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 | |
|---|---|---|---|---|---|---|
901
BK Technologies
BKTI
$292M
| $10.4M | 0.02% |
138,965
-16,757
| -11% | -$1.2M |
|
902
Center Bancorp
CNOB
$1.81B
| $10.3M | 0.02% |
393,578
-4,568
| -1% | -$116K |
|
903
InterDigital
IDCC
$9.07B
| $10.3M | 0.02% |
32,298
-33,302
| -51% | -$11.8M |
|
904
FMC
FMC
$1.28B
| $10.3M | 0.02% |
741,200
+525,700
| +244% | +$10M |
|
905
State Street Energy Select Sector SPDR ETF
XLE
$39.9B
| $10.3M | 0.02% |
229,738
-729,400
| -76% | -$32.5M |
|
906
American Electric Power
AEP
$67.9B
| $10.3M | 0.02% |
89,000
-697,900
| -89% | -$82.4M |
|
907
Taboola.com
TBLA
$1.05B
| $10.2M | 0.02% |
2,220,400
-334,200
| -13% | -$1.26M |
|
908
Bank of Hawaii
BOH
$3.13B
| $10.2M | 0.02% |
149,100
-57,100
| -28% | -$3.76M |
|
|
LKFT
909
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.83B
| $10.2M | 0.02% |
310,600
-45,600
| -13% | -$1.47M |
|
910
Enanta Pharmaceuticals
ENTA
$393M
| $10.1M | 0.02% |
642,200
+162,600
| +34% | +$2.07M |
|
911
Bumble
BMBL
$344M
| $10.1M | 0.02% |
2,835,400
+251,114
| +10% | +$1.11M |
|
912
Archrock
AROC
$5.84B
| $10.1M | 0.02% |
387,828
+53,200
| +16% | +$1.32M |
|
913
Core Molding Technologies
CMT
$224M
| $10.1M | 0.02% |
503,285
-7,962
| -2% | -$152K |
|
|
FRGE
914
DELISTED
Forge Global Holdings
FRGE
| $10.1M | 0.02% |
226,079
+167,700
| +287% | +$5.67M |
|
915
Kodiak Sciences
KOD
$2.72B
| $10.1M | 0.02% |
359,800
-101,500
| -22% | -$2.08M |
|
916
First Hawaiian
FHB
$3.36B
| $9.98M | 0.02% |
394,500
+224,000
| +131% | +$5.57M |
|
917
MannKind Corp
MNKD
$1.24B
| $9.96M | 0.02% |
1,757,487
+906,690
| +107% | +$4.99M |
|
918
Bausch Health
BHC
$2.32B
| $9.95M | 0.02% |
1,432,191
+247,519
| +21% | +$1.63M |
|
919
O-I Glass
OI
$1.04B
| $9.93M | 0.02% |
673,100
-112,900
| -14% | -$1.49M |
|
920
Limbach Holdings
LMB
$536M
| $9.91M | 0.02% |
127,271
-68,700
| -35% | -$5.65M |
|
921
China Yuchai International
CYD
$1.76B
| $9.89M | 0.02% |
278,494
+9,287
| +3% | +$339K |
|
922
BorgWarner
BWA
$14B
| $9.84M | 0.02% |
218,398
+27,000
| +14% | +$1.18M |
|
923
Lennox International
LII
$14.5B
| $9.82M | 0.02% |
20,220
-28,180
| -58% | -$14.1M |
|
924
First Busey Corp
BUSE
$2.58B
| $9.81M | 0.02% |
412,200
-175,346
| -30% | -$4.12M |
|
925
Vera Therapeutics
VERA
$2.16B
| $9.79M | 0.02% |
+193,400
| New | +$6.87M |
|
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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.