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 |
NVIDIA
NVDA
|
+$798M |
| 2 |
Netflix
NFLX
|
+$608M |
| 3 |
UnitedHealth
UNH
|
+$517M |
| 4 |
Apple
AAPL
|
+$461M |
| 5 |
GE Vernova
GEV
|
+$296M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$527M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$372M |
| 3 |
Meta Platforms (Facebook)
META
|
+$362M |
| 4 |
Advanced Micro Devices
AMD
|
+$328M |
| 5 |
Palantir
PLTR
|
+$327M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.57% |
| 2 | Healthcare | 15.8% |
| 3 | Consumer Discretionary | 12.38% |
| 4 | Financials | 11.53% |
| 5 | Industrials | 8.92% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
576
Compass
COMP
$9.77B
| $27.6M | 0.04% |
4,402,295
+135,995
| +3% | +$931K |
|
577
Capitol Federal Financial
CFFN
$1.1B
| $27.6M | 0.04% |
4,524,297
-308,300
| -6% | -$1.74M |
|
578
Transocean
RIG
$6.37B
| $27.6M | 0.04% |
10,637,636
+4,085,508
| +62% | +$10.5M |
|
579
Sturm, Ruger & Co
RGR
$600M
| $27.5M | 0.04% |
765,676
+6,500
| +0.9% | +$242K |
|
580
Arlo Technologies
ARLO
$1.5B
| $27.4M | 0.04% |
1,617,859
+172,100
| +12% | +$2.2M |
|
581
Rivian
RIVN
$23.1B
| $27.4M | 0.04% |
+1,991,200
| New | +$27M |
|
582
Hecla Mining
HL
$12.2B
| $27.4M | 0.04% |
+4,567,268
| New | +$25.2M |
|
|
WCC
583
WESCO International
WCC
$17.8B
| $27.3M | 0.04% |
147,374
+37,700
| +34% | +$6.22M |
|
584
Loews
L
$23.1B
| $27.3M | 0.04% |
297,400
+32,800
| +12% | +$2.88M |
|
|
BNY
585
Bank of New York Mellon
BNY
$111B
| $27.2M | 0.04% |
+298,111
| New | +$25.3M |
|
|
PRMB
586
Primo Brands
PRMB
$8.65B
| $27.1M | 0.04% |
916,466
+224,943
| +33% | +$7.19M |
|
587
Janus Henderson Short Duration Income ETF
VNLA
$3.35B
| $27.1M | 0.04% |
549,915
-270,527
| -33% | -$13.3M |
|
588
Liberty Global Class C
LBTYK
$3.46B
| $27M | 0.04% |
2,620,915
+530,839
| +25% | +$5.5M |
|
589
American Homes 4 Rent
AMH
$12.2B
| $27M | 0.04% |
+748,729
| New | +$27.7M |
|
590
UMB Financial
UMBF
$11.4B
| $26.9M | 0.04% |
256,070
-12,016
| -4% | -$1.2M |
|
591
Navitas Semiconductor
NVTS
$3.64B
| $26.8M | 0.04% |
+4,087,100
| New | +$15.8M |
|
592
Rush Street Interactive
RSI
$2.81B
| $26.7M | 0.04% |
1,788,900
+48,700
| +3% | +$604K |
|
593
McDonald's
MCD
$195B
| $26.6M | 0.04% |
91,155
-88,714
| -49% | -$27.3M |
|
594
Graco
GGG
$13.4B
| $26.6M | 0.04% |
309,600
+134,500
| +77% | +$11.1M |
|
595
ResMed
RMD
$32.8B
| $26.6M | 0.04% |
103,000
+49,000
| +91% | +$11.7M |
|
596
Canadian Imperial Bank of Commerce
CM
$110B
| $26.5M | 0.04% |
374,828
+91,400
| +32% | +$5.88M |
|
597
Strategy Inc
MSTR
$37.3B
| $26.5M | 0.04% |
264,599
+243,799
| +1,172% | +$88.8M |
|
598
Liberty Media Series A
FWONA
$23.7B
| $26.5M | 0.04% |
278,697
-55,025
| -16% | -$4.65M |
|
599
OneSpaWorld
OSW
$2.7B
| $26.4M | 0.04% |
1,293,640
-93,800
| -7% | -$1.72M |
|
600
MongoDB
MDB
$35.2B
| $26.4M | 0.04% |
+125,600
| New | +$23.2M |
|
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Jim Simons's Q2 2025 Portfolio in Review
As of Q2 2025, Jim Simons held 4,018 positions worth $75.2B, up 14% from $66.1B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons's Q2 2025 filing shows 612 new, 1,577 increased, 1,314 reduced and 496 closed positions. Its largest new stake was UnitedHealth: 1,352,129 shares worth $422M. The largest sale was Broadcom, an estimated $527M.
By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 17% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Jim Simons's largest Q2 2025 buy was UnitedHealth: 1,352,129 shares worth $422M.
- Jim Simons added most to NVIDIA in Q2 2025, an estimated $798M increase.
- Jim Simons's biggest Q2 2025 reduction was Broadcom, cutting an estimated $527M.
- Jim Simons fully exited Advanced Micro Devices in Q2 2025, selling an estimated $328M.
- Jim Simons's ten largest holdings make up 12% of its $75.2B portfolio in Q2 2025.
- Jim Simons opened 612 new positions and closed 496 in Q2 2025.
- Jim Simons's portfolio value rose 14% quarter-over-quarter to $75.2B.
Based on Renaissance Technologies's 13F filing for Q2 2025, filed 13 Aug 2025.