B
| $1.71M | ﹤0.01% |
47,600
+37,400
| +367% | +$1.31M |
|
1966
Colony Bankcorp
CBAN
$467M
| $1.71M | ﹤0.01% |
95,878
-13,200
| -12% | -$224K |
|
1967
Maui Land & Pineapple Co
MLP
$310M
| $1.71M | ﹤0.01% |
100,849
-4,800
| -5% | -$77.4K |
|
|
AGEN
1968
Agenus
AGEN
$315M
| $1.71M | ﹤0.01% |
543,546
+477,346
| +721% | +$1.9M |
|
1969
National Fuel Gas
NFG
$7.77B
| $1.71M | ﹤0.01% |
21,300
-130,100
| -86% | -$10.7M |
|
1970
Blink Charging
BLNK
$85.6M
| $1.7M | ﹤0.01% |
2,553,484
+1,773,109
| +227% | +$2.56M |
|
|
MTLS
1971
Materialise
MTLS
$393M
| $1.7M | ﹤0.01% |
306,400
-7,400
| -2% | -$43.8K |
|
1972
iShares MSCI Germany ETF
EWG
$1.67B
| $1.7M | ﹤0.01% |
+40,000
| New | +$1.66M |
|
1973
Old Second Bancorp
OSBC
$1.31B
| $1.68M | ﹤0.01% |
86,325
+37,200
| +76% | +$695K |
|
1974
Vanguard Russell 2000 ETF
VTWO
$17.5B
| $1.68M | ﹤0.01% |
16,900
+2,600
| +18% | +$258K |
|
1975
Home BancShares
HOMB
$6.23B
| $1.68M | ﹤0.01% |
+60,339
| New | +$1.67M |
|
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Jim Simons's Q4 2025 Portfolio in Review
As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.
By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.
- Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
- Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
- Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
- Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
- Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
- Jim Simons opened 466 new positions and closed 737 in Q4 2025.
- Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.
Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.