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 | |
|---|---|---|---|---|---|---|
|
AIOT
2601
PowerFleet Inc
AIOT
$419M
| $467K | ﹤0.01% |
87,736
-36,460
| -29% | -$187K |
|
|
DDI
2602
DoubleDown Interactive
DDI
$611M
| $466K | ﹤0.01% |
54,000
-3,716
| -6% | -$33.3K |
|
2603
Gaia
GAIA
$33.1M
| $466K | ﹤0.01% |
128,261
-9,439
| -7% | -$43.2K |
|
2604
Live Ventures
LIVE
$30.8M
| $463K | ﹤0.01% |
31,299
-1,200
| -4% | -$17K |
|
2605
iShares MSCI Saudi Arabia ETF
KSA
$625M
| $461K | ﹤0.01% |
12,660
-30,435
| -71% | -$1.18M |
|
2606
Vanguard ESG US Stock ETF
ESGV
$13.7B
| $460K | ﹤0.01% |
3,800
-20,400
| -84% | -$2.45M |
|
2607
Capital Group Core Balanced ETF
CGBL
$7.53B
| $459K | ﹤0.01% |
13,000
-41,400
| -76% | -$1.45M |
|
|
DMC
2608
Del Monte Corp
DMC
$1.45B
| $458K | ﹤0.01% |
12,860
-49,863
| -79% | -$1.78M |
|
|
IMA
2609
ImageneBio Inc
IMA
$67M
| $456K | ﹤0.01% |
66,096
+28,718
| +77% | +$213K |
|
2610
Unity Bancorp
UNTY
$622M
| $455K | ﹤0.01% |
8,800
-4,200
| -32% | -$209K |
|
2611
Enerpac Tool Group
EPAC
$1.89B
| $455K | ﹤0.01% |
+11,900
| New | +$471K |
|
2612
Team
TISI
$101M
| $454K | ﹤0.01% |
32,151
-4,600
| -13% | -$68.9K |
|
2613
Stran & Co
SWAG
$36.7M
| $454K | ﹤0.01% |
273,420
+79,589
| +41% | +$156K |
|
2614
Franklin Wireless
FKWL
$28.3M
| $452K | ﹤0.01% |
103,400
-19,900
| -16% | -$93.5K |
|
2615
Superior Group of Companies
SGC
$208M
| $450K | ﹤0.01% |
46,500
-1,000
| -2% | -$9.77K |
|
2616
Optical Cable Corp
OCC
$150M
| $449K | ﹤0.01% |
101,004
-5,299
| -5% | -$41.2K |
|
|
TVRD
2617
Tvardi Therapeutics
TVRD
$21.9M
| $449K | ﹤0.01% |
104,500
+74,325
| +246% | +$666K |
|
|
GRCE
2618
Grace Therapeutics
GRCE
$43.8M
| $449K | ﹤0.01% |
129,781
+45,220
| +53% | +$144K |
|
2619
OmniAb
OABI
$503M
| $449K | ﹤0.01% |
242,700
-280,754
| -54% | -$488K |
|
|
UPB
2620
Upstream Bio Inc
UPB
$377M
| $445K | ﹤0.01% |
+16,400
| New | +$408K |
|
2621
Auburn National Bancorp
AUBN
$91.1M
| $445K | ﹤0.01% |
16,509
| – | – |
|
2622
Invesco S&P 500 High Beta ETF
SPHB
$959M
| $444K | ﹤0.01% |
3,800
-14,200
| -79% | -$1.62M |
|
|
SUNS
2623
Sunrise Realty Trust
SUNS
$101M
| $443K | ﹤0.01% |
47,000
+18,900
| +67% | +$185K |
|
2624
Karyopharm Therapeutics
KPTI
$45.8M
| $441K | ﹤0.01% |
59,914
-4,800
| -7% | -$29.4K |
|
|
TBI
2625
Trueblue
TBI
$302M
| $440K | ﹤0.01% |
96,600
+43,100
| +81% | +$221K |
|
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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.