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 | |
|---|---|---|---|---|---|---|
1076
Saia
SAIA
$10.1B
| $7.36M | 0.01% |
22,538
-5,560
| -20% | -$1.68M |
|
1077
WesBanco
WSBC
$4.1B
| $7.33M | 0.01% |
220,481
-202,666
| -48% | -$6.55M |
|
1078
Power Integrations
POWI
$3.57B
| $7.32M | 0.01% |
206,100
-14,300
| -6% | -$542K |
|
1079
Ally Financial
ALLY
$13.6B
| $7.31M | 0.01% |
161,500
-469,200
| -74% | -$19.3M |
|
1080
Savers
SVV
$1.67B
| $7.31M | 0.01% |
782,701
+226,079
| +41% | +$2.32M |
|
1081
Nektar Therapeutics
NKTR
$2.57B
| $7.31M | 0.01% |
172,881
-105,660
| -38% | -$5.91M |
|
|
GRAL
1082
GRAIL Inc
GRAL
$3.08B
| $7.3M | 0.01% |
85,300
-17,800
| -17% | -$1.54M |
|
1083
Target Hospitality
TH
$1.62B
| $7.29M | 0.01% |
910,424
-70,700
| -7% | -$537K |
|
1084
Ternium
TX
$10.8B
| $7.25M | 0.01% |
189,800
-29,900
| -14% | -$1.1M |
|
1085
ZipRecruiter
ZIP
$405M
| $7.25M | 0.01% |
1,858,000
+47,600
| +3% | +$214K |
|
1086
Encompass Health
EHC
$12.3B
| $7.24M | 0.01% |
68,200
-2,800
| -4% | -$325K |
|
1087
Employers Holdings
EIG
$864M
| $7.21M | 0.01% |
167,000
-141,100
| -46% | -$5.75M |
|
1088
Genie Energy
GNE
$380M
| $7.21M | 0.01% |
522,885
-40,800
| -7% | -$600K |
|
1089
Pacific Biosciences
PACB
$357M
| $7.2M | 0.01% |
+3,850,600
| New | +$7.4M |
|
1090
STRATTEC Security
STRT
$338M
| $7.2M | 0.01% |
94,506
-4,400
| -4% | -$315K |
|
|
PSKY
1091
Paramount Skydance Corp
PSKY
$11.2B
| $7.18M | 0.01% |
+535,800
| New | +$8.37M |
|
1092
International Seaways
INSW
$4.71B
| $7.16M | 0.01% |
147,513
-149,387
| -50% | -$7.39M |
|
1093
Northeast Bank
NBN
$1.16B
| $7.14M | 0.01% |
68,745
-40,900
| -37% | -$3.82M |
|
1094
Liquidia Corp
LQDA
$6.45B
| $7.13M | 0.01% |
206,853
-277,900
| -57% | -$7.91M |
|
1095
Emergent Biosolutions
EBS
$233M
| $7.13M | 0.01% |
577,147
+58,900
| +11% | +$631K |
|
|
ALX
1096
Alexander's
ALX
$1.39B
| $7.13M | 0.01% |
32,726
-15,600
| -32% | -$3.48M |
|
1097
Andersons Inc
ANDE
$2.21B
| $7.12M | 0.01% |
133,900
-149,476
| -53% | -$7.31M |
|
|
BFS
1098
Saul Centers
BFS
$850M
| $7.11M | 0.01% |
225,641
-56,013
| -20% | -$1.72M |
|
1099
Hope Bancorp
HOPE
$1.83B
| $7.11M | 0.01% |
648,798
-23,230
| -3% | -$250K |
|
1100
Talos Energy
TALO
$2.58B
| $7.1M | 0.01% |
644,600
+344,900
| +115% | +$3.61M |
|
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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.