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 | |
|---|---|---|---|---|---|---|
1676
SIGA Technologies
SIGA
$207M
| $3.9M | 0.01% |
598,912
-28,624
| -5% | -$172K |
|
|
EHAB
1677
DELISTED
Enhabit
EHAB
| $3.9M | 0.01% |
405,068
+152,568
| +60% | +$1.41M |
|
1678
Immunovant
IMVT
$8.64B
| $3.86M | 0.01% |
241,400
-154,500
| -39% | -$2.34M |
|
1679
Blend Labs
BLND
$367M
| $3.86M | 0.01% |
+1,170,200
| New | +$3.96M |
|
1680
Consumer Portfolio Services
CPSS
$208M
| $3.86M | 0.01% |
392,658
-9,400
| -2% | -$86.3K |
|
1681
Kaiser Aluminum
KALU
$2.99B
| $3.86M | 0.01% |
48,300
+27,100
| +128% | +$1.84M |
|
1682
Cannae Holdings
CNNE
$675M
| $3.85M | 0.01% |
184,591
-26,409
| -13% | -$488K |
|
1683
Urban Edge Properties
UE
$2.78B
| $3.84M | 0.01% |
206,000
-84,300
| -29% | -$1.54M |
|
|
GAU
1684
Galiano Gold
GAU
$547M
| $3.84M | 0.01% |
3,025,953
-129,700
| -4% | -$176K |
|
1685
iShares Global Infrastructure ETF
IGF
$10.7B
| $3.84M | 0.01% |
+64,900
| New | +$3.71M |
|
|
RPC
1686
Ridgepost Capital
RPC
$988M
| $3.83M | 0.01% |
374,950
+128,700
| +52% | +$1.38M |
|
1687
iShares MSCI World ETF
URTH
$8.4B
| $3.83M | 0.01% |
22,600
+17,800
| +371% | +$2.81M |
|
1688
Ramaco Resources Class A
METC
$667M
| $3.83M | 0.01% |
291,300
-95,436
| -25% | -$912K |
|
1689
Vanguard Morningstar Mid-Cap Value ETF
VOE
$24.5B
| $3.82M | 0.01% |
+23,200
| New | +$3.67M |
|
1690
Bel Fuse Inc Class A
BELFA
$3.4B
| $3.81M | 0.01% |
42,453
-300
| -0.7% | -$20.8K |
|
1691
Healthcare Services Group
HCSG
$1.45B
| $3.81M | 0.01% |
253,764
+179,100
| +240% | +$2.37M |
|
1692
Lindsay Corp
LNN
$1.17B
| $3.81M | 0.01% |
26,400
-18,800
| -42% | -$2.51M |
|
1693
Ocular Therapeutix
OCUL
$2.22B
| $3.81M | 0.01% |
410,048
-43,952
| -10% | -$344K |
|
1694
eGain
EGAN
$206M
| $3.79M | 0.01% |
606,119
-6,300
| -1% | -$33.7K |
|
|
SLNO
1695
DELISTED
Soleno Therapeutics
SLNO
| $3.79M | 0.01% |
+45,200
| New | +$3.38M |
|
1696
CuriosityStream
CURI
$237M
| $3.79M | 0.01% |
672,600
+152,100
| +29% | +$698K |
|
1697
First United
FUNC
$298M
| $3.79M | 0.01% |
122,095
+9,200
| +8% | +$272K |
|
|
CCRN
1698
DELISTED
Cross Country Healthcare
CCRN
| $3.77M | 0.01% |
288,983
+113,965
| +65% | +$1.57M |
|
|
TGNA
1699
DELISTED
TEGNA Inc
TGNA
| $3.77M | 0.01% |
224,700
+149,500
| +199% | +$2.49M |
|
1700
Townsquare Media
TSQ
$104M
| $3.74M | 0.01% |
472,852
+2,200
| +0.5% | +$15.6K |
|
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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.