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 | |
|---|---|---|---|---|---|---|
1676
SFL Corp
SFL
$1.63B
| $2.73M | ﹤0.01% |
349,465
-276,832
| -44% | -$2.13M |
|
1677
Jakks Pacific
JAKK
$293M
| $2.73M | ﹤0.01% |
161,518
-30,996
| -16% | -$537K |
|
1678
Maximus
MMS
$2.9B
| $2.72M | ﹤0.01% |
31,500
-100,700
| -76% | -$8.61M |
|
1679
Horace Mann Educators
HMN
$2.1B
| $2.72M | ﹤0.01% |
58,800
-34,300
| -37% | -$1.55M |
|
1680
Remitly
RELY
$5.55B
| $2.71M | ﹤0.01% |
196,447
-1,332,700
| -87% | -$19.4M |
|
1681
Similarweb
SMWB
$774M
| $2.71M | ﹤0.01% |
361,473
-2,500
| -0.7% | -$20.2K |
|
1682
One Stop Systems
OSS
$331M
| $2.7M | ﹤0.01% |
375,701
-17,459
| -4% | -$103K |
|
|
ATXS
1683
DELISTED
Astria Therapeutics
ATXS
| $2.7M | ﹤0.01% |
205,961
-189,300
| -48% | -$2.26M |
|
|
UCTT
1684
Ultra Clean Holdings
UCTT
$4.07B
| $2.7M | ﹤0.01% |
106,400
+16,900
| +19% | +$450K |
|
1685
Design Therapeutics
DSGN
$901M
| $2.69M | ﹤0.01% |
287,100
+12,800
| +5% | +$100K |
|
1686
First Bancorp
FNLC
$400M
| $2.68M | ﹤0.01% |
101,463
-7,800
| -7% | -$201K |
|
1687
Alerus Financial
ALRS
$845M
| $2.68M | ﹤0.01% |
119,012
+29,933
| +34% | +$653K |
|
1688
Aquestive Therapeutics
AQST
$521M
| $2.68M | ﹤0.01% |
414,400
+327,400
| +376% | +$2.04M |
|
|
KALV
1689
DELISTED
KalVista Pharmaceuticals
KALV
| $2.67M | ﹤0.01% |
+165,151
| New | +$2.19M |
|
1690
iShares MSCI EAFE Growth ETF
EFG
$17.4B
| $2.67M | ﹤0.01% |
23,400
+15,200
| +185% | +$1.74M |
|
|
FITB
1691
Fifth Third Bancorp
FITB
$52.9B
| $2.67M | ﹤0.01% |
+56,939
| New | +$2.51M |
|
|
BLFY
1692
DELISTED
Blue Foundry Bancorp
BLFY
| $2.66M | ﹤0.01% |
214,200
+71,300
| +50% | +$712K |
|
1693
Thor Industries
THO
$4.11B
| $2.66M | ﹤0.01% |
25,900
-60,400
| -70% | -$6.28M |
|
1694
Lamb Weston
LW
$7.31B
| $2.65M | ﹤0.01% |
+63,300
| New | +$3.73M |
|
1695
Comp X International
CIX
$390M
| $2.64M | ﹤0.01% |
113,549
-6,600
| -5% | -$149K |
|
1696
BCB Bancorp
BCBP
$163M
| $2.64M | ﹤0.01% |
327,194
-14,900
| -4% | -$120K |
|
1697
EVgo
EVGO
$525M
| $2.63M | ﹤0.01% |
904,833
+304,600
| +51% | +$1.11M |
|
1698
iShares ESG Aware MSCI USA ETF
ESGU
$18.5B
| $2.62M | ﹤0.01% |
17,600
-5,400
| -23% | -$798K |
|
|
RHLD
1699
Resolute Holdings Management
RHLD
$1.09B
| $2.62M | ﹤0.01% |
12,700
+1,009
| +9% | +$149K |
|
1700
MasterCraft Boat Holdings
MCFT
$599M
| $2.61M | ﹤0.01% |
138,056
-9,300
| -6% | -$183K |
|
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.