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 | |
|---|---|---|---|---|---|---|
1926
iShares Expanded Tech Sector ETF
IGM
$10.9B
| $1.81M | ﹤0.01% |
14,000
-2,400
| -15% | -$311K |
|
1927
Quince Therapeutics
QNCX
$31.8M
| $1.8M | ﹤0.01% |
2,691
+348
| +15% | +$175K |
|
1928
HUTCHMED
HCM
$2.13B
| $1.8M | ﹤0.01% |
134,900
+3,900
| +3% | +$57K |
|
1929
Natural Health Trends
NHTC
$15.4M
| $1.8M | ﹤0.01% |
581,415
-29,900
| -5% | -$108K |
|
1930
Landmark Bancorp
LARK
$197M
| $1.79M | ﹤0.01% |
68,453
-3,424
| -5% | -$89.7K |
|
1931
RXO
RXO
$3.85B
| $1.79M | ﹤0.01% |
141,800
-12,300
| -8% | -$181K |
|
1932
Fuel Tech
FTEK
$45.9M
| $1.79M | ﹤0.01% |
1,147,995
+249,089
| +28% | +$548K |
|
|
FIRY
1933
Firy Inc
FIRY
$156M
| $1.78M | ﹤0.01% |
413,625
-13,400
| -3% | -$82.8K |
|
1934
Miller Industries
MLR
$643M
| $1.78M | ﹤0.01% |
47,686
+24,886
| +109% | +$969K |
|
1935
iShares Gold Trust
IAU
$64.5B
| $1.78M | ﹤0.01% |
21,900
-89,500
| -80% | -$7M |
|
1936
Iovance Biotherapeutics
IOVA
$3.05B
| $1.78M | ﹤0.01% |
+651,000
| New | +$1.51M |
|
1937
Hurco Companies Inc
HURC
$144M
| $1.77M | ﹤0.01% |
114,800
+27,900
| +32% | +$462K |
|
1938
MoonLake Immunotherapeutics
MLTX
$1.47B
| $1.77M | ﹤0.01% |
+134,472
| New | +$1.59M |
|
1939
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$23.5B
| $1.77M | ﹤0.01% |
+14,836
| New | +$1.76M |
|
1940
Equity Bancshares
EQBK
$1.06B
| $1.77M | ﹤0.01% |
39,600
-20,800
| -34% | -$890K |
|
1941
3D Systems Corp
DDD
$603M
| $1.77M | ﹤0.01% |
997,907
-494,298
| -33% | -$1.2M |
|
1942
Rocky Brands
RCKY
$353M
| $1.76M | ﹤0.01% |
60,035
+14,400
| +32% | +$424K |
|
1943
Ingredion
INGR
$6.54B
| $1.75M | ﹤0.01% |
15,900
-78,900
| -83% | -$8.9M |
|
1944
BellRing Brands
BRBR
$1.26B
| $1.75M | ﹤0.01% |
+65,580
| New | +$2.04M |
|
|
SNCY
1945
DELISTED
Sun Country Airlines
SNCY
| $1.75M | ﹤0.01% |
121,800
-75,400
| -38% | -$964K |
|
1946
Dorian LPG
LPG
$1.91B
| $1.75M | ﹤0.01% |
72,000
-44,700
| -38% | -$1.17M |
|
1947
ReNew
RNW
$2.48B
| $1.75M | ﹤0.01% |
310,000
-478,100
| -61% | -$3.46M |
|
1948
Gevo
GEVO
$391M
| $1.75M | ﹤0.01% |
+872,794
| New | +$1.92M |
|
1949
JELD-WEN Holding
JELD
$164M
| $1.74M | ﹤0.01% |
707,152
-159,748
| -18% | -$525K |
|
1950
Finward Bancorp
FNWD
$195M
| $1.74M | ﹤0.01% |
49,434
+358
| +0.7% | +$12.6K |
|
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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.