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 | |
|---|---|---|---|---|---|---|
1526
Acme United Corp
ACU
$233M
| $5.03M | 0.01% |
121,407
-300
| -0.2% | -$11.8K |
|
|
NOA
1527
North American Construction
NOA
$389M
| $5.03M | 0.01% |
314,900
-8,000
| -2% | -$130K |
|
1528
Piper Sandler
PIPR
$5.54B
| $5.03M | 0.01% |
72,380
-68,800
| -49% | -$4.29M |
|
1529
Unisys
UIS
$210M
| $5.01M | 0.01% |
1,106,533
+271,233
| +32% | +$1.22M |
|
1530
iShares Russell 1000 Value ETF
IWD
$84.3B
| $5.01M | 0.01% |
+25,800
| New | +$4.78M |
|
1531
Cricut
CRCT
$1.24B
| $5M | 0.01% |
739,143
+70,900
| +11% | +$405K |
|
1532
Acadia Realty Trust
AKR
$2.86B
| $4.97M | 0.01% |
267,801
+37,701
| +16% | +$730K |
|
1533
Grid Dynamics Holdings
GDYN
$644M
| $4.95M | 0.01% |
428,271
+195,071
| +84% | +$2.57M |
|
1534
Gencor Industries
GENC
$264M
| $4.94M | 0.01% |
352,574
-14,300
| -4% | -$188K |
|
1535
Rayonier
RYN
$6.54B
| $4.93M | 0.01% |
233,310
+65,656
| +39% | +$1.5M |
|
1536
iShares 3-7 Year Treasury Bond ETF
IEI
$17.7B
| $4.93M | 0.01% |
41,400
-12,500
| -23% | -$1.47M |
|
1537
Essential Utilities
WTRG
$11.5B
| $4.92M | 0.01% |
+132,469
| New | +$5.16M |
|
1538
FormFactor
FORM
$10.3B
| $4.92M | 0.01% |
+142,968
| New | +$4.34M |
|
1539
Espey Mfg & Electronics Corp
ESP
$193M
| $4.9M | 0.01% |
107,112
+1,369
| +1% | +$47.3K |
|
1540
Capital Group US Multi-Sector Income ETF
CGMS
$5.42B
| $4.89M | 0.01% |
177,100
+63,757
| +56% | +$1.73M |
|
1541
Sun Life Financial
SLF
$44.8B
| $4.89M | 0.01% |
73,600
+40,700
| +124% | +$2.5M |
|
|
NLOP
1542
Net Lease Office Properties
NLOP
$173M
| $4.88M | 0.01% |
149,900
+58,900
| +65% | +$1.8M |
|
1543
TFI International
TFII
$12.1B
| $4.88M | 0.01% |
54,400
-30,300
| -36% | -$2.56M |
|
1544
Pool Corp
POOL
$7.29B
| $4.87M | 0.01% |
16,700
+6,100
| +58% | +$1.84M |
|
1545
Jakks Pacific
JAKK
$294M
| $4.85M | 0.01% |
233,504
+9,886
| +4% | +$201K |
|
|
OLPX
1546
DELISTED
Olaplex Holdings
OLPX
| $4.85M | 0.01% |
3,464,100
-38,759
| -1% | -$50.5K |
|
1547
J&J Snack Foods
JJSF
$1.7B
| $4.83M | 0.01% |
42,556
-1,600
| -4% | -$194K |
|
1548
State Street SPDR S&P 500 ETF Trust
SPY
$815B
| $4.82M | 0.01% |
+7,800
| New | +$4.46M |
|
1549
PC Connection
CNXN
$2.04B
| $4.8M | 0.01% |
72,900
+3,800
| +5% | +$246K |
|
1550
Bassett Furniture
BSET
$170M
| $4.79M | 0.01% |
314,875
+4,714
| +2% | +$77.9K |
|
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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.