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 | |
|---|---|---|---|---|---|---|
801
Huntsman Corp
HUN
$1.81B
| $12.7M | 0.02% |
1,271,800
-91,400
| -7% | -$837K |
|
802
KNOT Offshore Partners
KNOP
$366M
| $12.7M | 0.02% |
1,227,035
+32,369
| +3% | +$314K |
|
|
SOHU
803
Sohu.com
SOHU
$364M
| $12.7M | 0.02% |
811,345
-44,328
| -5% | -$666K |
|
804
Puma Biotechnology
PBYI
$450M
| $12.6M | 0.02% |
2,123,813
-27,400
| -1% | -$146K |
|
805
Trimble
TRMB
$13.4B
| $12.6M | 0.02% |
+161,044
| New | +$12.8M |
|
806
Texas Pacific Land
TPL
$23.9B
| $12.6M | 0.02% |
43,820
-91,192
| -68% | -$27.9M |
|
807
AMC Entertainment Holdings
AMC
$2.35B
| $12.5M | 0.02% |
8,009,819
+1,369,000
| +21% | +$3.26M |
|
808
Associated Banc-Corp
ASB
$6.07B
| $12.5M | 0.02% |
484,631
+225,600
| +87% | +$5.8M |
|
809
iShares MSCI China ETF
MCHI
$6.14B
| $12.5M | 0.02% |
+207,500
| New | +$13.1M |
|
810
Coeur Mining
CDE
$19B
| $12.4M | 0.02% |
+694,289
| New | +$12.1M |
|
811
Weis Markets
WMK
$1.77B
| $12.4M | 0.02% |
193,036
-41,700
| -18% | -$2.78M |
|
812
Strategic Education
STRA
$1.86B
| $12.3M | 0.02% |
153,818
-41,700
| -21% | -$3.33M |
|
813
Adeia
ADEA
$3.16B
| $12.3M | 0.02% |
715,043
-105,300
| -13% | -$1.56M |
|
814
Tenable Holdings
TENB
$4.41B
| $12.3M | 0.02% |
523,300
+278,100
| +113% | +$7.6M |
|
815
Enel Chile
ENIC
$6.1B
| $12.3M | 0.02% |
3,062,688
+160,300
| +6% | +$618K |
|
|
NFBK
816
DELISTED
Northfield Bancorp
NFBK
| $12.3M | 0.02% |
1,075,149
-63,500
| -6% | -$704K |
|
817
Centrus Energy
LEU
$3.83B
| $12.3M | 0.02% |
+50,582
| New | +$15.3M |
|
818
Embotelladora Andina Series B
AKO.B
$4.87B
| $12.3M | 0.02% |
439,881
-7,500
| -2% | -$195K |
|
819
Autodesk
ADSK
$54.5B
| $12.2M | 0.02% |
41,328
-169,240
| -80% | -$51.2M |
|
820
Federal Signal
FSS
$7.51B
| $12.2M | 0.02% |
112,604
+33,104
| +42% | +$3.79M |
|
821
Chord Energy
CHRD
$7.35B
| $12.2M | 0.02% |
131,852
-199,264
| -60% | -$18.5M |
|
822
Conagra Brands
CAG
$7.39B
| $12.2M | 0.02% |
704,881
-3,918,800
| -85% | -$69.6M |
|
823
American Healthcare REIT
AHR
$10.3B
| $12.2M | 0.02% |
259,131
-467,800
| -64% | -$21.7M |
|
824
Privia Health
PRVA
$2.78B
| $12.2M | 0.02% |
514,000
-62,300
| -11% | -$1.52M |
|
825
CarGurus
CARG
$3.38B
| $12.2M | 0.02% |
317,427
-176,400
| -36% | -$6.36M |
|
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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.