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 | |
|---|---|---|---|---|---|---|
1626
British American Tobacco
BTI
$123B
| $3.01M | ﹤0.01% |
53,099
-274,000
| -84% | -$15M |
|
1627
US Global Jets ETF
JETS
$830M
| $3.01M | ﹤0.01% |
+107,100
| New | +$2.78M |
|
|
DDL
1628
Dingdong
DDL
$527M
| $3M | ﹤0.01% |
1,203,800
-411,709
| -25% | -$820K |
|
1629
Allogene Therapeutics
ALLO
$683M
| $3M | ﹤0.01% |
2,187,084
-706,728
| -24% | -$932K |
|
1630
Spero Therapeutics
SPRO
$69.5M
| $2.98M | ﹤0.01% |
1,279,522
-173,243
| -12% | -$402K |
|
1631
Vital Farms
VITL
$470M
| $2.98M | ﹤0.01% |
93,229
-508,225
| -84% | -$17.9M |
|
1632
iShares Russell 3000 ETF
IWV
$20.5B
| $2.97M | ﹤0.01% |
7,680
+1,380
| +22% | +$530K |
|
|
VIA
1633
Via Transportation Inc
VIA
$2.09B
| $2.96M | ﹤0.01% |
+102,200
| New | +$4.22M |
|
1634
Clearfield
CLFD
$396M
| $2.96M | ﹤0.01% |
101,700
+38,126
| +60% | +$1.23M |
|
1635
KRONOS Worldwide
KRO
$963M
| $2.95M | ﹤0.01% |
668,397
-74,691
| -10% | -$363K |
|
1636
Core Laboratories
CLB
$579M
| $2.94M | ﹤0.01% |
183,400
+149,219
| +437% | +$2.22M |
|
1637
Paymentus
PAY
$5.23B
| $2.94M | ﹤0.01% |
+92,997
| New | +$3.03M |
|
1638
South Plains Financial
SPFI
$860M
| $2.94M | ﹤0.01% |
75,700
-1,200
| -2% | -$45.9K |
|
1639
Matrix Service
MTRX
$334M
| $2.93M | ﹤0.01% |
250,600
+6,000
| +2% | +$75.4K |
|
1640
RF Industries
RFIL
$147M
| $2.93M | ﹤0.01% |
506,608
-2,000
| -0.4% | -$13.8K |
|
1641
Lifestance Health
LFST
$4.82B
| $2.93M | ﹤0.01% |
415,900
-61,300
| -13% | -$370K |
|
1642
Trustmark
TRMK
$2.82B
| $2.92M | ﹤0.01% |
74,862
-28,600
| -28% | -$1.11M |
|
1643
Intellicheck
IDN
$56.5M
| $2.91M | ﹤0.01% |
436,365
+43,565
| +11% | +$246K |
|
|
BBBY
1644
Bed Bath & Beyond
BBBY
$417M
| $2.91M | ﹤0.01% |
+533,178
| New | +$3.87M |
|
1645
Macy's
M
$6.26B
| $2.9M | ﹤0.01% |
131,664
-802,400
| -86% | -$16.4M |
|
1646
Latham Group
SWIM
$874M
| $2.9M | ﹤0.01% |
456,400
-7,600
| -2% | -$53.2K |
|
1647
PIMCO Active Bond Exchange-Traded Fund
BOND
$8.49B
| $2.89M | ﹤0.01% |
31,100
+27,200
| +697% | +$2.54M |
|
1648
Corbus Pharmaceuticals
CRBP
$194M
| $2.88M | ﹤0.01% |
354,300
+247,100
| +231% | +$3.05M |
|
|
SRTA
1649
Strata Critical Medical Inc
SRTA
$528M
| $2.88M | ﹤0.01% |
598,786
+400
| +0.1% | +$1.94K |
|
1650
iShares MSCI USA Quality Factor ETF
QUAL
$48.2B
| $2.88M | ﹤0.01% |
14,500
+9,900
| +215% | +$1.95M |
|
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.