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 | |
|---|---|---|---|---|---|---|
1401
Forum Energy Technologies
FET
$960M
| $4.2M | 0.01% |
113,600
-67,747
| -37% | -$2.1M |
|
1402
United Natural Foods
UNFI
$2.92B
| $4.19M | 0.01% |
+124,550
| New | +$4.63M |
|
1403
Globe Life
GL
$14.1B
| $4.18M | 0.01% |
29,900
-95,300
| -76% | -$12.9M |
|
1404
Gulfport Energy Corp
GPOR
$3.02B
| $4.18M | 0.01% |
+20,100
| New | +$4.01M |
|
1405
West Bancorporation
WTBA
$508M
| $4.16M | 0.01% |
187,452
-11,300
| -6% | -$244K |
|
1406
Prothena Corp
PRTA
$458M
| $4.16M | 0.01% |
435,515
+64,215
| +17% | +$654K |
|
1407
Inhibrx
INBX
$1.31B
| $4.16M | 0.01% |
52,600
+44,200
| +526% | +$3.01M |
|
1408
Sonida Senior Living
SNDA
$1.92B
| $4.15M | 0.01% |
127,191
+34,600
| +37% | +$1.03M |
|
1409
Mitek Systems
MITK
$866M
| $4.13M | 0.01% |
391,800
+80,562
| +26% | +$761K |
|
1410
Starwood Property Trust
STWD
$6.09B
| $4.12M | 0.01% |
228,784
-197,700
| -46% | -$3.64M |
|
1411
Blackrock
BLK
$182B
| $4.12M | 0.01% |
+3,846
| New | +$4.2M |
|
|
HTO
1412
H2O America
HTO
$2.65B
| $4.12M | 0.01% |
84,000
-32,300
| -28% | -$1.55M |
|
1413
Royal Caribbean
RCL
$82.1B
| $4.11M | 0.01% |
14,749
-294,352
| -95% | -$83.1M |
|
|
ETH
1414
Grayscale Ethereum Staking Mini ETF Shares
ETH
$1.72B
| $4.11M | 0.01% |
+146,470
| New | +$4.78M |
|
1415
Blue Owl Capital
OWL
$19.2B
| $4.11M | 0.01% |
274,800
-1,334,800
| -83% | -$20.9M |
|
1416
iShares Latin America 40 ETF
ILF
$3.7B
| $4.1M | 0.01% |
134,700
+98,200
| +269% | +$2.92M |
|
1417
Fractyl Health
GUTS
$107M
| $4.1M | 0.01% |
1,863,051
+1,086,351
| +140% | +$1.75M |
|
1418
Braze
BRZE
$3.3B
| $4.09M | 0.01% |
+119,400
| New | +$3.54M |
|
1419
Travelzoo
TZOO
$74.6M
| $4.09M | 0.01% |
573,901
-47,300
| -8% | -$383K |
|
1420
Capital Group Dividend Value ETF
CGDV
$38.9B
| $4.08M | 0.01% |
93,500
-37,800
| -29% | -$1.62M |
|
|
LX
1421
LexinFintech Holdings
LX
$222M
| $4.07M | 0.01% |
+1,244,900
| New | +$5.11M |
|
1422
VanEck Merk Gold Trust
OUNZ
$2.72B
| $4.07M | 0.01% |
98,100
-19,500
| -17% | -$779K |
|
1423
First United
FUNC
$296M
| $4.06M | 0.01% |
108,395
-9,200
| -8% | -$342K |
|
1424
JPMorgan Equity Premium Income ETF
JEPI
$46.3B
| $4.04M | 0.01% |
70,600
+43,200
| +158% | +$2.47M |
|
1425
nLIGHT
LASR
$3.02B
| $4.03M | 0.01% |
107,500
-102,400
| -49% | -$3.42M |
|
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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.