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 | |
|---|---|---|---|---|---|---|
1976
Vanguard Morningstar Mid-Cap Growth ETF
VOT
$20.3B
| $1.67M | ﹤0.01% |
6,000
-1,300
| -18% | -$372K |
|
1977
Kyverna Therapeutics
KYTX
$500M
| $1.67M | ﹤0.01% |
177,899
+13,285
| +8% | +$98.6K |
|
1978
Transact Technologies
TACT
$54.6M
| $1.67M | ﹤0.01% |
417,437
+18,122
| +5% | +$82K |
|
1979
Schwab 1000 Index ETF
SCHK
$5.98B
| $1.67M | ﹤0.01% |
50,800
-60,800
| -54% | -$1.98M |
|
1980
Sypris Solutions
SYPR
$46.8M
| $1.66M | ﹤0.01% |
679,221
-13,431
| -2% | -$29.1K |
|
1981
Direxion Daily TSLA Bull 2X ETF
TSLL
$3.49B
| $1.65M | ﹤0.01% |
+86,600
| New | +$1.72M |
|
|
BRCB
1982
Black Rock Coffee Bar Inc
BRCB
$183M
| $1.65M | ﹤0.01% |
+74,304
| New | +$1.72M |
|
1983
Valhi
VHI
$463M
| $1.65M | ﹤0.01% |
136,917
-5,600
| -4% | -$74.7K |
|
|
NIU
1984
Niu Technologies
NIU
$162M
| $1.65M | ﹤0.01% |
544,400
+250,800
| +85% | +$971K |
|
1985
American Outdoor Brands
AOUT
$159M
| $1.65M | ﹤0.01% |
213,168
-18,000
| -8% | -$133K |
|
1986
Innoviz Technologies
INVZ
$114M
| $1.65M | ﹤0.01% |
+1,928,653
| New | +$3.05M |
|
1987
Kodak
KODK
$992M
| $1.64M | ﹤0.01% |
+194,345
| New | +$1.45M |
|
|
WSR
1988
DELISTED
Whitestone REIT
WSR
| $1.64M | ﹤0.01% |
118,300
+40,500
| +52% | +$522K |
|
1989
ClearPoint Neuro
CLPT
$463M
| $1.64M | ﹤0.01% |
+120,000
| New | +$2.22M |
|
1990
Cato Corp
CATO
$65.7M
| $1.64M | ﹤0.01% |
530,600
-17,102
| -3% | -$62.9K |
|
1991
F&G Annuities & Life
FG
$3.48B
| $1.64M | ﹤0.01% |
53,000
-19,600
| -27% | -$613K |
|
|
GBIO
1992
DELISTED
Generation Bio
GBIO
| $1.63M | ﹤0.01% |
287,614
-56,649
| -16% | -$320K |
|
1993
Agilon Health
AGL
$1.45B
| $1.63M | ﹤0.01% |
94,841
+36,457
| +62% | +$707K |
|
1994
Murphy Oil
MUR
$5.06B
| $1.63M | ﹤0.01% |
52,237
+7,637
| +17% | +$230K |
|
1995
Enovix
ENVX
$966M
| $1.63M | ﹤0.01% |
223,149
+110,300
| +98% | +$1.07M |
|
|
PTRN
1996
Pattern Group Inc
PTRN
$3.98B
| $1.63M | ﹤0.01% |
+140,851
| New | +$2.05M |
|
1997
Telesat
TSAT
$934M
| $1.62M | ﹤0.01% |
55,800
-5,846
| -9% | -$170K |
|
1998
The Honest Company
HNST
$544M
| $1.62M | ﹤0.01% |
628,600
-1,496,500
| -70% | -$4.59M |
|
1999
Valens Semiconductor
VLN
$210M
| $1.62M | ﹤0.01% |
1,141,256
-39,259
| -3% | -$64.7K |
|
2000
Oppenheimer Holdings
OPY
$1.23B
| $1.62M | ﹤0.01% |
22,400
-11,400
| -34% | -$794K |
|
Similar funds
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.