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 | |
|---|---|---|---|---|---|---|
|
FIGR
1876
Figure Technology Solutions
FIGR
$7.05B
| $1.98M | ﹤0.01% |
+48,400
| New | +$1.94M |
|
1877
KVH Industries
KVHI
$142M
| $1.97M | ﹤0.01% |
283,108
+18,193
| +7% | +$110K |
|
1878
Lightwave Logic
LWLG
$1.12B
| $1.97M | ﹤0.01% |
607,632
+587,025
| +2,849% | +$2.61M |
|
1879
Franklin Covey
FC
$234M
| $1.97M | ﹤0.01% |
117,203
-15,100
| -11% | -$253K |
|
1880
Tigo Energy
TYGO
$96.7M
| $1.97M | ﹤0.01% |
1,425,040
+449,140
| +46% | +$900K |
|
1881
Clean Energy Fuels
CLNE
$384M
| $1.96M | ﹤0.01% |
935,395
+73,295
| +9% | +$179K |
|
|
TMHC
1882
DELISTED
Taylor Morrison
TMHC
| $1.96M | ﹤0.01% |
+33,353
| New | +$2.04M |
|
1883
ARK Genomic Revolution ETF
ARKG
$1.78B
| $1.96M | ﹤0.01% |
67,700
-15,600
| -19% | -$468K |
|
1884
AXIS Capital
AXS
$7.26B
| $1.96M | ﹤0.01% |
+18,300
| New | +$1.82M |
|
1885
MaxLinear
MXL
$6.95B
| $1.95M | ﹤0.01% |
+112,113
| New | +$1.83M |
|
1886
Twin Disc
TWIN
$355M
| $1.95M | ﹤0.01% |
116,693
-38,300
| -25% | -$593K |
|
1887
Greif Class B
GEF.B
$4.24B
| $1.94M | ﹤0.01% |
26,000
-500
| -2% | -$33.2K |
|
1888
Energy Vault
NRGV
$669M
| $1.94M | ﹤0.01% |
+420,800
| New | +$1.61M |
|
1889
Groupon
GRPN
$901M
| $1.93M | ﹤0.01% |
109,813
-532,600
| -83% | -$10M |
|
|
ZEUS
1890
DELISTED
Olympic Steel
ZEUS
| $1.93M | ﹤0.01% |
45,198
+5,400
| +14% | +$193K |
|
1891
Gibraltar Industries
ROCK
$1.46B
| $1.93M | ﹤0.01% |
39,100
-65,500
| -63% | -$3.75M |
|
1892
USCB Financial Holdings
USCB
$415M
| $1.93M | ﹤0.01% |
104,600
+2,234
| +2% | +$39.9K |
|
1893
Seer Inc
SEER
$118M
| $1.92M | ﹤0.01% |
1,051,400
-58,900
| -5% | -$120K |
|
1894
Cogent Communications
CCOI
$525M
| $1.92M | ﹤0.01% |
89,031
-98,956
| -53% | -$2.92M |
|
1895
Columbus McKinnon
CMCO
$550M
| $1.92M | ﹤0.01% |
111,085
-24,800
| -18% | -$398K |
|
1896
Security National Financial
SNFCA
$242M
| $1.91M | ﹤0.01% |
222,222
-43,729
| -16% | -$353K |
|
1897
Digi International
DGII
$3.23B
| $1.91M | ﹤0.01% |
44,044
-62,140
| -59% | -$2.49M |
|
|
GRP.U
1898
DELISTED
Granite Real Estate Investment Trust
GRP.U
| $1.91M | ﹤0.01% |
32,200
-10,400
| -24% | -$583K |
|
1899
Alerian MLP ETF
AMLP
$13.1B
| $1.9M | ﹤0.01% |
40,400
-61,700
| -60% | -$2.89M |
|
1900
Lindsay Corp
LNN
$1.18B
| $1.9M | ﹤0.01% |
16,100
-47,824
| -75% | -$5.76M |
|
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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.