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 | |
|---|---|---|---|---|---|---|
2151
Brown-Forman Class A
BF.A
$13B
| $1.87M | ﹤0.01% |
68,176
-15,800
| -19% | -$507K |
|
2152
Annexon
ANNX
$862M
| $1.87M | ﹤0.01% |
777,900
-384,537
| -33% | -$771K |
|
2153
State Street Technology Select Sector SPDR ETF
XLK
$125B
| $1.85M | ﹤0.01% |
14,600
+5,400
| +59% | +$599K |
|
2154
Biglari Holdings Class B
BH
$1.22B
| $1.85M | ﹤0.01% |
6,326
+400
| +7% | +$97.1K |
|
2155
Kaltura
KLTR
$241M
| $1.85M | ﹤0.01% |
918,400
+111,700
| +14% | +$231K |
|
2156
Codexis
CDXS
$175M
| $1.84M | ﹤0.01% |
755,486
+104,700
| +16% | +$246K |
|
2157
Greif Class B
GEF.B
$4.24B
| $1.84M | ﹤0.01% |
26,700
+700
| +3% | +$42.5K |
|
2158
Landmark Bancorp
LARK
$197M
| $1.84M | ﹤0.01% |
72,927
+630
| +0.9% | +$16.9K |
|
2159
XP
XP
$8.18B
| $1.84M | ﹤0.01% |
90,924
-322,963
| -78% | -$5.58M |
|
2160
Kemper
KMPR
$1.56B
| $1.83M | ﹤0.01% |
28,410
+11,100
| +64% | +$687K |
|
2161
Schwab US Broad Market ETF
SCHB
$45.2B
| $1.83M | ﹤0.01% |
+76,900
| New | +$1.69M |
|
2162
JPMorgan BetaBuilders Canada ETF
BBCA
$11.4B
| $1.83M | ﹤0.01% |
+22,700
| New | +$1.72M |
|
2163
Colony Bankcorp
CBAN
$467M
| $1.82M | ﹤0.01% |
110,678
+3,700
| +3% | +$57.2K |
|
2164
PRA Group
PRAA
$762M
| $1.82M | ﹤0.01% |
123,500
+6,303
| +5% | +$100K |
|
2165
Pegasystems
PEGA
$5.51B
| $1.82M | ﹤0.01% |
+33,648
| New | +$1.52M |
|
2166
ABM Industries
ABM
$2.84B
| $1.82M | ﹤0.01% |
38,500
-11,400
| -23% | -$551K |
|
2167
Simpson Manufacturing
SSD
$7.99B
| $1.82M | ﹤0.01% |
11,700
-18,400
| -61% | -$2.85M |
|
2168
E.W. Scripps
SSP
$310M
| $1.81M | ﹤0.01% |
616,414
+127,400
| +26% | +$308K |
|
|
ONIT
2169
Onity Group
ONIT
$321M
| $1.81M | ﹤0.01% |
47,463
+7,400
| +18% | +$261K |
|
|
IRBT
2170
DELISTED
iRobot
IRBT
| $1.81M | ﹤0.01% |
578,588
+292,112
| +102% | +$808K |
|
|
ASRT
2171
DELISTED
Assertio
ASRT
| $1.81M | ﹤0.01% |
188,142
+7,846
| +4% | +$75.4K |
|
2172
Lantronix
LTRX
$272M
| $1.81M | ﹤0.01% |
629,694
+5,100
| +0.8% | +$11.6K |
|
2173
Cass Information Systems
CASS
$750M
| $1.81M | ﹤0.01% |
+41,560
| New | +$1.74M |
|
|
SSBK
2174
DELISTED
Southern States Bancshares
SSBK
| $1.8M | ﹤0.01% |
49,600
+2,900
| +6% | +$99.3K |
|
2175
Energy Recovery
ERII
$397M
| $1.8M | ﹤0.01% |
141,100
-100,400
| -42% | -$1.36M |
|
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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.